E1 RS232 485 422 Converter OPtostar

E1E1E1E1 totototo RS232/RS485RS232/RS485RS232/RS485RS232/RS485/RS422/RS422/RS422/RS422ConverterConverterConverterConverter

UserUserUserUser’’’’ssss ReferenceReferenceReferenceReference ManualManualManualManual

Version： 2.5Date： June 16, 2007

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E1-RS232/RS485/RS422 Converter

ToToToTo users:users:users:users:

Thank you for using our products. Before using, please read this

Reference Manual carefully, and keep properly.

AlarmAlarmAlarmAlarm

1. This product can not be caught in or be affected with damp, for they

can make the performance degressive and even broken..

2. Before fixing this product, please check the model and according to the

User’s Reference Manual.

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TableTableTableTable ofofofof contentscontentscontentscontents

1. GENERAL INFORMATION................................................................................................. 4

1.1 APPEARANCE OF PRODUCT............................................................................................41.2 FUNCTIONS....................................................................................................................41.3 FEATURES......................................................................................................................41.4 PARAMETER AND SPECIFICATIONS................................................................................ 51.5 DIMENSION....................................................................................................................51.6 OPERATION ENVIRONMENT........................................................................................... 51.7 PACKAGING...................................................................................................................6

2. INSTALLATION...................................................................................................................7

2.1 FRONT PANEL................................................................................................................72.1.1 Indicator LED........................................................................................................ 72.1.2 Loop back test button.............................................................................................8

2.2 BACK PANEL................................................................................................................. 92.2.1 Power supply......................................................................................................... 92.2.2 E1 interface............................................................................................................ 92.2.3 RS232 interface....................................................................................................10

2.3 SETTING.......................................................................................................................112.3.1 Clock setting........................................................................................................ 112.3.2 Mode setting........................................................................................................ 12

3. INSTALLATION PROCEDURE........................................................................................ 13

4. TROUBLE SHOOTING...................................................................................................... 14

5. TYPICAL APPLICATION..................................................................................................15

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1.1.1.1. GeneralGeneralGeneralGeneral informationinformationinformationinformation

1.11.11.11.1AppearanceAppearanceAppearanceAppearance ofofofof productproductproductproduct

Figure 1: product figure

1.21.21.21.2 FunctionsFunctionsFunctionsFunctions

E1 to RS232/RS485/RS422 converter provides conversion between ITU-T G.703

standard E1 interface and RS232/RS485/RS422 port and provides safe and seamless

connection of communication between different devices with different interfaces.

Data interface mode is DCE, can connect with DTE or DCE device.

RS232/RS485/RS422 channel can transmit RS232/RS485/RS422 asynchronous

serial signal with auto-adapt baud rate of 0 to 115200.

1.31.31.31.3 FeaturesFeaturesFeaturesFeatures

� Based on self copyright IC.

� Supports 3 wire RS232(TXD,RXD,GND) and supports flow control CD,

DSR, CTS

�� Provides 2 kinds loop back：E1 local loop, RS232/RS485/RS422 local

loop

�� Having pseudo random code test function, can used as a 2M Protocol

Analyzer

� Supports both 120Ω/balance and 75Ω/unbalance impedance

� RS232/RS485/RS422 supports hot plug, can connect with DTE or DCE

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�� RS232/RS485/RS422 channel can transmit RS232/RS485/RS422

asynchronous serial signal with auto-adapt baud rate of 0 to 115200

1.4 Parameter and specifications

� E1 interface

Standard: conform to G.703 standard.

Coding: HDB3

Impedance: 75Ω (unbalance), 120Ω (balance)

Connector: BNC (75Ω), RJ45 (120Ω)

Jitter Performance: According to G.742 and G.823

Clock: internal clock, line clock

� RS232/RS485/RS422 interface

Rate: asynchronous mode: 0 to 57600 bps self-adapt.

