Serial Link Isolator Units - Hitachi Rail · 2019. 3. 25. · The RS-232/423 Serial Isolator Unit protects RS-232/RS-423 type communication lines between the MicroLok II CPU PCB or

SM 1D2.0004 1000 Technology Drive, Pittsburgh, PA 15219

645 Russell Street, Batesburg, SC 29006

Serial Link Isolator Units

Notice This module is one of a series of modules that describe the

components of the MicroLok II system.


Copyright 2019 1D2.0004 Rev. 2, March 2019 ii

Proprietary Notice This document and the information contained therein are confidential – the disclosure or other communication, copying, reproduction and any use whatsoever is forbidden without the written authorization of Hitachi Rail STS USA, Inc.

Important Notice STS USA constantly strives to improve our products and keep our customers apprised of changes in technology. Following the recommendations contained in the attached service manual will provide our customers with optimum operational reliability. The data contained herein purports solely to describe the product, and does not create any warranties.

Within the scope of the attached manual, it is impossible to take into account every eventuality that may arise with technical equipment in service. Please consult an STS USA local sales representative in the event of any irregularities with our product.

STS USA expressly disclaims liability resulting from any improper handling or use of our equipment, even if these instructions contain no specific indication in this respect. We strongly recommend that only approved STS USA spare parts are used as replacements.

© Property of Hitachi Rail STS USA, Inc., 2014 all rights reserved 1000 Technology Drive, Pittsburgh, PA USA 15219-3120

645 Russell Street, Batesburg, SC 29006 sts.hitachirail.com


Copyright 2019 1D2.0004 Rev. 2, March 2019 iii

Revision History REV ISSUE DATE REVISION DESCRIPTION

1 April 2014 Initial release

2 March 2019 Hitachi Rail STS Branding


Copyright 2019 1D2.0004 Rev. 2, March 2019 iv

Table of Contents 1. SERIAL LINK ISOLATOR UNITS ..................................................................................................... 1-1

1.1. General Information .................................................................................................................. 1-1 1.2. Operation .................................................................................................................................. 1-2

1.2.1. RS-232/423-Compatible Serial Isolator ........................................................................ 1-3 1.2.2. ATCS Radio-Compatible Serial Isolators ..................................................................... 1-3 1.2.3. Triple Isolation Serial Isolator ....................................................................................... 1-3

1.3. Rack Mount Panel .................................................................................................................... 1-4 1.4. Adapter PCB ............................................................................................................................. 1-5 1.5. User Interface ........................................................................................................................... 1-5 1.6. Serial Isolator Unit Specifications ............................................................................................. 1-6 1.7. PCB Addressing and Communication ...................................................................................... 1-7 1.8. I/O Interface .............................................................................................................................. 1-7 1.9. System Applications ............................................................................................................... 1-16 1.10. Configuration Options ............................................................................................................. 1-21

2. TECHNICAL SUPPORT .................................................................................................................... 2-1


Copyright 2019 1D2.0004 Rev. 2, March 2019 v

List of Figures Figure 1-1. RS-232/423 Serial Isolator N16401101 Detail ....................................................................... 1-1 Figure 1-2. ATCS Radio Serial Isolators N16404701 & N16404702 Detail .............................................. 1-2 Figure 1-3. RS-232/423 Triple Isolated Serial Isolator N16401103 Detail ................................................ 1-2 Figure 1-4. Triple Isolation Serial Isolator Connector Label ...................................................................... 1-4 Figure 1-5. Rack-Mount Panel (M16404901) for ATCS Radio Serial Isolators ........................................ 1-4 Figure 1-6. Adapter PCB (N39902601) for the ATCS Radio Serial Isolator RS-422

