pickering User ManualPage 1 pickering SIM REED RELAY CARDS SIMRC 1000 Issue 4.12 April 2013 User Manual SIMRC 1000 Series (Model Nos. 1010/1020/1030) and Accessories pickering SIM

Page 1

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SIM REED RELAY CARDS SIMRC 1000

Issue 4.12 April 2013

User Manual

SIMRC 1000 Series(Model Nos. 1010/1020/1030)

and Accessories

www.pickeringtest.com pickering

SIM SWITCH CARDS & ACCESSORIES

Page ii

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© COPYRIGHT (2013) PICKERING INTERFACES. ALL RIGHTS RESERVED.

No part of this publication may be reproduced, transmitted, transcribed, translated or stored in any form, or by any means without the written permission of Pickering Interfaces.

Technical details contained within this publication are subject to change without notice.

ISO 9002Reg No. FM38792

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TECHNICAL SUPPORT

For Technical Support please contact Pickering Interfaces either by phone, fax, the website or via e-mail.

WARRANTY

All products manufactured by Pickering Interfaces are warranted against defective materials and workmanship for a period of two years, excluding PXI chassis, from the date of delivery to the original purchaser. Any product found to be defective within this period

will, at the discretion of Pickering Interfaces be repaired or replaced.

Products serviced and repaired outside of the warranty period are warranted for ninety days.

Extended warranty and service are available. Please contact Pickering Interfaces by phone, fax, the website or via e-mail.

ENVIRONMENTAL POLICY

Pickering Interfaces operates under an environmental management system similar to ISO 14001.

environment. Pickering Interfaces aims to design and operate products in a way that protects the environment and the health and safety of its employees, customers and the public. Pickering Interfaces endeavours to develop and manufacture products that can

be produced, distributed, used and recycled, or disposed of, in a safe and environmentally friendly manner.

Worldwide Technical Support and Product Informationhttp://www.pickeringtest.com

Pickering Interfaces HeadquartersStephenson Road Clacton-on-Sea CO15 4NL United KingdomTel: +44 (0)1255-687900Fax: +44 (0)1255-425349E-Mail: [email protected]

Observe the Electrical Hazard Warning detailed in Section 8.

Observe the Electrostatic Sensitive Device Caution detailed in Section 8.

Pickering Interfaces GmbHJohann-Karg-Straße 30D-85540Haar-SalmdorfGermany

Tel: +49 89 125 953 160Fax: +49 89 125 953 189E-Mail: [email protected]

Pickering Interfaces ABKarl Nordströmsväg 31432 53 VarbergSweden

Tel: +46 340-69 06 69Fax: +46 340-69 06 68E-Mail: [email protected]

Pickering Interfaces Inc.2900 Northwest Vine StreetGrants PassOregon 97526USA

Tel: +1 541 471 0700Fax: +1 541 471 8828E-Mail: [email protected]

Pickering Interfaces s.r.o.Smetanova 525Trinec739 61Czech Republic

Tel: +42 0558 339 168Fax: +42 0558 340 888E-mail: [email protected]

ˇ

Pickering Interfaces SARL6 Rue De La Mare Blanche77186 NoisielMarne Le ValleeFrance

Tel +33 1 60 53 55 50Fax +33 1 60 53 55 99email [email protected]

Pickering Interfaces Inc. (East Coast Regional Office) 67 South Bedford Street, Suite 400W Burlington, Massachusetts 01803 USA

Tel: +1 781 229 5882 Fax: +1 781 272 0558 E-mail: [email protected]

Pickering Interfaces strives to fulfil all relevant environmental laws and regulations and reduce wastes and releases to the

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THIS PAGE INTENTIONALLY BLANK

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Copyright Statement .......................................................... ii

Technical Support and Warranty ....................................... iii

Contents (this page) ...........................................................v

Section 1Introduction .........................................................................1.1 Series1010ReedRelayConfigurations ................ 1.2 Series1020MultiplexerConfigurations ................. 1.2 Series1030MatrixConfigurations ......................... 1.2 Accessories (Carrier Cards and Control Interfaces) .. 1.3

Section 2TechnicalSpecification ......................................................2.1 RFSpecificationforRFVersions ........................... 2.2

Section 3Installation and Operation ................................................. 3.1 Constructing Large Switching Networks ............... 3.3

Section 4Programming ......................................................................4.1 Software Command List - I2C Operation ................ 4.1 Software Command List - RS232 Operation .......... 4.1 Command Execution Timings................................. 4.2 I2C Read and Write Data Formats ........................... 4.2 Relay Data Block Structures ................................... 4.2 I2C Bus Operation ....................................................4.3 RS232 Operation ......................................................4.5 1080 SIM Relay Card Controller .............................. 4.8

Section 5Connector Pin Outs ............................................................5.1 I2C/RS232 Connector ............................................... 5.3 I2C/RS232 Port Selection ......................................... 5.3 I2C Address Settings ................................................ 5.3 Pinout Connections For All SIMRC Cards ............. 5.4

Section 6General Description ...........................................................6.1 Mechanical Description ........................................... 6.1 Daisy Chaining Modules ......................................... 6.2 Carrier Cards ............................................................6.3 Support Products .....................................................6.9

Section 7Warnings and Cautions ..................................................... 7.1

CONTENTS

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SECTION 1 - INTRODUCTION

Page 1.1SIM REED RELAY CARDS SIMRC 1000

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Pickering Interfaces Series 1000 SIM Reed Relay Cards offer a choice of switching configurations using low cost industry standard SIM connectors. They free the designer from the detail of routing complex switching circuits, you may select from a wide range of cards using the built in RS-232 and I2C interfaces.

The SIM Relay Cards are intended to be mounted on to a simple motherboard. They may be used to construct very high density switching networks. SIM based switching cards also allow for very simple in-field maintenance. The range is as follows:

• 8 x SPST Uncommitted Reed Relays• 16 x SPST Uncommitted Reed Relays• 16 x SPDT Uncommitted Reed Relays• 16 x SPST Uncommitted Screened Reed Relays• 8 Channel, 1-Pole Reed Relay Multiplexer• 8 Channel, 2-Pole Reed Relay Multiplexer• 16 Channel, 1-Pole Reed Relay Multiplexer• 16 Channel, 2-Pole Reed Relay Multiplexer• 16 Channel, 1-Pole Screened Reed Relay Multiplexer• 8 x 2, 1-Pole, Reed Relay Matrix• 8 x 2, 1-Pole, Screened Reed Relay Matrix• 8 x 2, 2-Pole, Reed Relay Matrix• 8 x 4, 1-Pole, Reed Relay Matrix• 8 x 4, 1-Pole, Screened Reed Relay Matrix• 8 x 4, 2-Pole, Reed Relay Matrix

Pickering Interfaces will also produce customised versions for specific applications.

Automatic Self-TestA limited logic only Self-Test is invoked at power on and may also be operated under software command. Self-Test pass is indicated by a PCB mounted LED with a full pass/fail description available via either the I2C or RS-232 interfaces.ConnectionsControl and signal lines are made using the 72-way SIM connector. There is also a 4-pin plug for connection to the I2C or RS-232 interface Other connector types may be available.SoftwareThe SIM Relay Cards have a simple ASCII control language (the same commands work with either I2C or RS-232). Pickering have drivers available to assist with software development and debugging for NI LabView.

Microcontroller Based DesignThe SIM Relay Card has a built-in single chip microcontroller (Microchip PIC16C74). The operation of this card is entirely under the control of this microcontroller which receives commands via its I2C and RS-232 interfaces. The Card has a standard I2C and RS-232 interface with read/write capability and is constructed using a 4 layer PCB with extensive RFI shielding, most components being surface mount with the exception of relays and jumpers to simplify maintenance.