Interface: compatible with ITU-T V.24 V.11

Connector: RJ45

Connect mode: DCE

1.51.51.51.5 DimensioDimensioDimensioDimension

Desk top type: 212(W)*138(D)*30(H)

1.61.61.61.6 OperationOperationOperationOperation environmentenvironmentenvironmentenvironment

Voltage: AC180V-265V, DC-48V, DC+24V

Power Consumption: <=5 Watts

Working temperature: 0°C~50°C

Storage temperature: -40°C~+70°C

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Humidity: 0~95% non-condensing

No causticity and solvent, dust free, and no strong magnetic interference.

1.71.71.71.7 PackagingPackagingPackagingPackaging

Contents in the package

Converter 1

BNC Connector 2

user manual 1

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2.2.2.2. InstallationInstallationInstallationInstallation

2.12.12.12.1 FrontFrontFrontFront panelpanelpanelpanel

Figure 2: front panel

2.1.12.1.12.1.12.1.1 IndicatorIndicatorIndicatorIndicator LEDLEDLEDLED

There are 7 indicator LED on front panel.

From left to right is as following:

NameNameNameName ColorColorColorColor StatusStatusStatusStatus DescriptionDescriptionDescriptionDescription

TXD yellow wink Indicates RS232/RS485/RS422 data output

RXD yellow wink Indicates RS232/RS485/RS422 data input

LOS redON E1 signal lossOFF E1 signal normal

LOF reserved

TEST yellowON Under test status(ANA, DIG, REM, PATT pressed any)OFF In normal working status

PTOK greenON PATT pressed, PATT test normalOFF PATT pressed, PATT test not normalWink PATT pressed, PATT test has error code

PWRgreen

ON Power ONOFF Power not ON

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2.1.22.1.22.1.22.1.2 LoopLoopLoopLoop backbackbackback testtesttesttest buttonbuttonbuttonbutton

There are 4 switch buttons on the front panel, from left to right as follows:

� ANA：local loop of E1, used to test if local device and connect wire is

normal

Figure3: ANA test button

� DIG：RS232/485/422 local loop back, used to test remote device and

E1 line.

Figure 4: DIG test button

� PATT： pseudo random code test: generate pseudo random code to

RS232/485/422 input port, and test if the output signal of RS232/485

/422 accord with the standard. PTOK ON if accord, OFF if not accord.

PATT

RX compare

E1Circuit

E1

E1

E1

E1portportportport

RS

RS

RS

RSportportportport

There must be one loop back when test

Loop 1 Loop 2

Figure5: PATT test button

detect if local device work normal when loop 1 open, detect if E1 transmission

line and both device work normal when loop 2 open and loop 1 close.

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� REM: reserved.

Note:

1) press any button of front panel will stop normal data transfer,

and shift to test mode.

2) The connection should be a loop when in PATT mode, or no

return for the send pseudo random code.

2.22.22.22.2 BackBackBackBack panelpanelpanelpanel

Figure 6: Back panel

2.2.12.2.12.2.12.2.1 PowerPowerPowerPower supplysupplysupplysupply

� AC220V power supply socket connect to the power wire directly.

� DC-48V power supply socket: -48V;If the power of DC -48V is used,

the positive and negative terminal can be optional because there is the

self-test circuit for the polarity inside it.

2.2.22.2.22.2.22.2.2 E1E1E1E1 interfaceinterfaceinterfaceinterface

E1 interface of this device provides 75Ω and 120Ω impedance adapt, no need

set.

Unbalance E1 (75Ω), and balance E1 (120Ω) switch button is on the back

panel.

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� 75Ω: BNC，RX: input，TX: output；

� 120Ω: RJ45

The definition of pins as follows:

Figure 7: E1 interface pin definition

2.2.32.2.32.2.32.2.3 RS232RS232RS232RS232 interfaceinterfaceinterfaceinterface

For RS232：

There isRJ45 interface on back panel, which is DCE standard interface for RS232.

