Operations and Maintenance Manual

_
JANUS
®
Multi-Protocol Reader Ver. 2: Appendix
Confidential UM 360463-202: A12 (Draft) Page 284 of 291
© Kapsch TrafficCom Canada Inc. 2013
These drawings and specifications contain confidential and proprietary information and are the property of Kapsch TrafficCom Canada Inc. and are issued in strict
confidence and will be kept confidential and used solely for the purpose intended and for no other purpose and shall not be transmitted, reproduced, copied, and/or
used as the basis for manufacture or sale of apparatus unless otherwise agreed to in writing by Kapsch TrafficCom Canada Inc.
FILE: MPR2_OPERATIONS_AND_MAINTENANCE-MANUAL_REV A12.DOCX 05/08/2014 11:24
Kapsch TrafficCom
Differences between the Badger and JANUS® Readers
ATTENTION: A JANUS
®
Multi-protocol Reader Ver. 2 (MPR2) that is non-redundant uses
primary-side hardware components whereas the JANUS
®
non-redundant reader uses
secondary-side hardware components.
ATTENTION: The software of a JANUS
®
Multi-protocol Reader Ver. 2 (MPR2) that is non-
redundant is locked in Primary mode; the mode switch mechanical position is ignored.
The software of a JANUS
®
non-redundant reader is locked in Secondary mode; the mode
switch mechanical position is ignored.
Users familiar with the Badger Reader application for ORT must note the following changes with
respect to the use of Kapsch TrafficCom’s JANUS
®
ETC Subsystem:
Note 1: Connection of the JANUS
®
Readers in an inter-Reader network allows adjacent Readers to vote
on the lane assignment used for the transaction report.
Note 2: Shared antennas are no longer required between Readers.
Note 3: The 4-channel scan configuration is no longer needed.
Note 4: Reporting latency has been reduced to 5 ms for the JANUS
®
Reader. It was 35 ms for the
Badger Reader. Use the configuration parameter Report Latency by Tag Type 0 – 4 to slow down the
transaction reports to the LC for those legacy sites where the LC is expecting Badger Reader timing.
Note 5: There is no theoretical upper limit to the number of ORT lanes that can be supported with
multiple co-located Readers.
Note 6: The IAG-3 antenna is recommended for use in JANUS
®
ORT applications. (The IAG-2 antenna
currently used in toll plaza lanes is not recommended.)
The JANUS
®
and Badger Reader features are compared in Table 7-1.
Table 7-1: Important Differences between the Badger Reader and the JANUS Reader
Feature
JANUS
Badger
Notes
Performance Features
Synchronization
Y
Y
Compatible performance with Badger
Reader 4 wire sync circuit.(Not
compatible with IAG Reader 2 wire sync
circuit)
Reader redundancy
Y
Y
Automatic switchover upon failure to the
redundant Reader without data loss.
Variable channel scan configuration
Y
Y
Improve handshakes per channel for
ORT
Cross Reader Algorithm (via tag)
Y
Y
Dependent on successful tag
programming.
Cross Reader Voting (via Ethernet link)
Y
Fixed Voting within Reader
Y
Y
Based on tag/Reader handshakes