High Quality Pickering ReedRelays (1 or 2 Pole or Co-ax)Gold SIM Contacts

I2C AddressSelection

StatusLED

I2C PortRS232/

8-Bit RISC Microprocessor 4-Layer PCB

PowerLED

I2C Bus on SIMMConnector

Figure 1.1 - Features of the SIMRC 1030 Matrix Module

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Series1010ReedRelayConfigurations

A1 C1 A2 C2 A3 C3

A16 C16

A1 C1 S1 S1

A2 C2 S2 S2

A16 C16 S16 S16

A3 C3S3 S3

A1

C1 B1

A2

C2 B2

A16

C16 B16

1

16

2

3

1.2

1.1

2.2

2.1

16.216.1

S 1

1

S 2

2

S 1616

C C.2

C.1

S CC

Series1020MultiplexerConfigurations

I2C/RS-232 Reed Relay SIM Card (Top View) I2C/RS-232 Reed Relay SIM Card (Underside View)

Series1030MatrixConfigurationsY 2 Y 4

X 1

X 4

Y 1 Y 3

X 2

X 3

X 5

X 6

X 7

X 8

Y 2 Y 4

X 1

X 4

Y 1 Y 3

X 2

X 3

X 5

X 6

X 7

X 8

Y 2 Y 4

X 1

X 4

Y 1 Y 3

X 2

X 3

X 5

X 6

X 7

X 8

Matrix Card (Top View) Matrix Card (Underside View)

16-Channel 1-Pole 16-Channel 2-Pole 16-Channel 1-Pole Coax

Matrix 1-Pole Matrix 2-Pole 8 x 4 Matrix 1-Pole Coax

16 x SPDT (Changeover)16 x SPST 16 x SPST Coax


Page 1.3SIM REED RELAY CARDS SIMRC 1000

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Accessories (Carrier Cards and Control Interfaces)Carrier cards are available that support either one or three SIM cards.

For applications where more than one SIM relay card is supported, each card can be I2C controlled and an optional RS232 to I2C converter used to provide overall RS232 control.

More information can be found in Section 6 General Description.

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SECTION 2 - SPECIFICATION

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SECTION 2 - SPECIFICATION

www.pickeringtest.com E-Mail [email protected]

Specification

General Switching Specification

Maximum Voltage:Maximum Power:Maximum Switch Current:

100VDC20W1.0A

Characteristic Impedance (coax versions):Bandwidth (SPST coax version):Bandwidth (16-channel coax version):Bandwidth (8 x 4 matrix coax version):

50Ω300MHz60MHz60MHz

On Path Resistance (1 relay):Off Path Resistance:Differential Thermal Offset:

<150mΩ>1x109Ω

<10µV

Switching Time (1 relay):Switching Time (16 data block):Relay Mechanical Settling Time:

1.5ms †2.5ms †<300µs

Expected Life (Low power):Expected Life (Max power):

>1x109 ops>5x106 ops

† Typical time with I2C maximum transfer rate of 100kBits

Switching Specification - SPDT Relays Only

Maximum Voltage:Maximum Power:Maximum Switch Current:Maximum Carry Current:

100VDC3W0.25A1.0A

LED Indicators

Built in LED indicators are provided to show status and power.

Power Supply Requirements

Required Voltage:

Current:

5V ±0.25V

100mA typical per SIM<200mA with 8 relays selected<500mA with 32 relays selected

I2C Communication

The SIM Relay Card uses a message based method of communication with the controller, all data is exchanged through a single read/write register.

A DIP switch is provided for I2C addressing. This controls addressing bits 4 to 1, in addition jumpers are available for bits 5 to 7 (if required). All 7 address bits are also available on the SIM connector, allowing the I2C address to be read from the motherboard.

RS-232 Port

The SIM Relay Card can alternatively be configured with an RS-232 port (9600 baud, 8 bit, no parity, no handshaking). This is provided on a 4 pin Molex type connector (a jumper on the PCB selects RS-232 or I2C use for this port). A separate adapter lead to allow use with a standard 9 pin D-type is available. The RS-232 port allows the SIM Relay Card to be controlled and monitored from any RS-232 terminal.

RS-232 to I2C Converter Module

The RS-232 to I2C converter 1080-001 allows control of multiple relay cards that are set for I2C operation. Like the relay cards, the module uses the SIM card mechanical profile.

Constructing Large Switching Networks

RS-232 Control: If just one card is to be run you simply connect your RS-232 lead to the SIM RS-232 port (4 pin connector on the SIM card), but if more than one card is to be controlled you must use the converter module, type 1080-001 to provide conversion from RS-232 to the I2C interfaces of the relay cards.

I2C Control: When using the I2C bus any number (up to 128) of SIMRC cards can be run.

Versions For RF Use

SIMRC modules are available in RF versions, that are designed for use in 50Ω or 75Ω systems. All connections are via the 72 way edge connector. Care must be taken with the motherboard layout to ensure good RF performance (for example correct track dimensions and good ground planes), please contact Pickering for further assistance. Versions suitable for RF use have “RF” in their product code suffix.

Dimensions

The SIM Relay Card conforms to the same outline dimensions as a standard SIM (Single In Line Memory Module). Width is 108mm, Height is 12mm, Depth is 39mm for matrix modules and 23mm for all other variants

Carrier Cards

Small Outline PCB

The small outline PCB 1091-001 supports one SIM card and provides an easy method of wiring a cable to the SIM card by soldered connections.

RF Carrier

The RF carrier 1092-001 hosts a single relay SIM card and brings the connections out on RF connectors. It provides a simple way of connecting to relay cards that are specified for RF use.

Card Carrier - 3 SIM Cards

The 3 SIM card carrier 1050-001 supports three SIM Relay Cards and a 1080-001 Converter Module to provide an RS-232 interface. Connections for the signal lines are brought out on three 50-way D-type connectors.

Operating/Storage Conditions

Operating Conditions

Operating Temperature: Humidity: Altitude:

0°C to 55°C Up to 95% non-condensing 5000m

Storage and Transport Conditions

Storage Temperature: Humidity: Altitude:

-20°C to +75°C Up to 95% non-condensing 15000m

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SECTION 2 - SPECIFICATION pickering


SpecificationForRFVersionsSIMRC modules are available in RF versions, these are suitable for use in either 50Ω or 75Ω systems. All connections are via the 72 way edge connector. Care must be taken with the motherboard layout to ensure good RF performance (for example correct track dimensions and good ground planes), please contact Pickering for further assistance.

0 dB

-0.8 dB

-1.2 dB

-1.6 dB

-2.0 dB

-2.4 dB

-2.8 dB

-0.4 dB

-3.2 dB

100MHz 200MHz 300MHz

SPST INSERTION LOSS

1.6

1.4

1.2

1.0

1.8

13dB

16dB

21dB

11dB

VS

WR

Retu

rn L

oss

26dB

100MHz 200MHz 300MHz

SPST VSWR (RETURN LOSS)

-60 dB

-50 dB

100MHz 200MHz

SPST ISOLATION

300MHz

-40 dB

-30 dB

0 dB

-0.8 dB

-1.2 dB

-1.6 dB

-2.0 dB

-2.4 dB

-2.8 dB

-0.4 dB

-3.2 dB

20MHz 40MHz 60MHz

MULTIPLEXER INSERTION LOSS

1.6

1.4

1.2

1.0

1.8

13dB

16dB

21dB

11dB

VS

WR

Retu

rn L

oss

26dB

20MHz 40MHz 60MHz

MULTIPLEXER VSWR (RETURN LOSS)

-60 dB

-50 dB

20MHz 40MHz

MULTIPLEXER ISOLATION

60MHz

-40 dB

-30 dB

0 dB

-0.8 dB

-1.2 dB

-1.6 dB

-2.0 dB

-2.4 dB

-2.8 dB

-0.4 dB

-3.2 dB

20MHz 40MHz 60MHz

MATRIX INSERTION LOSS

1.6

1.4

1.2

1.0

1.8

13dB

16dB

21dB

11dB

VS

WR

Retu

rn L

oss

26dB

20MHz 40MHz 60MHz

MATRIX VSWR (RETURN LOSS)

-60 dB

-50 dB

20MHz 40MHz

MATRIX ISOLATION

60MHz

-40 dB

-30 dB

Figure 2.1 - Performance of RF Reed Relay Module

Figure 2.2 - Performance of RF Relay Multiplexer Module

Figure 2.3 - Performance of RF Relay Matrix Module

Series 1010 - Uncommitted Reed Relay Modules

16 x SPST Reed Relays16 x SPDT Reed Relays16 x SPST screened Reed Relays8 x SPST Reed Relays