to EIA/TIA-232 (DCE) .......................................................................................................... 1-5 Figure 1-7. RS-232/423 Serial Isolator Typical Wiring Diagram ............................................................... 1-8 Figure 1-8. I-LOK to Serial Isolator Cable N16919401 ........................................................................... 1-10 Figure 1-9. E-LOK to Serial Isolator Cable N16919601 .......................................................................... 1-10 Figure 1-10. MLK II Port 3 via CPU Cable N16915601 to Serial Isolator Cable N16919701 ................. 1-11 Figure 1-11. GEN II Port 3 via CPU Cable N16916801 to Serial Isolator Cable N32500301 ................ 1-12 Figure 1-12. Serial Isolator to Rugged Server RS400 Cable N16919501 .............................................. 1-12 Figure 1-13. GEN II Ports 3 and 4 to Isolator Serial Isolators Cable N16921701 .................................. 1-13 Figure 1-14. Serial Isolator ATCS DB25F to Radio DB25M Cable N16917201 ..................................... 1-14 Figure 1-15. Serial Isolator ATCS DB25F to Radio ATCS MIL-SPEC Cable N16919901 ..................... 1-15 Figure 1-16. Serial Isolator DB25M to Radio WCM RJ-45 Cable N16920701, 02, and 03 ................... 1-16 Figure 1-17. Typical Microlok II Master or Slave to RFL Serial Modem Interface RS-232

Port 4 with Serial Isolator (Microlok or Genisys Protocol) ................................................. 1-17 Figure 1-18. Typical Microlok II Master or Slave to RFL Serial Modem Interface RS-232

Port 3 with Serial Isolator (Microlok or Genisys Protocol) ................................................. 1-17 Figure 1-19. Typical Microlok II Master or Slave Serial Interface RS-232 Port 4 with

Serial Isolator (Microlok or Genisys Protocol) ................................................................... 1-18 Figure 1-20. Typical Microlok II Master to Microlok II Slave Serial Interface RS-423

Port 3 with Serial Isolator (Microlok Protocol) ................................................................... 1-19 Figure 1-21. Typical ATCS WIU Protocol Radio Connection .................................................................. 1-20 Figure 1-22. Microlok II Vital and Non-Vital Serial Communications ...................................................... 1-21

List of Tables Table 1-1. Serial Link Isolator Units .......................................................................................................... 1-1 Table 1-2. RS-232/423 Serial Isolator Specifications ............................................................................... 1-6 Table 1-3. ATCS Radio-Compatible Serial Isolator Specifications ........................................................... 1-6 Table 1-4. RS-232 Triple Isolator Specifications....................................................................................... 1-6 Table 1-5. Serial Link Isolator Unit Connector Cables .............................................................................. 1-9


Copyright 2019 1D2.0004 Rev. 2, March 2019 vi


Copyright 2019 1D2.0004 Rev. 2, March 2019 1-1

1. SERIAL LINK ISOLATOR UNITS

1.1. General Information

Serial Link Isolator Units are used for data channel protection. See Table 1-1for the part numbers and application of the Serial Link Isolators.

Table 1-1. Serial Link Isolator Units

STS USA Part No. Application Figure Reference

N16401101 RS-232/423 Serial Isolator Figure 1-1

N16404701 ATCS Radio Serial Isolator: RS-422 to EIA/TIA-232 (DCE) Figure 1-2

N16404702 ATCS Radio Serial Isolator: EIA/TIA-485 to EIA/TIA-232 (DCE) Figure 1-2

N16401103 RS-232/423 Triple Isolated Serial Isolator Figure 1-3

UNION SWITCH & SIGNAL645 RUSSELL ST.BATESBURG, SC 29006

MICROTRAX IN

POWER

MICROLOK IN

(FEMALE CONN)RECEPT.

BATT -

BATT+

(MALE CONN)PLUG

1D2.

0004

.040

1.00

BATTERY TEMINALS

SERIAL PORT CONNECTORS

Figure 1-1. RS-232/423 Serial Isolator N16401101 Detail



(MALE CONN)PLUG


CONNECTOR J2

CONNECTOR J1

TX. DATA REC. DATA

INP

UT

CO

NN

J1

RS

-485

INPU

TS O

R O

UTP

UTS

S/N XXXXXXXXX

P/N XXXXXXXXX

XXXXXXXXX

BATESBURG, SC 29006645 RUSSELL ST.

UNION SWITCH & SIGNAL INC.

MADE IN USA

1D2.

0004

.040

2.00

25-PIN PORTS (2)

LEDS

Figure 1-2. ATCS Radio Serial Isolators N16404701 & N16404702 Detail

UNION SWITCH & SIGNAL645 RUSSELL ST.BATESBURG, SC 29006

CONNECTOR 1

POWER


BATT -

BATT+

(MALE CONN)PLUG

CONNECTOR 2

BATTERY TERMINALS

SERIAL PORTCONNECTORS

1D2.

