Operations and Maintenance Manual

MPR 4.1

Reader Maintenance Instructions

Confidential UM UM360479-100 Revision: Draft B4 Page 119 of 246

All information contained herein is proprietary to, and may only be used with express, written permission from, Kapsch TrafficCom Canada Inc.

FILE: UM360479-100 REV B4 DRAFT WIP MPR-4.1 READER OPERATIONS AND MAINTENANCE MANUAL (002).DOCX 05/25/2022 11:18

Kapsch TrafficCom

Constant busy state on sync bus

A Reader that erroneously holds the sync bus in a BUSY state causes all other Readers connected to

the bus to time-out while waiting for the READY state. As a result, all of their SYNC LEDs will be

flashing red. Disconnect each Reader one at a time from the sync hub until the fault clears then

reconnect each Reader in the order of removal until the fault reappears. Service each faulty Reader.

Sync Failure Indicator for incomplete cable connections

The SYNC LED will flash steadily red if there is no activity on the Rx port of the sync connector. If both

transmit and receive connections are cut off from the sync hub the indicator will flash red. If only the

transmit connection is disconnected and there are other Readers in the synchronization network, the

SYNC LED stays green.

Identifying failures on the reader

Reader failure is indicated by any of the following conditions:

• Ethernet LC link down, as indicated on the Reader browser Status page.

• Ethernet IR network link down, as indicated on the Reader browser Status page.

• STATUS LED is red