1010-R-16-1-5/1D1010-R-16-1-5/3D1010-R-16-1RF-5/1D1010-R-8-1-5/1D

Series 1020 - Multiplexer Modules

16 Channel, 1-pole16 Channel, 2-pole16 Channel, 1-pole screened8 Channel, 1-pole8 Channel, 2-pole

1020-R-16-1-5/1D1020-R-16-2-5/1D1020-R-16-1RF-5/1D1020-R-8-1-5/1D1020-R-8-2-5/1D

SIM Relay Card Product Order CodesSeries 1030 - Matrix Modules

8 x 2 Matrix, 1-pole8 x 2 Matrix, 2-pole8 x 2 Matrix, 1-pole screened8 x 4 Matrix, 1-pole8 x 4 Matrix, 2-pole8 x 4 Matrix, 1-pole screened

1030-R-8-2-1-5/1D1030-R-8-2-2-5/1D1030-R-8-2-1RF-5/1D1030-R-8-4-1-5/1D1030-R-8-4-2-5/1D1030-R-8-4-1RF-5/1D

Carrier Cards

Small Outline PCB with single SIM SocketRF PCB with 72 Pin SIM SocketSIM Relay Card Carrier (3 SIM + 1080-001 converter)

1091-0011092-001

1050-001

Support Products

RS-232 to I2C Converter ModuleRS-232 9 Way D-type lead72 Pin SIM Socket (gold contacts)

1080-0011081-0011090-001

SECTION 3 - INSTALLATION AND OPERATION

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SECTION 3 - INSTALLATION & OPERATION

CAUTION

Electrostatic discharge can damage the components on the module. To avoid such damage in handling the board, touch the anti-static bag to a metal part of the chassis before removing the board from the bag.The module should be installed in accordance with the following procedure:

1. Ensure that the system is turned OFF but still connected to mains so that it remains grounded.

2. Choose an appropriate SIM socket on the mother board.

3. Remove the SIMRC module from its anti-static packaging.

4. Hold the module above the SIM socket so that the 72-pin connector lines up with the socket’s contacts ensuring that the pin 1 cut-out in the module’s PCB is aligned with pin 1 of the socket.

5. Angle the module so that it’s contacts are still aligned with the socket but it is at about 45º to the plane of the mother board.

6. Insert the module into the contacts of the socket and whilst maintaining downward pressure, slowly raise the angle of the module until it is vertical and positively latched into the socket housing.

7. When the module is correctly fitted, the reference holes in the module’s PCB locate onto the plastic lugs of the socket housing and metal retaining clips at each end hold it in the vertical position.

8. Removal of a SIMRC module is the reverse of the fitting procedure with the metal retaining clips having to be pushed outwards to allow the module to be angled away from the socket housing.

WARNING - DANGER OF ELECTRIC SHOCKBEFORE REMOVING THE MODULE FROM THE MOTHER BOARD ENSURE

THAT ALL CONNECTIONS TO THE MODULE ARE REMOVED

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SECTION 3 - INSTALLATION AND OPERATION pickering


Constructing Large Switching Networks with RS-232 or I2CThe SIM Relay Card may be operated by RS-232 or I2C in the ways shown in the diagrams below. For a description and wiring diagram for interconnecting multiple SIMRC modules in a daisy-chain configuration, please refer to Section 6.

RS-232 Control

I 2C Bus (on motherboard)

I2C Bus (on motherboard)

RS-232 Control

Motherboard PCB (user’s design)

RS-232 to I2C

Motherboard PCB

Motherboard PCB

10

80



Motherboard PCB

Up to 128 SIMRC Cardscan be on the I C Bus2


(user’s design)

I2C Control(I2C converter card

inside PC)

(user’s design) (user’s design)


inside PC)Converter Module(model 1080-001)

RS-232 Control

I 2C Bus (on motherboard)


RS-232 Control

Motherboard PCB (user’s design)

RS-232 to I2C

Motherboard PCB

Motherboard PCB

10

80



Motherboard PCB



(user’s design)


inside PC)

(user’s design) (user’s design)


inside PC)Converter Module(model 1080-001)

Single SIMRC Card controlled by RS-232 Single SIMRC Card controlled by I2C

Multiple SIMRC Cards controlled by RS-232, using the 1080-001 RS-232 to I2C converter module

Multiple SIMRC Cards controlled by I2C

I2C ControlWhen using the I2C bus any number (up to 128) of SIMRC cards can be run. As shown in the examples below. The I2C address is set on the module with switches and jumpers and may also be read directly from the motherboard.

RS-232 ControlIf just one card is to be run you simply connect your RS-232 lead to the SIM RS-232 port (4 pin connector on the SIM card). If more than one card is to be controlled then you must use the RS-232 to I2C converter module, type 1080-001. Both these examples are shown below.

SECTION 4 - PROGRAMMING

Page 4.1

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The SIM Relay Cards are programmed using a simple ASCII control language via an I2C or an RS232 interface. The I2C interface is routed to the module’s 72-pin connector and therefore can be connected to a controller via the motherboard and daisy-chained to other modules as required. The module can also be controlled using the on-board 4-pin connector linked to a host controller via a suitable serial lead. This can be set as I2C or RS232 using jumper links, the same control commands being valid for either interface format. I2C communication requires an address to be set for the module using the on-board DIP switch and jumper links, this is shown on Page 5.3.

Below is a brief summary of the commands for controlling the SIMRC modules. The following pages give a detailed breakdown of each command’s meaning

SIMRC Command Summary

Software Command List: I2C Operation

I2C Commands: SB <n bytes> = set switches to given bit pattern SC <byte> = close the specified switch SO <byte> = open the specified switch RS = open all switches DI = Diagnostic query TY = Type query TS <byte> = Test query, with/without forcing selftestThe number of data bytes required by the SB command depends on the number of outputs available on the particular module, e.g. a 32-output module requires 4 bytes.

I2C Error Codes (Status Byte): Bit 0 (CME) = Syntax error / unrecognised command) Bit 1 (EXE) = Unexecutable command (e.g. bad data value) Bit 2 (CI) = Command Interrupted Bit 3 (RI) = Response Interrupted

Software Command List: RS-232 Operation

RS-232 Commands (mirror I2C commands): SB <hex data> = set switches to given hexadecimal pattern SC <number> = close the specified (decimal) switch SO <number> = open the specified (decimal) switch RS = open all switches DI = perform DI query, display response TY = perform TY query, display response TS <0|1> = perform TS query, display result valueThe size of the hexadecimal quantity required by the SB command depends on the number of outputs available on the particular module, e.g. a 32-output module requires a 32-bit value.A simple help facility is built into the RS-232 port, with a complete list of all commands.

RS-232 only Commands: WH = Display device ID, version information, I2C address BV = Display state of all switches (as a n-bit hexadecimal quantity) DU <0|1> = Dump module test history (N/A)

RS-232 Error Messages: ?1 = Syntax error, unrecognised command etc. ?2 = Bad command delimiter ?3 = Bad hexadecimal ?4 = Bad decimal ?5 = Value out of range ?6 = Trailing garbageFor further information on the command set please contact Pickering Interfaces.

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SECTION 4 - PROGRAMMING pickering


I2C Read and Write Data FormatsI2C Read Data Format (8-Bit Word)

(msb) DATA (lsb)B7 B6 B5 B4 B3 B2 B1 B0

Binary/ASCII Data

I2C Write Data Format (8-Bit Word)(msb) DATA (lsb)

B7 B6 B5 B4 B3 B2 B1 B0Binary/ASCII Data

Relay Data Block Structures

1010 Reed Relay Card - 2 Byte Data Block Format

Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

Data Byte 0 Data Byte 1

SW16 SW8

SW15 SW7

SW14 SW6

SW13 SW5

SW12 SW4

SW11 SW3

SW10 SW2

SW9 SW1

1020 Multiplexer Card - 2 Byte Data Block Format


Data Byte 0 Data Byte 1

Ch16 Ch8

Ch15 Ch7

Ch14 Ch6

Ch13 Ch5

Ch12 Ch4

Ch11 Ch3

Ch10 Ch2

Ch9 Ch1

1030 Matrix Card - 4 Byte Data Block Format


Data Byte 0 Data Byte 1 Data Byte 2 Data Byte 3

X8, Y4 X8, Y3 X8, Y2 X8, Y1

X7, Y4 X7, Y3 X7, Y2 X7, Y1

X6, Y4 X6, Y3 X6, Y2 X6, Y1

X5, Y4 X5, Y3 X5, Y2 X5, Y1

X4, Y4 X4, Y3 X4, Y2 X4, Y1

X3, Y4 X3, Y3 X3, Y2 X3, Y1

X2, Y4 X2, Y3 X2, Y2 X2, Y1

X1, Y4 X1, Y3 X1, Y2 X1, Y1

0ms 2ms 4ms 6ms 8ms 10ms

Close 1 Switch

Operate 16 Switches

Clear 16 Switches

(100kbit)