0004

.042

2.00 ISOLATOR LABEL

Figure 1-3. RS-232/423 Triple Isolated Serial Isolator N16401103 Detail

1.2. Operation

The MicroLok II serial isolators are designed to protect data channels from undesirable transient signals or voltages that might otherwise corrupt transmitted or received data.

Several models of serial isolators are available. Refer to Table 1-1, Figure 1-1, Figure 1-2, and Figure 1-3.

MicroLok is a registered trademark of Hitachi Rail STS USA, Inc.



1.2.1. RS-232/423-Compatible Serial Isolator

The RS-232/423 Serial Isolator Unit protects RS-232/RS-423 type communication lines between the MicroLok II CPU PCB or CSI PCB and the external code system from signal voltage transients. The unit operates from signal battery and provides isolation between the host system and the serial code line, RFL carrier, remote MicroLok II, or modem. Battery for the isolator unit must be the same battery used by the host system. The unit also provides isolated ±12V to power the modem, if required. The RS-232 unit accepts communications up to 9600 baud.

The RS-232/423 Serial Isolator is contained in an assembled high impact plastic, two-piece case designed for four-point mounting on a rack panel or other suitable surface. Data cabling is attached on two 25-pin “D” connectors. Unit operating power is connected on a two-terminal screw plug.

1.2.2. ATCS Radio-Compatible Serial Isolators

The ATCS radio-compatible Serial Isolator provides transient signal protection on Motorola MCP radio-based non-vital serial communications links with MicroLok II. Two versions of this isolator unit are available, including a unit for an RS-422 to EIA/TIA-232 (DCE) interface, and a second unit for EIA/TIA-485 to EIA/TIA-232 (DCE) interface. The interface is isolated from input to output at 2000VAC RMS. The RS-422/232 unit accepts communications up to 9600 baud. The RS-485/232 unit works with faster 19200 baud communications typically required for this interface. Isolator unit power is supplied over the MicroLok II CPU or CSI PCB link, depending on the application.

The ATCS Radio Serial Isolator is contained in a high impact plastic, two-piece case designed for four-point mounting on a rack panel or other suitable surface. Data cabling is attached by two 25-pin "D" connectors on the unit’s top cover.

1.2.3. Triple Isolation Serial Isolator

The Triple Isolation Serial Isolator protects RS-232 communication lines between the MicroLok II CPU (DTE equipment) and the external code system (DCE equipment/communication equipment/modem) from signal voltage transients and from the signal battery. The unit operates from signal battery and provides 1500 VAC RMS isolation between the host system and the serial code line, RFL carrier, remote MicroLok II, and Modem. Both the MicroLok II 25-pin D connector and the modem communication connector inputs and outputs are isolated from each other and to the signal battery by 1500 VAC RMS for one minute. The Triple Isolation Serial Isolator unit baud rates are 1200, 2400, 4800, 9600, and 19200.

Data cabling is attached to two 25-pin "D" connectors. The Triple Isolation Serial Isolator unit is contained within a high-impact plastic case, two-piece case designed for four-point mounting on a rack panel or other suitable surface.



NOTE

Certain pins of the male and female DB-25 connectors on the isolator are tied together. A label (Figure 1-4) lists the tied-together pins is affixed to the side of the isolator. Be aware of these pins when making wiring connections.

1D2.

0004

.042

3.00

Figure 1-4. Triple Isolation Serial Isolator Connector Label

1.3. Rack Mount Panel

A 19-inch rack-mounted micarta panel (M16404901) is available that can contain up to three ATCS Serial Isolator units (see Figure 1-5). No hardware is supplied. Use twelve ¾" long 10-32 pan head screws, stainless steel, and twelve 10-32 nuts, stainless steel, for the three isolator units.

