uEN 50121-3-2-2006 Railway applications - Electromagnetic compatibility - Part 3-2 Vehicles - Equipment and instruments

uIEC 61373-1999 Railway Applications - Railway Vehicle Equipment - Shock and Vibration Tests

uGB/T 25119-2010 "Electronic Devices for Rail Transit Locomotives and Rolling Stock"

1. Product model

2. Product appearance

The appearance is as followsimageAs shown:

3. Interface description

3.1 RS232/485andDefinition of power interface pins

RS232/485The port is standardterminal interface，as followsimageAs shown:

RS232/485Definition of interface pins

The power interface is24VInput, regardless of positive or negative direction. As shown in the figure:

power interface

3.2 HDLCInterface Definition

HDLCadopt standardsHANTINGofDB9Interface, among whichJX5For needlesJX7For the holes, their internal connections arePCBImplementation on top.

The definition of an interface is as followsimageAs shown:

Pin interface（JX5）Definition:

Confucian-styleinterface（JX7）Definition of：

Note:Converter asHDLCWhen using a network terminal,Need to enable120Ohmic resistanceInsert the jumper cap.

Terminal resistance jumper

3.3 Indicator Light Instructions

Converter'sPCBabove3aLEDAll used to indicate functions, such astableAs shown:

Definition of indicator lights

uHDLC complianceISO/IEC3309Standard Physical Link Layer Protocol in China；

uHDLCCommunication speed 9600/19200Optional;

uHDLCSynchronous transmission adopts frame synchronization, with a control sequence of HDLCOrder, access method is terminal registration communication/selection;

uHDLCThe transmission code is NRZI；

uHDLCThe modulation method is baseband transmission;

uHDLCThe error control is CRC-CCITTVerification;

uintegration1road3-wire typeRS-232communicationinterfaceOr a 2-wire typeRS-485 communicationinterfaceThe default communication rate is115200bps， Other baud rate requirements can be customized;

uThe serial interface follows the standard ZZC protocol（behindThere is a description)，customizableModbus/RTU protocol;

uHDLCadoptDC2500VelectricityqiIsolation;

uThe main power supply adopts9-36V DC power supply, power consumption less than2W；

uOperating Temperature-40℃ ～ +85℃

ustorageTemperature:-40℃ ～ +85℃

uMaximum relative humidity:90%