(100kbit)

RS-232 (9600baud)

(30kbit)

12ms 14ms 16ms

Communication Time Processing Time Relay Settling Time

0ms 2ms 4ms 6ms 8ms 10ms

Close 1 Switch On Each Of 5 Cards

Operate 16 Switches On Each Of 5 Cards

12ms 14ms 16ms

Multiple SIMRC Operating Times Using Fast#1#2

#3#4

#5

Total Time

#1#2

#3#4

#5

Total Time

RS-232 (9600baud)

RS-232 (9600baud)

I2C

(100kbit)I2C

I2C

I2C

I2C

(100kbit)I2C

(100kbit)I2C

Command Execution TimingsThe graph below gives typical execution times for operating single relays and blocks of relays using both the I2C and RS-232 bus.


Page 4.3

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I2C-bus Operation

The protocol for I2C-bus operation is modelled on IEEE488.2, which is a well-proven and reliable standard. The use of command and query mnemonics, and the facility for obtaining extended response data from the unit are features intended to allow it’s use in more complex devices.

Transfer Rate and Hardware Protocols

Read or write access can be at any clock rate up to the standard limit of 100KHz. Normal I2C-bus transfer protocols apply.

Framing of Messages

A SIMRC frames messages with the START and STOP conditions, ie. a valid message must be contained between START and STOP. The SIMRC will register an error (CI) if an attempt is made to send a partial command, then re-address it and send the remainder of the command. A similar protocol applies to responses, where a RI error will be indicated if the entire response to a query is not read as a single message before the device is addressed to perform some other action.

Message Exchange Sequence: Commands

A SIMRC cannot buffer multiple I2C commands. Therefore, when a command has been written to a SIMRC, the master should follow up by reading the SIMRC’s Status Byte to determine if the command has executed, or if an error occurred. The Status Byte is not generated by the SIMRC until it’s internal operations (including any relay settling delay) are complete, so the master will be held in a wait state until this has happened.

Message Exchange Sequence: Queries

A SIMRC is capable, in response to specific queries, of returning data describing the nature of self-test errors etc. Such responses can be in the form of a single data byte, a fixed number of data bytes, or an indefinite number of data bytes terminated by a NULL byte. Response data bytes are restricted to the range 0x00 - 0x7F, in order that they can be differentiated from the Status Byte, which always has it’s MSB set. It is intended that response data will generally be composed of ASCII-coded textural information.

To read a fixed-length response, the master can execute the appropriate number of read operations (with ACK) to obtain the data bytes, then perform a terminating read (negative-acknowledge), which will acquire the Status Byte.

To read an indefinite-length response the master must read bytes with ACK until it reads a NULL byte, then perform a terminating read (negative-acknowledge), which will acquire the Status Byte.

In either case, if a returned byte is found prematurely having it’s MSB set, then that byte is the Status Byte, and it has been returned in lieu of data because an error has occurred. One or more other bits will flag the nature of the error.

Status Byte

Bit Data

7 (MSB) 6 5 4 3 2 1

0 (LSB)

SBI: Status Byte Indicator Bit - always set. Reserved for future use. Reserved for future use. Reserved for future use. RI: Response Interrupted. CI: Command Interrupted. EXE: Unexecutable command (e.g. bad data value). CME: Syntax error / unrecognised command.

Note: Interpretation of CME, EXE is similar to IEEE488.2.

I2C Commands and Queries

Commands and queries are coded as a two-character ASCII mnemonic followed by any necessary data bytes. The mnemonics are case-insensitive.

Command Mnemonics

Mnemonic Data

SB SC SO RS

Data bytes representing the desired switch pattern.1 data byte giving the number (1 thru N) of the switch to close.1 data byte giving the number (1 thru N) of the switch to open.None. Opens all relays.

Page 4.4



The number of data bytes required by the SB command depends on the number of outputs available on the particular module: a 32-output module requires 4 bytes, a 16-output module requires 2 bytes. Data bytes received are interpreted in descending order of significance; for example, for a 16-output module:

Byte 1: bit 7 = output 16 bit 0 = output 9 Byte 2: bit 7 = output 8 bit 0 = output 1

Query Mnemonics

Mnemonic Data Response

TS DI TY BV

0x00 or 0x01 None None None

Selftest pass/fail indication (1 byte).Selftest diagnostic info string (null terminated).Module ID string (null terminated).Module switch state string (null terminated).

*** Note *** The BV query is not available in SIMRC versions earlier than 1.00.

The TS data value determines if a selftest sequence is (value 0x01) or is not (value 0x00) to be executed prior to returning the result. For SIMRCs the selftest time is quite short, and the only significant difference if a selftest is executed is that all relays are left OFF.

Response Data

TS query: if selftest pass: 0x00 if selftest fail: non-zero failure code. The only such code currently returned by a SIMRC is 0x02, indicating a logic failure.

DI query: if selftest pass: “OK” if selftest fail: diagnostic information string

TY query: Module identification string, e.g. “SW160001” “SW” = module type “16” = module dimension (X) “00” = module dimension (Y), or special features code “01” = firmware release number

BV query: String containing an ASCII Hexadecimal representation of current switch pattern, eg. “403A” (for a 16-bit SIMRC).

I2C Address

The SIMRC is a read/write slave device, occupying 2 adjacent I2C-bus addresses: - address bit 0 = 0: write address - address bit 0 = 1: read address

When used in an I2C-bus subsystem with other devices, some devices may have a fixed I2C-bus address, or an address that can be selected from a limited number of options. SIMRCs can be configured to occupy any pair of I2C addresses to avoid conflict with such devices.

The remaining I2C address bits can be set by means of DIP switches and links as follows:

SW1-1 = bit 1 SW1-2 = bit 2 SW1-3 = bit 3 SW1-4 = bit 4 Jumper 5 = bit 5 Jumper 6 = bit 6 Jumper 7 = bit 7Switch ON or jumper fitted: address bit = 1Switch OFF or jumper omitted: address bit = 0

Alternatively the I2C address can be configured by setting all DIP switches and links OFF and wiring an appropriate pattern onto the I2C address pins of the SIMRC socket. This method ties the I2C address to the physical SIMRC connector, so that operating software can confirm (using the TY query) that the appropriate SIMRC type is fitted in that socket. Note that the address applied to the SIMRC pins is inverted, and the preferred method of setting it’s value is by connecting to ground only those pins to be taken logic ‘0’; the SIMRC has pullup resistors that assert logic ‘1’ on unconnected inputs. If it is desired to pull up these pins externally, it should be done via a resistor and not by a direct connection to +5V to avoid any danger of short-circuiting the power supply in the event of a SIMRC being installed with any switches or jumpers in the closed position.

Serious Protocol Violations

Although the majority of I2C-bus protocol violations are dealt with cleanly, some extreme violations may cause a SIMRC to hang the I2C-bus; it may only be possible to clear this condition by cycling power to the unit. This is due to limitations of the microcontroller hardware.


Page 4.5

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RS-232 OperationCommunication Standard and Handshaking

Communication settings are fixed at 9600 baud, 8N1.

Neither hardware (CTS/RTS) nor software (XON/XOFF) handshaking is employed bySIMRCs.

Data input is line buffered, full duplex, supporting backspace-and-delete.

Input line terminator is <CR>; output lines are terminated with <CR + LF>.

Any characters (other than <CR>) received when the device’s input buffer is full are ignored, and (when echo is enabled) are not echoed.

Any leading or trailing control or whitespace characters are generally ignored syntactically. Leading control or whitespace characters are echoed (when echo is enabled), but are not buffered.

No character-pacing delays are necessary.