TX. DATA REC. DATA

CONNECTOR J1

CONNECTOR J2

RECEPT.(FEMALE CONN)

PLUG(MALE CONN)

TX. DATA REC. DATA

CONNECTOR J1

CONNECTOR J2


PLUG(MALE CONN)

TX. DATA REC. DATA

CONNECTOR J1

CONNECTOR J2


PLUG(MALE CONN)

INP

UT

CO

NN

J1

RS

-485

INPU

TS O

R O

UTP

UTS

S/N XXXXXXXXX

P/N XXXXXXXXX

XXXXXXXXX



MADE IN USA

S/N XXXXXXXXX

P/N XXXXXXXXX

XXXXXXXXX



MADE IN USA

S/N XXXXXXXXX

P/N XXXXXXXXX

XXXXXXXXX



MADE IN USA

1D2.

0004

.040

4.00

PRE-DRILLED PANEL

(SERIAL ISOLATOR UNITS SHOWN ARE NOT INCLUDED)

Figure 1-5. Rack-Mount Panel (M16404901) for ATCS Radio Serial Isolators



1.4. Adapter PCB

A small Adapter PCB is available that mates with and reduces the 25-pin "D" pinouts on the front of the RS-422 to EIA/TIA-232 (DCE) isolator to 9-pin type connectors (refer to Figure 1-6). This Adapter PCB is also equipped with a 2-post wiring terminal to connect external 12V when required by the application. The Adapter PCB cannot be used with the ATCS Serial Isolator EIA/TIA-485 to EIA/TIA-232 (DCE) (N16404702).

1D2.

0004

.040

3.01

9-PIN FEMALE PORTS

POWER TERMINALS

Figure 1-6. Adapter PCB (N39902601) for the ATCS Radio Serial Isolator RS-422 to EIA/TIA-232 (DCE)

1.5. User Interface

Data transmitted to the ATCS Radio Serial Isolator unit from the MicroLok II and data received from the radio is monitored with two LEDs on the isolator's cover.



1.6. Serial Isolator Unit Specifications

Table 1-2. RS-232/423 Serial Isolator Specifications

PARAMETER SPECIFICATION

STS USA Part No. N16401101

Supported Serial Modes RS-232/RS-423

Input/Output Isolation 1500 VAC RMS @ 60 Hz

Power Input 9.5 to 16.5Vdc (signal; battery)

Modem Power Outputs +12V and -12V

Data Rate 1,200 to 9600 baud

Serial Cable Connections Two 25-pin “D” connectors:

J1 – Male, Inputs J2 – Female, Outputs

Power Connections Two discrete-wire terminals with adapter PCB – N39902601

Unit Mounting Four mounting points for mounting on rack panel or other surfaces

Temperature Range -40ºC to +70ºC

Table 1-3. ATCS Radio-Compatible Serial Isolator Specifications


STS USA Part No. N16404701 and N16404702

Supported Serial Modes RS422 to EIA/TIA-232 (DCE) – N16404701 EIA/TIA-485 to EIA/TIA-232 (DCE) – N16404702

I/O Isolation 2000 Vac RMS

Power Input On-unit: 9.5 to 16.5Vdc (12Vdc nom.) over serial link With adapter PCB: 12 Vdc (nom.) via 2-terminal connector with adapter PCB – N39902601

Data Rates N16404701 (422/232): 9.6K baud N16404702 (485/232): 19.2K baud

Serial Cable Connections

Two 25-pin D connectors as follows: J1, male, inputs J2, female, outputs

Or

Two 9-pin D connectors, female, on adapter PCB N399026 as follows J3, inputs J4, outputs


Temperature Range -40ºC to +70ºC

Table 1-4. RS-232 Triple Isolator Specifications




STS USA Part Number N16401103 Supported Serial Mode RS-232

Power Input and Power Connections 9.8VDC to 16.2VDC (12VDC Nominal on two pin screw terminals on top face of Isolator Unit). Power Input Wire AWG: 18 AWG to 12 AWG

Modem Voltage Outputs +10V and -10 VDC levels Data Rate 9.6K baud I/O Isolation 1500 VAC RMS @60 Hz for one minute

Serial Cable Connections

Two DB25 D connectors as follows: J1, Male, Inputs, J2, Female, Outputs Dual pin layout for maximum flexibly See wiring table on the side of the unit for pin connections (Figure 1-4)


Temperature Range -40° F to 158° F (-40°C to 70°C), 95% relative humidity at signal battery inputs from 9.8 VDC to 16.2 VDC

1.7. PCB Addressing and Communication

There is no addressing associated with the serial link isolator units.

