Operations and Maintenance Manual

JANUS

Multi-Protocol Reader 2.4 Operating Instructions

Confidential UM 360467-110 Revision: B Page 66 of 247

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

Channel Sequence A

IAG Read Only

TDM Slot 1: CH1 + CH5

TDM Slot 2: CH3

TDM Slot 3: CH2+CH4

TDM Slot 4:CH6+ CH7

Figure 3-2: Example Flexible Over the Air Multi-Protocol Tag Acquisition Sequence (6B Weighted)

6C TID Read

Request

Sync Block

6B Triple Page

Request

6B Triple Page

Request

Sync BlockSync Block

Figure 3-3: Example Flexible Over the Air Multi-Protocol Tag Acquisition Sequence with Dummy Frame

TDM Time Slots

Channel

Sequence A

6C TID Read

Request

Sync Block

6B Triple Page

Request

Dummy Frame ATA

Dummy frame

A dummy frame is a software configurable time interval which can be inserted in the firing sequence. A dummy

frame can be configured in one of the following two ways.

• Constant carrier is applied at the desired frequency and TX attenuation. The receivers are turned off.

• Both the transmitter and receiver are turned off.

Reader synchronization

The reader synchronizes air transmission timing to its own channels and to the redundant CTM, as well as to

other readers, if these readers are on the sync network and correctly enabled. To support reader sync at least 1

Sync frame must be configured in the Frame Sequence. For more information see page 143.

ATTENTION: When syncing newer versions of readers with

older versions of readers, an advanced knowledge of sync

configuration is required. Therefore, it is recommended that

Kapsch Service be consulted, as boundaries and limits of

variables may not be the default and will need to be

reconfigured