For RS485/422：

There isRJ45 interface on back panel, the definition is as follows:

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2.32.32.32.3 SettingSettingSettingSetting

8 DIP switches on the back panel used for E1 clock setting.

2.3.12.3.12.3.12.3.1 ClockClockClockClock settingsettingsettingsetting

8 DIP pull switch on the front panel, DIP 1-2 is clock switch.DIP1 DIP 2 description

OFF(up) OFF(up) E1 internal clock(default), master modeON(down) ON(down) E1 line clock, slave mode

� Internal clock: use clock generated by internal crystal, receive clock is

generated from E1.

� Line clock: working clock from received E1 signal.

E1 clock mode choice:

� When working in pair, both internal clock, or one internal and the other line

clock.

� Try to make only one device provide clock in connection.

� Avoid all devices in connection use line clock. If be sure that device provides

clock, then to set other as line clock. If not sure, set the device as internal clock.

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2.3.2 Mode setting

DIP3-4 for RS232 mode setting：

DIP3DIP3DIP3DIP3 DIPDIPDIPDIP 4444 DescriptionDescriptionDescriptionDescriptionOFF(up) OFF(up) RS422 modeON(down) OFF(down) RS232 modeOFF(up) ON(down) RS232 modeON(down) ON(down) RS485 mode

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3.3.3.3. InstallationInstallationInstallationInstallation ProcedureProcedureProcedureProcedure

� Unpack, inspect the content carefully. Verify that all items are included with

your carton. Contact us or local agent if there is any content missing or

damaged.

� Check power supply configuration. Care about the value of voltage if use DC

input.

� Take following tests before usage:

� Check if all the loop back test switch buttons on back panel is loosen,

PWR and LOS should be ON, and all other LED should be OFF.

� Press PATT button, TEST should be ON, PTOK should be OFF. Then

Press ANA button, PTOK ON and LOS OFF.

� If used in pair, when press PATT button, you may not press ANA, then

press DIG or REM of remote device, PTOK should be ON.

� If indicator LED works normal, unpress all switch on the back panel and

power off, set clock, plug E1 wires, then power on, the device should work

normally.

� If device does not work normally, please refer to chapter 4: trouble shooting.

Contact us or our local agent in time if the problem can’t be solved.

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4.4.4.4. TroubleTroubleTroubleTrouble shootingshootingshootingshootingWhen work normal, LINK, PWR, DATA LED ON, all other LED OFF.

phenomenonphenomenonphenomenonphenomenon solutionsolutionsolutionsolution1111 PWRPWRPWRPWROFFOFFOFFOFF CheckCheckCheckCheck ifififif powerpowerpowerpower supplysupplysupplysupply connectconnectconnectconnect okokokok

2222 LOSLOSLOSLOS ONONONONLoopLoopLoopLoop backbackbackback TXTXTXTX（outputoutputoutputoutput）andandandand RXRXRXRX（inputinputinputinput）,if,if,if,if LEDLEDLEDLEDOFF,OFF,OFF,OFF,

checkcheckcheckcheck thethethethe E1E1E1E1 wirewirewirewire

3333

allallallall LEDLEDLEDLEDworkworkworkwork

normal,normal,normal,normal, butbutbutbutnononono datadatadatadata

transmissiontransmissiontransmissiontransmission

CheckCheckCheckCheck ifififif testtesttesttest buttonbuttonbuttonbutton pressed,pressed,pressed,pressed, TESTTESTTESTTEST isisisis ON,ON,ON,ON, andandandand resetresetresetresetallallallall buttonbuttonbuttonbutton

SerialSerialSerialSerial datadatadatadata startstartstartstart bitbitbitbit error,error,error,error, restartrestartrestartrestart softwaresoftwaresoftwaresoftware orororor devicedevicedevicedevice

PressPressPressPress PATT,PATT,PATT,PATT, andandandand remoteremoteremoteremote looplooplooploop backbackbackback (press(press(press(press DIG),DIG),DIG),DIG), ififififPTOKPTOKPTOKPTOKOFF,OFF,OFF,OFF, thenthenthenthen E1E1E1E1 channelchannelchannelchannel havehavehavehave problem.problem.problem.problem.