1.8. I/O Interface

NOTE

Exercise care to ensure that devices that are serially connected directly to a MicroLok II unit DO NOT have serial connections to devices that might ground serial common.

The serial commons for all MicroLok II serial ports are connected directly to negative vital battery AND to each other. This means that anything connected to any serial port common is also connected to negative vital battery. Furthermore, anything connected to the serial common of any equipment that is directly connected to any MicroLok II serial port is connected to negative vital battery through MicroLok II. This imposes serious restrictions on the characteristics of the devices that can be DIRECTLY CONNECTED to the MicroLok II serial ports. For example, most commercial data modems connect their serial common to earth ground, either directly or through a low resistance. Also, most data radios connect their serial common directly to their antenna ground. Both of these conditions create a problem since they introduce a connection between negative vital battery and earth ground.

Isolation between serial commons is necessary when serially connecting MicroLok II units that are powered by different batteries. As these battery power supplies are considered vital and are required to float with respect to earth ground, significant potential differences can develop between the battery negatives. These potential differences could conceivably be equalized by the connection between serial commons.



This situation poses a threat both to communication circuit reliability and the electrical integrity of the connected MicroLok II units. In addition, interconnection of battery commons by any means is not a recommended practice.

This situation is remedied by introducing a serial line isolator in the serial line between the MicroLok II units. This unit provides a high level of isolation between the signal commons of MicroLok II and serial devices such as modems and data radios.

The RS-232 link from the MicroLok II CPU Com Port passes through an STS USA serial isolator before going to the modem. This ensures there will be no grounding problems between interconnected MicroLok II units.

Refer to Figure 1-7 for a typical wiring diagram for Serial Isolator N16401101.

Code SystemInterface PCB

48-pinConn.

B12

N12

E2

C2E6

C4

C12A8

A6

S1TXD

S1RXDS1RTS

S1RXD+

S1COM

S1DCD+S1DCD-

SlavePort

Serial LinkIsolator UnitN16401101

Serial LineCarrier

25

12

24

10

2512

24

10

23 23

EarthGnd

Data In

Data OutKey-On

Signal Common

Carrier Detect

1D2.

0004

.040

5.01

MicroTrax In Plug MicroLok In Plug

Figure 1-7. RS-232/423 Serial Isolator Typical Wiring Diagram

All MicroLok II serial ports are identified as Data Line Terminating Equipment (DTE). This means that Transmit Data (TXD) and Request To Send (RTS) signals are outputs and Receive Data (RXD), Data Carrier Detect DCD), and Clear To Send (CTS) are inputs. The STS USA serial isolators are identified as Data Carrying Equipment (DCE) and Transmit Data (TXD) and Request To Send (RTS) are inputs and Receive Data (RXD) and Data Carrier Detect (DCD) are outputs.



Normal serial connections between the MicroLok II and the serial isolator will be as follows:

MICROLOK II (DTE)

TXD TXD

RXD RXD

DCD DCD

RTS RTS

SERIAL ISOLATOR (DCE)1D

2.00

04.0

421.

00

Depending upon the application in which a Serial Isolator Unit is used, the following connector cables are available for data input and output transmission functions.

Table 1-5. Serial Link Isolator Unit Connector Cables

CABLE PART NO. DESCRIPTION FIGURE REFERENCE

N16919401 I-LOK to Serial Isolator Figure 1-8

N16919601 E-Lok to Serial Isolator Figure 1-9

N16919701 MLK II Port 3 via CPU Cable N16915601 to Serial isolator Figure 1-10

N32500301 GEN II Port 3 via CPU Cable N16916801 to Serial isolator Figure 1-11

N16919501 Serial Isolator to Rugged Server RS400 Figure 1-12

N16921701 GEN II Ports 3 and 4 Serial Isolators Figure 1-13

N16917201 Serial Isolator ATCS DB25F to Radio DB25M Figure 1-14

N16919901 Serial Isolator ATCS DB25F to Radio ATCS MIL-SPEC Figure 1-15

N16920701, 02, 03 Serial Isolator DB25M to Radio WCM RJ45 Figure 1-16



MALE

PIN

S

TO i-LOK TO ISOLATOR

25 PINDB25M

23DCD

24RTS

25TXD

12RXD

13COM

R

BU

G

MICROTRAX IN PLUG(N16401101)

ORCONNECTOR 1 PLUG

(N16401103)

FEMALE PINS

25 PINDB25F

25

12

10

W

4 FT.FLAT SIDE FLAT SIDE

P/N N16919401REV. NO. XX

PIN # 1 PIN # 1

1D2.