Protocols

A simple protocol is employed for RS-232 operation. In general, any command or query produces a single-line response. Commands produce the response “OK” when completed successfully, or an error message (see below) if they fail. Queries produce a single-line response message, or an error message. The WH query is an exception, producing a multi-line response (perhaps in future the DU query may also do so), but they are the least likely to be used programmatically.

For programmatic control, a SIMRC can be operated by issuing a command or query, then awaiting (if character echo is enabled) two single-line responses. The first is the echoed command or query message; the second is the response message. If character echo has been disabled, only the response message is received.

The “OK” response to commands is not generated by the SIMRC until it’s internal operations (including any relay settling delay) are complete.

RS-232 Commands and Queries

Commands and queries are coded as a two-character ASCII mnemonic followed by any necessary data. The mnemonics are case-insensitive. Data must be separated from the mnemonic by a single <space> character.

Command Mnemonics

Mnemonic Data

SB SC SO RS EC

ASCII Hexadecimal representation of the desired switch pattern. 1 or 2 characters giving the number (1 thru N) of the switch to close. 1 or 2 characters giving the number (1 thru N) of the switch to open.None. Opens all relays. “0” or “1”. Turns serial character echo OFF/ON. Default = ON.

The size of the hexadecimal quantity required by the SB command depends on the number of outputs available on the particular module: a 32-output module requires a 32-bit value, a 16-output module requires a 16-bit value. Channel 1 is represented by the least significant bit of the data word.

Query Mnemonics

Mnemonic Data Response

TS DI TY WH BV DU

“0” or “1” None None None None

“0” or “1”

Selftest pass/fail indication value. Selftest diagnostic info string. Module ID string. Module Introductory message. Module switch state. Module relay test history string.

The information supplied by the WH query is also output at power-up.

The TS data value determines if a selftest sequence is (“1”) or is not (“0”) to be executed prior to returning the result. For a SIMRC the selftest time is quite short, and the only significant difference if a selftest is executed is that all relays are left OFF.

Response Data

TS query: if selftest pass: “0” if selftest fail: non-zero numeric failure code. The only such code currently returned by a SIMRC is “2”, indicating a logic failure.


Page 4.6



TY query: Module identification string, eg. “SW160001” “SW” = module type “16” = module dimension (X) “00” = module dimension (Y), or special features code “01” = firmware release number

WH query: Module introductory message, including firmware revision and I2C address setting.


DU query: Module relay test history string. This feature is not available on SIMRCs, and the message “N/A” is returned.

Error Messages

An error in a command or query message results in the return of an error message.

An error message consists of the “?” character, followed by a numeric code indicating the nature of the error.

Error messages are:-

?1 Command syntax error, unrecognised command etc. ?2 Command delimiter not <space> ?3 Bad hexadecimal digit ?4 Bad decimal digit ?5 Value out of range ?6 Trailing garbage

GeneralSIMRC Types

The card switching configuration is returned as the first element in the response to the TY query. Current types are:-

“SW” = uncommitted switches “MX” = multiplexer “MT” = matrix

For a matrix type, switches are numbered with the X-axis least significant, e.g. for type “MT080401” switch number 9 represents crosspoint X1, Y2.

Firmware Release Codes

A firmware release code is returned as the final element in the response to the TY query. A more detailed version code is contained in the RS-232 “WH” query response.

RS-232/I2C Jumpers

The jumper-pair labelled “232” and “I2C” determine which interface is accessible at the on-card miniature header. Both jumpers must be in the “232” position, or both in the “I2C” position. Connection of the I2C interface to the SIMM connector is unaffected by their setting.

Simultaneous RS-232/I2C Operation

Simultaneous operation via both the I2C and RS-232 interfaces causes SIMRCs to crash under some circumstances, particularly if intensive RS-232 traffic is interrupted by an I2C command. The reverse case (intensive I2C traffic interrupted by an RS-232 command) fails relatively infrequently. It is not intended that simultaneous operation should be supported.

Typical operating times

Single switch operation I2C-bus: 3ms @ SCL = 90KHz RS-232: 20ms

Status LED

The Status LED indicates that command processing is in progress: it illuminates when the unit receives the first byte of an instruction from whichever interface, and extinguishes when processing of the command is complete.

Circuit Considerations

With no relays energised, SIMRC power consumption is quite low. The most significant static loading on the SIMRC’s power supply is it’s power indicator LED, which of course cuts off below around 1.5V. This can lead to some unexpected problems in RS-232 operation. If there is no other significant loading on the SIMRC power supply, and RS-232 signals are present when SIMRC power is OFF, the RS-232 signals can source enough current into a SIMRC to ‘pump’ it to a point where the microcontroller may fail to boot correctly when SIMRC power is applied. If the presence of RS-232 signals with a SIMRC powered down is unavoidable, a load resistor (of around 120Ω, 0.25W) should be connected across the SIMRC’s power supply rails.


Page 4.7

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Programming examples

A good way to become familiar with operation is to use a serial terminal or Terminal Emulator program (such as Windows HyperTerminal) to communicate with a unit via it’s RS-232 port.

16-channel switch module

TY - get type info (typical response “SW160001”) SC 1 - close channel 1 SC 15 - close channel 15 SB FFFF - close all channels SO 1 - open channel 1 RS - open all channels

16-channel multiplexer module

TY - get type info (typical response “MX160001”) SC 1 - close channel 1 SC 15 - close channel 15 SB FFFF - close all channels SO 1 - open channel 1 RS - open all channels

8x4 matrix module

TY - get type info (typical response “MT080401”) SC 1 - close crosspoint (X = 1, Y = 1) SC 9 - close crosspoint (X = 1, Y = 2) SB FFFFFFFF - close all crosspoints SO 32 - open crosspoint (X = 8, Y = 4) RS - open all crosspoints

Page 4.8



1080 SIM Relay Card Controller

The SIM Relay Card Controller acts as an RS-232 to I2C-bus translator, allowing multiple SIM Relay Cards and/or other I2C devices to be controlled from a single RS-232 port. A set of general-purpose commands cover basic I2C-bus operations and can be used for communication with any I2C device. A further set of commands are specific to Pickering SIM Relay Cards.

RS-232 operation is fixed at 9600 baud, 8N1; neither hardware (eg. CTS/RTS) or software (XON/XOFF) handshaking is supported.

All commands are coded as a two-character ASCII mnemonic followed by any necessary data. The mnemonics are case-insensitive. Data must be separated from the mnemonic by a single <space> character.

General-purpose commands are:- EC <0|1> = Set serial echo OFF/ON (default = ON) AD <address> = Set the I2C slave address to communicate with SW = Issue START and current WRITE ADDRESS WB <byte> = Write byte to pre-addressed slave SR = Issue START and current READ ADDRESS RB = Read non-terminal byte from pre-addressed slave RT = Read terminal byte from pre-addressed slave ST = Issue STOP WR <byte> = Write a single byte to currently selected address (performs SW + WB + ST) RD = Read a single byte from currently selected address (performs SR + RT + ST) HE = Display Help information WH = Display device ID, version information

SIMRC commands are:- SB <data> = Set switches to hexadecimal pattern (16-bit or 32-bit, according to module type) SC <number> = Close the specified (decimal) switch SO <number> = Open the specified (decimal) switch RS = Open all switches DI = Diagnostic query TY = Type query BV = Show switch pattern *** see note below *** TS <byte> = Selftest queryThe SIMRC commands are identical to those used for direct communication with an individual SIMRC.

*** Note ***The BV query is not available in Model 1080 versions prior to 1.00, and will not function with SIMRC versions earlier than 1.00.

The TS data value determines if a selftest sequence is (value 0x01) or is not (value 0x00) to be executed prior to returning the result. For SIMRCs the selftest time is quite short, and the only significant difference if a selftest is executed is that all relays are left OFF.

All parameter values are hexadecimal unless specified otherwise.

The least significant bit of the <address> value supplied in the AD command is ignored. The read/write commands set/clear this bit as necessary when addressing a slave.

Response DataTS query: if selftest pass: “0” if selftest fail: non-zero numeric failure code. The only such code currently returned by a SIMRC is “2”, indicating a logic failure.


TY query: Module identification string, eg. “SW160001” “SW” = module type “16” = module dimension (X) “00” = module dimension (Y), or special features code “01” = firmware release number

WH query: Module introductory message, including firmware revision.

HE query: Help information message.