CheckCheckCheckCheck ifififif havinghavinghavinghaving datadatadatadata looplooplooploop backbackbackback totototo RS232/485RS232/485RS232/485RS232/485/422/422/422/422(such(such(such(such asasasas SDHSDHSDHSDH E1E1E1E1 loop,loop,loop,loop, remoteremoteremoteremote DIGDIGDIGDIG pressed),presspressed),presspressed),presspressed),press

locallocallocallocal PATT,PATT,PATT,PATT, ifififif PTOKPTOKPTOKPTOKON,ON,ON,ON, thenthenthenthen havinghavinghavinghaving loop.loop.loop.loop.

4444

DataDataDataDatatransmissiontransmissiontransmissiontransmissionbutbutbutbut havinghavinghavinghaving

losslosslossloss

CheckCheckCheckCheck ifififif bothbothbothboth devicesdevicesdevicesdevices havehavehavehave beenbeenbeenbeen setsetsetset asasasas linelinelineline clock,clock,clock,clock, thethethethecorrectcorrectcorrectcorrect settingsettingsettingsetting shouldshouldshouldshould be:be:be:be:

1)both1)both1)both1)both devicesdevicesdevicesdevices internalinternalinternalinternal clockclockclockclock2)or2)or2)or2)or oneoneoneone devicedevicedevicedevice internalinternalinternalinternal clockclockclockclock andandandand thethethethe otherotherotherother linelinelineline

clockclockclockclock

NoteNoteNoteNote：howhowhowhow totototo checkcheckcheckcheck thethethethe devicedevicedevicedevice workworkworkwork normal?normal?normal?normal?(1)(1)(1)(1) ifififif presspresspresspress ANAANAANAANA onononon oneoneoneone device,device,device,device, andandandand presspresspresspress PATT,PTOKPATT,PTOKPATT,PTOKPATT,PTOK ON,ON,ON,ON, ifififif unpressunpressunpressunpress ANA,ANA,ANA,ANA,PTOKPTOKPTOKPTOKOFF,OFF,OFF,OFF, thenthenthenthen thethethethe devicedevicedevicedevice workworkworkwork normal.normal.normal.normal.(2)(2)(2)(2) ifififif presspresspresspress PATT,PATT,PATT,PATT, PTOKPTOKPTOKPTOK OFF,OFF,OFF,OFF, presspresspresspress DIGDIGDIGDIG onononon remoteremoteremoteremote device,device,device,device, PTOKPTOKPTOKPTOK ON,ON,ON,ON, thenthenthenthenbothbothbothboth devicesdevicesdevicesdevices andandandand E1E1E1E1 worksworksworksworks normal.normal.normal.normal.cautioncautioncautioncaution：1111、TESTTESTTESTTEST ONONONON（somesomesomesome buttonbuttonbuttonbutton ONONONON ,,,, maybemaybemaybemaybe stopstopstopstop normalnormalnormalnormal datadatadatadata communicationcommunicationcommunicationcommunication）2222、 pseudopseudopseudopseudo randomrandomrandomrandom codecodecodecode（PATTPATTPATTPATT）testtesttesttest，mustmustmustmust havinghavinghavinghaving loop,loop,loop,loop, orororor thethethethe sendsendsendsend pseudopseudopseudopseudorandomrandomrandomrandom codecodecodecode wouldwouldwouldwould notnotnotnot return.return.return.return.

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5.5.5.5. TypicalTypicalTypicalTypical applicationapplicationapplicationapplication

Figure 8: typical application

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E1 RS232 485 422 Converter OPtostar