0004

.041

5.01

Figure 1-8. I-LOK to Serial Isolator Cable N16919401

FEM

ALE

PIN

S

TO END POINT TO ISOLATOR

25 PINDB25F

8 DCD

4 RTS

2 TXD

3 RXD

7 COM

R

G

BU

25 PINDB25F

25MICROTRAX IN PLUG

(N16401101)OR

CONNECTOR 1 PLUG(N16401103)

12

10

W

4 FT.

FLAT SIDE FLAT SIDE


PIN # 1

FEMALE

PINS

PIN #1

1D2.

0004

.041

2.01

Figure 1-9. E-LOK to Serial Isolator Cable N16919601



FEM

ALE

PIN

S

25 PINDB25F

8

4

2

3

7

RTXD

BUCOM

RTS

G

25 PINDB25F

25

12

10

WRXD

FLAT SIDE


PIN # 1FEM

ALE

PIN

S

11W REF-

DCD

4 FT.

TO MLK II TO ISOLATOR

PIN #1

1D2.

0004

.041

6.01


ORCONNECTOR 1 PLUG

(N16401103)

Figure 1-10. MLK II Port 3 via CPU Cable N16915601 to Serial Isolator Cable N16919701

MAL

E P

INS

25 PINDB25M

8

4

2

3

7

R

BU

G

25 PINDB25F

25

12

10

W

FLAT SIDE


PIN # 1

FEM

ALE P

INS

11W

4 FT.

TO GEN II TO ISOLATOR

PIN #1

TXD

RXD

COM

REF-

RTS

DCD1D2.

0004

.041

4.01


ORCONNECTOR 1 PLUG

(N16401103)



Figure 1-11. GEN II Port 3 via CPU Cable N16916801 to Serial Isolator Cable N32500301

M

ALE

PIN

S

TO ISOLATOR TO RS-400

MAL

E P

INS

25 PINDB25M DB9M

WRXD

25

5

2

3

12

10

9 PIN

RTXD

BUCOM

6 FT.


PIN # 1

PIN # 1

FLAT SIDEFLAT SIDE

1D2.

0004

.042

0.01

MICROLOK IN PLUG(N16401101)

ORCONNECTOR 2 PLUG

(N16401103)

Figure 1-12. Serial Isolator to Rugged Server RS400 Cable N16919501



P2RXD+

a c e

C18

E18

A26

E20+5V

C24BR +12V

C26W -12V

E22BK COM

A24G

A18BU

R

2

3

7

18

21

24

N/C

N/CBR

A4W

A2G

C8R

C6BK

BU

SPARE

SPARE

E20+5V

E22BU COM

C30G

E32Y

C32R

C28BR

W

E PROMPCB

N170020-01

2

P2TXD+

P2RXD-

C24+12V

C18BK COM

A8BU

A6W

E14G

E16BR

R

J1-2

J1-3

J1-15

J1-17

J1-7

J1-21

P3TXD

P3RXD

P3TXC

P3RXC

P1RXD-

P1RXD+

PITXD-

PITXD+

Z

Z

Y

Y

X

X

W

W

P3REFCOM

TO ATCS ISOLATOR

TO SERIAL ISOLATOR

(MA

LE)

TO CLA INTERFACE

TO M

KL II

CPU

TO A

TCS

ISO

LATO

RTO

CLA

INTE

RFA

CE

142

163N/CN/C

(FE

MA

LE)

72 "

72 "

N/C

N/C

N/C

A32W

C22G

C20BR

25

12

10

N/C

N/C

N/C

P4TXD

P4RXD

COM

TO S

ER

IAL

ISO

LATO

R

(FEM

ALE

)

PART # TO MLK II CPU

PIN 1

PIN 13

PIN 14

PIN 25

PIN A2

PIN E32

25 "

PIN 1

PIN 13

PIN 14

PIN 25

R

BK

BU SPARE

SPARE

SPARE

PIN 1PIN 14

PIN 25PIN 13

C16

A14

P4DCD

P4RTS

(FE

MA

LE)

PIN 13PIN 25

PIN 14PIN 1

72"

1D2.