Page 4.9

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Error MessagesError messages consist of the “?” character, followed by a code letter indicating the nature of the error:- ?A = Address Unset - no slave address has been set ?S = Syntax error ?T = Trailing garbage ?U = Unrecognised command ?R = RS-232 bus error ?I = I2C bus error ?X = Defective status byte (top bit not set) ?Y = Status byte indicates error ?V = Value out of range

Technical Details

RS-232 Input

RS-232 input is line-buffered. The buffer accepts up to 11 significant characters. When the buffer becomes full all subsequent characters except <CR> and <BS> are ignored, and are not echoed (even when echo is enabled). Input is interpreted on receipt of a terminating <CR>.

Null characters are ignored entirely wherever they occur.

Any number of leading whitespace or control characters (ASCII codes 1 thru 32) are ignored and are not buffered, though they are echoed (if echo is enabled).

Any number of buffered trailing whitespace or control characters (ASCII codes 1 thru 32, though <CR> and <BS> are not buffered in any case) are ignored when the command is interpreted.

The <BS> character performs a backspace-and-delete function.

No character-pacing delays are necessary.

RS-232 Output

Output is unbuffered.

Newlines are output as <CR><LF>.

The “OK” response message is not generated until all pending operations have completed. In the case of a switching operation, switch contacts are guaranteed to have stabilised prior to generation of the “OK” response.

Status LEDThe Status LED indicates that command processing is in progress: it illuminates when the unit receives the first byte of a command, and extinguishes when processing of the command is complete.

The I2C-busResistors are required to pull SDA and SCL lines up to +5V. Pullups are not incorporated on the 1080 card so that the user can supply values to suit his particular environment. The minimum value allowed is about 1K8. The value that is actually necessary depends upon how much capacitance is present on the I2C-bus; for a typical set-up a value of 4K7 is usually satisfactory. The only drawback of using a value lower than is strictly necessary is increased current drain during I2C-bus activity, which is seldom a significant consideration.

Each SIMRC (and any other device connected to the bus) must have a unique I2C address.

I2C-bus operation is at a fixed clock rate, which is around 30KHz.

The START WRITE and START READ commands will function correctly as RESTART WRITE and RESTART READ respectively.

If a slave asserts a wait-state (SCL hold-off), the unit can wait INDEFINITELY for SCL to be released: there is no time-out feature.

No attempt is made to track the state of an addressed device, so it is possible to execute sequences of primitive commands that violate I2C-bus protocols, resulting in the “?I” error. Serious protocol violations can hang the I2C-bus, and recovery may only be possible by cycling power to the system.

Although the primitive commands permit communication with other I2C-bus devices, the unit is not primarily intended for use as a general-purpose I2C-bus Master. Performance limitations might cause problems with some I2C-bus devices. Also, in a ‘proper’ I2C-bus environment certain bus addresses are reserved for special purposes. Multi-master operation is not supported.

Page 4.10



Typical SIMRC operating timesSingle switch operation: 25ms approx.

Programmatic OperationAll commands related to I2C-bus activity generate a single-line response (either “OK” or a data value, or an error message). The converter can therefore be operated programmatically using the following handshake protocol: - issue a command - read back 1 line (the echoed command - unnecessary if echo is OFF) - read back 1 line (the response)Readback (and checking) of the echoed command offers greater security, but throughput can be increased somewhat by disabling it.

Circuit ConsiderationsWith no relays energised, SIMRC power consumption is quite low. The most significant static loading on the SIMRC’s power supply is it’s power indicator LED, which of course cuts off below around 1.5V. This can lead to some unexpected problems in RS-232 operation. If there is no other significant loading on the SIMRC power supply, and RS-232 signals are present when SIMRC power is OFF, the RS-232 signals can source enough current into a SIMRC to ‘pump’ it to a point where the microcontroller may fail to boot correctly when SIMRC power is applied. If the presence of RS-232 signals with a SIMRC powered down is unavoidable, a load resistor (of around 120Ω, 0.25W) should be connected across the SIMRC’s power supply rails.

Programming examplesA good way to become familiar with operation is to use a serial terminal or Terminal Emulator program (such as Windows HyperTerminal) to communicate with the system. For an example system containing the following modules: I2C address 0x02 = 16-channel switch 0x04 = 16-channel multiplexer 0x06 = 8x4 matrix

AD 02 - select address 0x02 TY - get type info (typical response “SW160001”) SC 1 - close channel 1 SC 15 - close channel 15 SB FFFF - close all channels SO 1 - open channel 1 RS - open all channels AD 04 - select address 0x04 TY - get type info (typical response “MX160001”) SC 1 - close channel 1 SC 15 - close channel 15 SB FFFF - close all channels SO 1 - open channel 1 RS - open all channels AD 06 - select address 0x06 TY - get type info (typical response “MT080401”) SC 1 - close crosspoint (X = 1, Y = 1) SC 9 - close crosspoint (X = 1, Y = 2) SB FFFFFFFF - close all crosspoints SO 32 - open crosspoint (X = 8, Y = 4) RS - open all crosspoints

SECTION 5 - PIN OUTS

Page 5.1

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SECTION 5 - CONNECTOR PIN OUTS

Figure 5.1 provides the connector positioning for the SIMRC1010/1020 relay/multiplexer SIM card Figure 5.2 shows the connector positioning for the SIMRC1030 matrix SIM card.

Figure 5.1 - SIMRC 1010/1020 Connector Position

1

36

37

72

RS232/ICONNECTOR

2C

LOCATIONHOLE

PIN 1CUT-OUT

12

34

ON

I2CADDRESSSWITCH

56

7

I2CADDRESSJUMPERS

STATUSLED

GREEN

POWERLED

RED

LOCATIONHOLE

72-P

IN S

IM C

ON

NE

CT

ION

INTERFACESELECTIONJUMPERS

I2C

232

1

Page 5.2

SECTION 5 - PIN OUTS pickering


1

36

37

72

RS232/ICONNECTOR

2C

LOCATIONHOLE

PIN 1CUT-OUT

I2CADDRESSSWITCH

I2CADDRESSJUMPERS

STATUSLED

GREEN

POWERLED

RED

LOCATIONHOLE

12

34

ON

72-P

IN S

IM C

ON

NE

CT

ION

56

7

I2C

232

1

INTERFACESELECTIONJUMPERS

Figure 5.2 - SIMRC 1030 Connector Positions

SECTION 5 - PIN OUTS

Page 5.3

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I2C/RS232 ConnectorThe SIM Relay Card has a configurable I2C/RS-232 port (9600 baud, 8 bit, no parity, no handshaking). This is provided on a 4 pin Molex type connector as shown in Figure 5.3. (a jumper on the PCB selects RS-232 or I2C use for this port see Figure 5.4). An adapter lead to allow use with a standard 9 pin D-type is available.

Note: If more than one SIM card is to be controlled they should be set to I2C interface. If RS232 is then required a separate module is available to provide simple RS232 to I2C conversion.

I2C Address SettingThe I2C address for the board is set with DIP switches and jumpers. Bits 1 to 4 are set with a four way DIP switch and bits 5 to 7 are set with three jumper links. Placing a switch in the on position or inserting a jumper sets the bit to 1. Turning a switch off or leaving a jumper open sets the bit to zero. In this way a unique address can be set for the board in the host system, an example is shown in Figure 5.5.

All 7 address bits are also available on the 72-pin SIM connector, allowing the I2C address to be read from the motherboard.

1 2 3 4 Pin Number I2C Mode RS232 Mode

1 2 3 4

5V SCL SDA

I2C Gnd

5V Rx Data Tx Data

RS232 Gnd

Figure 5.3 - I2C/RS232 Port Pinout

Figure 5.5 - I2C Address Switch Setting

I2C/RS232 Port SelectionJumpers on the board select the mode for the 4-pin Molex control port connector. Both jumpers must be moved to the left to enable I2C communication or both jumpers moved to the right for RS232 as shown in Figure 5.4. The position of the links does not affect the operation of the I2C port connections on the 72-pin SIM connector.

