Operations and Maintenance Manual

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JANUS
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Multi-Protocol Reader 2.4 Appendix
Confidential UM 360467-110 Revision: B Page 225 of 247
© Kapsch TrafficCom Canada Inc. 2021
All information contained herein is proprietary to, and may only be used with express, written permission from, Kapsch TrafficCom Canada Inc.
FILE: UM 360467-110 REV B3 MPR 2.4 CLEAN.DOCX 03/02/2021 1:01
Kapsch TrafficCom
LPM RS-422 COM Port pin out
Connector Type
Data Terminal Equipment (DTE) pin assignment, DB9
Lightning Suppression
Recommended on pins 1, 2, 3, 4.
Pin Number
Signal
Description
Diagram
1
TXD+
Transmit data output
2
TXD-
Transmit data output
3
RXD+
Receive data output
4
RXD-
Receive data input
5
NC
6
NC
7
NC
8
NC
9
NC