0004

.041

3.01

MIC

RO

TRA

X IN

PLU

G(N

1640

1101

)O

RC

ON

NE

CTO

R 1

PLU

G(N

1640

1103

)

Figure 1-13. GEN II Ports 3 and 4 to Isolator Serial Isolators Cable N16921701



PIN #1

PIN #25

PIN #1

PIN #25

(MA

LE)

(FEM

ALE

)

J2-2 3 (RXD-)

RTXD+

SHLD

25 PIN CONN. 25 PIN CONN.

PIN #13

PIN #14PIN #14

PIN #13

FEMALE MALE

J2-14 16 (RXD+)

BLKTXD-

J2-15 17 (RXC-)

WTXC+J2-12 9 (RXC+)

BLKTXC-

J2-3 2 (TXD-)

GRXD+J2-16 14 (TXD+)

BLKRXD-

J2-17 24 (TXC-)

BURXC+J2-9 18 (TXC+)

BLKRXC-

J2-7 7 (COM)

Y

BLKCOM

6 '

PART#REV.#

1D2.

0004

.041

7.01

Figure 1-14. Serial Isolator ATCS DB25F to Radio DB25M Cable N16917201



(FEM

ALE

)

R

SHLD

25 PIN CONN.15 PIN CONN.FEMALE

BLK

W

BLK

G

BLK

BU

BLK

Y

BLK

PART#REV.#

P

PIN 1

PIN 13

PIN 14

PIN 25

6 '

1D2.

0004

.041

9.01

J2-2 H (RXD-)

TXD+J2-14 J (RXD+)

TXD-

J2-15 F (RXC-)

TXC+J2-12 G (RXC+)

TXC-

J2-3 D (TXD-)

RXD+J2-16 E (TXD+)

RXD-

J2-17 B (TXC-)

RXC+J2-9 C (TXC+)

RXC-

J2-7 R (COM)COM

Figure 1-15. Serial Isolator ATCS DB25F to Radio ATCS MIL-SPEC Cable N16919901



The Serial Isolator to WCM cable illustrated in Figure 1-16 is available in three lengths (L): Part No. N16920701 – 6 ft. Part No. N16920702 – 15 ft. Part No. N16920703 – 30 ft.

WCM ISOLATOR

L

PIN 1

PIN 13

PIN 1

PIN 25

PIN 14

WCM ISOLATOR

MICROLOK IN PLUG(N16401101)

ORCONNECTOR 1 PLUG

(N16401103)

(MA

LE)

WCM PORT 1

DB25 RJ45

25121024

TXDRXDCOMRTS

RXDTXDCOMCTS

4186

PART NUMBER WCM PORT 1

1D2.

0004

.041

8.01

Figure 1-16. Serial Isolator DB25M to Radio WCM RJ-45 Cable N16920701, 02, and 03

1.9. System Applications

The MicroLok II system can be configured to manage communications with a remote non-vital code system. This code system would in turn handle interlocking communications with a central control office. For most code system applications, a Genisys II CPU printed circuit board is installed in the MicroLok II system cardfile, and a serial isolator unit is connected into the serial communication lines. Refer to Figure 1-17 through Figure 1-20 for typical wiring diagrams for Serial Isolator N16401101 used in different configurations.



MASTER OR SLAVEMICROLOK II

CPU TO MICROLOK II BATTERY

RFL CARRIER SET

A14

PORT 4

REQUEST TO SEND OR KEY ON

DATA CARRIER DETECT OR SQUELCH

RTS24 24

N12 B12

C20TXD

C22RXD

C16DCD

E22COM

10 10

23 23

12 12

25 25 DATA OUT

DATA IN

SIGNAL COMMON

SERIAL COMMUNICATIONCIRCUIT ISOLATION

UNIT N164011011D2.