1 2 3 4

ON

765I2C

232

Set for I C Port Operation 2

1 2 3 4

ON

765I2C

232

Set for RS232 Port Operation

State Shown = $54

1 2 3 4

ON

Bit

1 ($

02)

Bit

2 ($

04)

Bit

3 ($

08)

Bit

4 ($

10)

765

Bit

7 ($

80)

Bit

6 ($

40)

Bit

5 ($

20)

I2C

232

Figure 5.4 - RS232/I2C Port Selection Jumpers

Page 5.4

SECTION 5 - PIN OUTS pickering


Pinout Connections For All SIMRC Cards

SECTION 6 - GENERAL DESCRIPTION

Page 6.1

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108mm

23mm

39mm


Mechanical Description

The SIMRC 1000 series of relay modules conforms to the 72-pin SIM form factor, the same as SIMM memory modules for computers. Each module comprises the following:

• 4-layer PCB with dimensions shown in Figure 6.1 below

• 72-pin gold plated SIM edge connector

• PIC 8-Bit RISC Microcontroller

• Relay drivers

• 16 Pickering Reed Relays (32 for the 1030 Matrix card)

• 4-pin Molex Datamate plug for I2C or RS232 control

• 4-way DIP switch and 3-way jumper for I2C address configuration

• Green Status LED

• Red Power LED

Figure 6.1 - SIMRC Dimensions For 1010/1020 Modules (lower) and 1030 Module (upper) Note: Overall height for all variants is 12mm.

Page 6.2

SECTION 6 - GENERAL DESCRIPTION pickering


+5V

GND

57

72

71

72

71

72

71

1

1

1

2

2

2

1091-001

1091-001

1091-001

1K8

1K8

100R

Daisy-Chaining ModulesThe I2C ports of the SIMRC modules can be daisy-chained together to allow multiple cards to be programmed by one host controller. To do this the cards should be set with different addresses and the 72-pin connector wired as shown in Figure 6.2. The description of the wiring is as follows:

Pins 57 (GND) and 64 (I2C GND) on all SIMs are connected to GND.

Pins 58 (+5V) and 60 (Vrel) on all SIMs are connected to +5V.

Pin 62 (SDA) on all SIMs are connected together, then connected through a 1k8 pull-up resistor to +5V.

Pin 63 (SCL) on all SIMs are connected together, then connected through a 1k8 pull-up resistor to +5V.

Pin 72 (GND) on all SIMs are connected together, then connected through a 100R load resistor to +5V. The 100R resistor shunting the 5V supply avoids a problem where an active RS-232 connection can pre-charge the device to a point where it fails to boot properly.

Note: If RS232 control is needed of multiple SIM cards this should be done using a single RS232 to I2C Converter Module 1080-001.

Figure 6.2 - Daisy-Chaining the I2C Ports of SIMRC Modules


Page 6.3

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2 x hole Ø2.7mmfor 2.5mm mounting screws

13.0

116.0

3.0

3.0 3.0

PCBUser Connections:• switch path• power• communication

SIM Connector

2.542.54

7.62 7.62

Adjacent PCB

9.0

Figure 6.3 - Small Outline PCB with SIM Connector, type 1091-001

Carrier CardsSingle SIM Small Outline Carrier Card

Pickering Interfaces have produced a small PCB to allow users to work with SIMRC cards - product code 1091-001. It comprises a SIM Socket fitted to a PCB with terminals suitable for solder connection. Two holes are provided for mounting the PCB, as shown in Figure 6.3.

A = Hole Ø2.5mmB = Hole Ø2.2mm

35.0

105.0

5.25

6.0 6.0

PCBSMB Connectors

SIM Connector

5.25

56.5 56.52.0

2.0

A

A

A

A

B B

B B

Control Port

Headers forInterconnectingMultiplexer banks

for connection toRF multiplexer banks

Figure 6.4 - RF Adapter PCB for RF Reed Modules, type 1092-001

Single SIM RF Carrier Card

Also available is an RF adapter card suitable for operating the 16 x SPST Screened Reed Relay module (1010-R-16-1RF-5/1D) at high frequencies in multiplexer configurations - product code 1092-001. It brings the relay connections from the 72-pin connector onto SMB sockets and has jumper connections for cascading 1 to 4 multiplexers into larger configurations. This is shown in Figure 6.4, see the 1092 data sheet for more information.

Page 6.4



Programmable Relay Switching Systems

Pickering Interfaces www.pickeringtest.com

1050SIM Relay Card Carrier

Easy Integration of SIMRC Modules for Custom Applications

Utilizes SIMRC Modules From The Series 1010/1020/1030

RS-232 Interface Standard Subminiature 50-way

and 9-way D-type Connectors Allows Cascading of Multiple Carriers

for Building Switching Networks Eurocard Format Soft Front Panel Supplied CVI/LabVIEW/DLL Support

SIM RELAY CARD CARRIER1050

ISSU

E 2

.3 M

AR

201

3

The SIM Relay Carrier 1050 simplifies the custom integration of SIMRC switching modules. No additional PCB design is necessary. Due to the Eurocard format the carrier can be fitted into a standard case or can be mounted in a 19” rack with side rails.Plug in standard SIM Relay Cards and control your switch application with the provided Soft Front Panel without any additional programming.

General Specification

Can be fitted with a maximum of 3 switching cards from the 1010/1020/1030 SIMRC range. The fourth module position is dedicated for a 1080-001 RS-232 to I2C converter module.

Soft Front Panel

The supplied Soft Front Panel allows easy control of individual relays either in binary (button) or hex input.

One panel controls all SIMRC types, there is also automatic module type detection and relay status read back.

Programming

As well as the Soft Front Panel, the SIMRC Carrier is supplied with a Windows 2000/XP driver (CVI FP/LabVIEW LLB/DLL) which performs the following functions:

• Communication port handling

• Card identification

• Write/Read bit to card (to operate an individual relay)

• Write/Read relay pattern

Soft Front Panel Supplied With The Card Carrier

1050-002 SIM Relay Card Carrier Kit (1050-001 SIM Relay Card Carrier With

1080-001 Serial Interface Module Fitted)

Figure 6.5 - 1050-002 SIM Relay Card Carrier Kit (1050-001 SIM Relay Card Carrier With 1080-001

Serial Interface Module Fitted)

Figure 6.6 - Soft Front Panel Supplied With The Card Carrier


Page 6.5

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SIM REED RELAY CARDS SIMRC 1000Programmable Relay Switching Systems

Pickering Interfaces www.pickeringtest.com

Product Order Codes

SIM Relay Card Carrier PCB Including mating connectors 3xmale 50-way D-types and 1xfemale 9-way D-type.

1050-001

SIM Relay Card Carrier Kit Including RS-232 to I2C Converter (1080-001) and mating connectors.

1050-002

RS-232 to I2C Converter Module 1080-001

Accessories Order Codes

SIM Relay Card Carrier Enclosure 1050-901

Power Supply For Enclosure 1050-902

Power Supply Specification

+5V DC, protected with a 1.25A fuse (TR5 type).

Current consumption (no SIMRC Modules, only 1080-001 installed): Typically 25mA.

Maximum current (fully populated, no relays energized): 85mA.

Maximum current per energized relay: 18mA.

Width and Dimensions

Eurocard format, maximum height between 32mm and 48mm (dependent upon installed SIM Relay Cards).

Connectors

Switching signals via 50-way female subminiature D-type connectors (each SIM Relay Card has its own connector), RS-232 interface via a 9-way female subminiature D-type connector. Power supply via 2-pole screwed Phoenix-Contact connector type. Mating connectors are provided.

Installing the RS-232 to I2C Converter

To install the 1080-001 converter on to the carrier, plug the module into the socket marked “Serial Converter Interface” and connect the RS-232 cable as shown in the picture below.

SIMRC Module Address Setting

A detailed description of the DIP switch address settings can be found in the SIMRC 1000 User Manual, Section 5 “I2C Address Setting”.

