Operations and Maintenance Manual

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JANUS
®
Multi-Protocol Reader Ver. 2: Maintenance Instructions
Confidential UM 360463-202: A12 (Draft) Page 134 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
Superframes
The available RF Air time is divided into frames. A series of frames is assembled into a superframe
which can be used to sync multiple readers together. In some configurations, a series of superframes
is assembled into a megaframe which is used to sync multiple readers together. A frame can be either
a TDM or FDM period. A superframe can be a collection of TDM and/or FDM frames.
Multi-protocol RF Module Smart
The Multi-protocol RF Module Smart (MRFM-S) can handle multiple passive tag protocols; 6B (ISO
18000-6 Type B), 6C (ISO 18000-6 Type C), ATA (10374/ATA/AAR S-918) SeGo and Allegro,as well
as the active protocol IAG. The MRFM-S hardware must be configured by Kapsch TrafficCom to
handle 6C OBUs.
In a scanning operation, multiple MRFM-S channels can fire simultaneously, depending on the
application (straddle channels do not fire when lane channels fire). The Reader bitstream determines
the pattern of MRFM-S channel firing. Time slots are issued within time division control signals sent
from the CTM CGC2 via the DSM to each MRFM-S. Each MRFM-S channel is configured by Kapsch
TrafficCom with a unique frequency to prevent interference between channels.
The MRFM-S design includes a software command for adjusting the transmitter peak output power.
Due to regulatory requirements, software controls for setting the Tx power level and Rx sensitivity are
limited to users authorized by Kapsch TrafficCom . Contact Kapsch TrafficCom if these levels need to
be adjusted.
When installing or replacing an MRFM-S, the lane must be retuned.
The MRFM-S transmits a message to the CGC. After the message is processed by the CTM, a
message is sent to the LC.
The signals between the MRFM-S and the DSM are shown in Table 4-1.
Table 4-1: MRFM-S signals to and from DSM
Signal
Description
data input from DSM
Tx DA  signals, RS422 bi-polar AM envelope modulation signals
data output to DSM
Rx DA  signals, RS422 bi-polar AM envelope demodulation signals
RF control
Rx EN  and Tx EN , RS422 bi-polar transceiver enable signals
RF control
A0  and A1 , RS422 bi-polar data address enable signals
power input from DSM
+5VDC (Vcc), +15VDC
The serial communication settings for the LC COM port are configurable through the web interface.