0004

.040

7.01

Figure 1-17. Typical Microlok II Master or Slave to RFL Serial Modem Interface RS-232 Port 4 with Serial Isolator (Microlok or Genisys Protocol)

MASTER OR SLAVEMICROLOK II

CPU TO MICROLOK II BATTERY

RFL CARRIER SETPORT 3

REQUEST TO SEND OR KEY ON

DATA CARRIER DETECT OR SQUELCH

RTS24 24

N12 B12

TXD

RXD

DCD

COM10 10

23 23

12 12

25 25 DATA OUT

DATA IN

SIGNAL COMMON


UNIT N16401101

RXREF

CTS

-12VC26

E12

E18

C18

E10

E14

E16

C14

1D2.

0004

.040

8.01

Figure 1-18. Typical Microlok II Master or Slave to RFL Serial Modem Interface RS-232 Port 3 with Serial Isolator (Microlok or Genisys Protocol)



MASTERMICROLOK II

CPU TO MASTER MICROLOK II BATTERY

A14

PORT 4

RTS24 24

N12 B12

C20TXD

C22RXD

C16DCD

E22COM

10 10

23 23

12 12

25 25


UNIT N16401101

SLAVEMICROLOK I37-PIN D, F

DCD5

RXD 14

TXD16

RTS13

SIGCOM 1

RXCOM 18

SIGCOM 19

RTS 32

CTS 111D2.

0004

.040

9.01

Figure 1-19. Typical Microlok II Master or Slave Serial Interface RS-232 Port 4 with Serial Isolator (Microlok or Genisys Protocol)



MASTERMICROLOK I37-PIN D, F

TO SLAVE MICROLOK II BATTERY

RTS24 24

N12 B12

TXD

RXD

DCD

10 10

23 23

12 12

25 25


UNIT N16401101

SLAVEMICROLOK II

CPU

DCD

RXD

TXD

RTS

PORT 3

E10

E14

E16

C14

COMC18

RXREFE18

CTS E12

-12VC26

13

16

14

5

1SIGCOM

18 RXCOM

19SIGCOM

32 RTS

11 CTS

1D2.

0004

.041

0.01

Figure 1-20. Typical Microlok II Master to Microlok II Slave Serial Interface RS-423 Port 3 with Serial Isolator (Microlok Protocol)



A serial isolator is required between the GENISYS II serial port and the ATCS MCP. Refer to Figure 1-21 for typical interconnections.

E16TXD-

TXC-

RXD-

RXC-

REF-

COM

+12V

A6

E14

A8

E18

C18

C24

SERIALPORT 3

DB25F DB25M

GENISYS II48-PIN HARTING

CONNECTORATCS

RADIOCONNECTORS

J1-2 J2-2

J1-15

J1-3

J1-17

J1-7

J1-21

J2-14

J2-15

J2-12

J2-3

J2-16

J2-17

J2-9

J2-7

RXD- (A)

RXD-

RXD+ (B)

RXD+

RXC- (A)

RXC-

RXC+ (B)

RXC+

TXD- (A)

TXD-

TXD+ (B)

TXD+

TXC- (A)

TXC-

TXC+ (B)

TXC+

COMCOM

RS-232 - RS-422SERIAL ISOLATOR

N164047011D2.

0004

.041

1.01

Figure 1-21. Typical ATCS WIU Protocol Radio Connection



1.10. Configuration Options

Refer to the following illustration for a configuration using serial isolator units for vital and non-vital serial communications.

Non-Vital LinkNon-Vital Link

MicoLok IIMicroLok

MicroTrax(Master or Slave)

Vital Link

SerialIsolator

RFL Carrieror

Data Radio

SerialIsolator

MicroLokII

CPU

PowerSupply

MicroLok IISystemCardfile

GenII

CPU

CPU Board Interfaces1D2.

0004

.040

6.01

Figure 1-22. Microlok II Vital and Non-Vital Serial Communications





2. TECHNICAL SUPPORT

The Rapid Action Information Link Team (RAIL Team) is a group of experienced product and application engineers ready to assist you to resolve any technical issues concerning this product. Contact the RAIL Team in the United States at 1-800-652-7276 or by e-mail at [email protected].



End of Module

Documents

Serial Link Isolator Units - Hitachi Rail · 2019. 3. 25. · The RS-232/423 Serial Isolator Unit protects RS-232/RS-423 type communication lines between the MicroLok II CPU PCB or