Operating/Storage Conditions

Operating Conditions

Operating Temperature: Humidity: Altitude:

0°C to 55°C Up to 90% non-condensing 5000m

Storage and Transport Conditions

Storage Temperature:Humidity: Altitude:

-20°C to +75°C Up to 90% non-condensing 15000m

Installation Of The 1080-001 Converter Module on to The Card Carrier

1050-901 SIM Relay Card Carrier Enclosure

1050-902 Power Supply For

SIM Relay Card Carrier Enclosure

Latest DetailsPlease refer to our Web Site for Latest Product Details.www.pickeringtest.com

Figure 6.7 - Installation Of The 1080-001 Converter Module on to The Card Carrier

Page 6.6


SIM REED RELAY CARDS SIMRC 1000www.pickeringtest.com E-Mail [email protected]

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5 32 — B2 S2 3 3.1 3 X3 X3.1 X3 X3 X3.1 X3

6 15 C2 C2 C2 — 3.2 S — X3.2 S — X3.2 S

7 47 A3 A3 A3 4 4.1 4 X4 X4.1 X4 X4 X4.1 X4

8 31 — B3 S3 — 4.2 S — X4.2 S — X4.2 S

9 14 C3 C3 C3 5 5.1 5 X5 X5.1 X5 X5 X5.1 X5

10 46 A4 A4 A4 — 5.2 S — X5.2 S — X5.2 S

11 30 — B4 S4 6 6.1 6 X6 X6.1 X6 X6 X6.1 X6

12 13 C4 C4 C4 — 6.2 S — X6.2 S — X6.2 S

13 45 A5 A5 A5 7 7.1 7 X7 X7.1 X7 X7 X7.1 X7

14 29 — B5 S5 — 7.2 S — X7.2 S — X7.2 S

15 12 C5 C5 C5 8 8.1 8 X8 X8.1 X8 X8 X8.1 X8

16 44 A6 A6 A6 — 8.2 S — X8.2 S — X8.2 S

17 28 — B6 S6 9 9.1 9 — — — — — —

18 11 C6 C6 C6 — 9.2 S — — — — — —

19 43 A7 A7 A7 10 10.1 10 — — — — — —

20 27 — B7 S7 — 10.2 S — — — — — —

21 10 C7 C7 C7 11 11.1 11 — — — — — —

22 42 A8 A8 A8 — 11.2 S — — — — — —

23 26 — B8 S8 12 12.1 12 — — — — — —

24 9 C8 C8 C8 — 12.2 S — — — — — —

25 41 A9 A9 A9 13 13.1 13 — — — — — —

26 25 — B9 S9 — 13.2 S — — — — — —

27 8 C9 C9 C9 14 14.1 14 — — — — — —

28 40 A10 A10 A10 — 14.2 S — — — — — —

29 24 — B10 S10 15 15.1 15 Y1 Y1.1 Y1 Y1 Y1.1 Y1

30 7 C10 C10 C10 — 15.2 S — Y1.2 S — Y1.2 S

31 39 A11 A11 A11 16 16.1 16 Y2 Y2.1 Y2 Y2 Y2.1 Y2

32 23 — B11 S11 — 16.2 S — Y2.2 S — Y2.2 S

33 6 C11 C11 C11 — — — — — — Y3 Y3.1 Y3

34 38 A12 A12 A12 — — — — — — — Y3.2 S

35 22 — B12 S12 C C.1 C — — — Y4 Y4.1 Y4

36 5 C12 C12 C12 — C.2 S — — — — Y4.2 S

37 37 A13 A13 A13 — — — — — — — — —

38 21 — B13 S13 — — — — — — — — —

39 4 C13 C13 C13 — — — — — — — — —

40 36 A14 A14 A14 — — — — — — — — —

41 20 — B14 S14 — — — — — — — — —

42 3 C14 C14 C14 — — — — — — — — —

43 35 A15 A15 A15 — — — — — — — — —

44 19 — B15 S15 — — — — — — — — —

45 2 C15 C15 C15 — — — — — — — — —

46 34 A16 A16 A16 — — — — — — — — —

47 18 — B16 S16 — — — — — — — — —

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Page 6.7

pickering

SIM REED RELAY CARDS SIMRC 1000www.pickeringtest.com E-Mail [email protected]

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Dimensions Of The SIM Relay Card Carrier

Schematic Diagram Of The Serial Data And Power Connections Of The SIM Relay Card Carrier

Figure 6.8 - Dimensions Of The SIM Relay Card Carrier

Figure 6.9 - Schematic Diagram Of The Serial Data And Power Connections Of The SIM Relay Card Carrier

Page 6.8



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Page 6.9

pickering


1050-901 SIM Relay Card Carrier Enclosure installation

1. Unscrew the enclosure top cover’s retaining screws and remove the cover.

2. Unscrew the ‘Card Carrier’ fixings (pillars and screws), connect the 16mm female pillars to the enclosure’s fitted 6mm male pillars and screw the carrier to them.

3. Connect the power wires from the DC power entry to the screw terminal on the PCB-J10 Figure 6.8 (black wire: negative - red wire: positive).

4. Plug the daisy chaining (cascade) wire assembly into connector J9-Daisy Chaining Connector - male DB9 - on the PCB Figure 6.8.

5. Plug the LED’s flying lead to the header on the PCB. On some older revision carriers an LED is fitted to the board and there is no header available - in this case the board LED can be unsoldered and the panel mount LED leads can be soldered directly to the board in its place, taking care to correctly orientate the leads.

6. Plug the SIM relay cards and converter module into the card carrier.

7. Refit the enclosure top cover.

The figure below shows the bottom view of the enclosure with the locations and the dimensions of the Card Carrier fixing holes.

4 x 4.30 52.00

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Figure 6.10 - Bottom View of SIM Relay Card Carrier Enclosure

Page 6.10



Figure 6.12 - Industry Standard 72 Pin SIM Connector, type 1090-001

Control Cable

Pickering can supply an RS232 interface cable (model number 1081-001) that allows connection of the 4-pin control port on a SIM Relay Card or Converter Module to a standard 9-pin D-type suitable for connecting to a host PC

72-Pin SIM Connector

Also Pickering can provide a standard 72-pin SIM connector for the user to fit to their own motherboard as shown in Figure 6.12. (model number 1090-001).

Figure 6.11 - Board Layout for 1080-001 RS-232 to I2C Converter Module

Support ProductsRS-232 to I2C Converter Module

To control the SIM cards and to assist in system debugging Pickering can supply an RS-232 to I2C converter module (model number 1080-001). It allows a computer with an RS-232 port to talk to a motherboard loaded with any number of I2C SIM Relay Cards up to a maximum of 128. The method of interconnecting multiple SIMRC modules is shown at the begining of this section under “Daisy-Chaining Modules”. The different options for communicating with the SIMRC modules is shown in Section 3.

The 1080-001 module uses the same PCB as the 1010 module, but with no relays fitted (see Figure 6.11 below). The pin-outs for power and communication are the same as the other modules so it can easily be integrated into a system mother board with other SIM relay cards. The interface select jumpers are fitted in the RS-232 position and the address select switches and jumpers remain in the off or unfitted position. RS-232 communication from the host computer is via a 4-way Molex connector, in the same way as RS-232 communication is carried out with a single SIM relay module.

For information on programming a multiple SIMRC system using the 1080-001 converter module, see section 4

Page 7.1

pickering


SECTION 7 - WARNINGS AND CAUTIONS

WARNING - DANGER OF ELECTRIC SHOCK

THIS MODULE MAY CONTAIN HAZARDOUS VOLTAGES. BEFORE REMOVING THE MODULE FROM THE RACK REMOVE ALL SUPPLIES.

WARNING – HAZARDOUS ENVIRONMENTS

environments, for example in explosive atmospheres. If the product is to be used in hazardous environments we recommend that the user ensures

suitable protective measures are taken.

CAUTION – Handling of Electrostatic-Sensitive Semiconductor Devices

Certain semiconductor devices used in this equipment are liable to damage due to static voltage. Observe the following precautions when handling these devices in their unterminated state, or sub-units containing these devices:

1. Persons removing sub-units from an equipment using these devices must be earthed by a wrist strap and a resistor at the point provided on the equipment.

2. Soldering irons used during the repair operations must be low voltage types with earthed tips and isolated from the mains voltage by a double insulated transformer.

3. Outer clothing worn must be unable to generate static charges.

4.anti-static bags.Printed Circuit Boards (PCBs) fitted with these devices must be stored and transported in

This product is not specifically designed for use in hazardous

Page 7.2

pickering



Documents

pickering User ManualPage 1 pickering SIM REED RELAY CARDS SIMRC 1000 Issue 4.12 April 2013 User Manual SIMRC 1000 Series (Model Nos. 1010/1020/1030) and Accessories pickering SIM