Operations and Maintenance Manual

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JANUS
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Multi-Protocol Reader Ver. 2: Maintenance Instructions
Confidential UM 360450-210 Revision C Page 174 of 288
© Kapsch TrafficCom Canada Inc. 2014
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: UM 360450-210 REV C JANUS MPR2 OPERATOR-MAINTENANCE MANUAL.DOCX 08/17/2015 11:42
Kapsch TrafficCom
Figure 5-6: RF Cable Installation Schematic Bi-Static Operation
Use of the RF amplifier
The maximum cable loss and associated maximum cable length, as defined in the RF Cable
Specifications on page 265, is based on the output power of the MRFM-S module and the sensitivity of
the transponders. When the site specific application exceeds the limits defined on page 265, an
amplifier assembly can be used to effectively increase the output power of the MRFM-S module an
additional 6dB. This 6dB is then used to increase the maximum cable loss permitted as defined on
Page 265.
Use of this amplifier should be reviewed with Kapsch personnel before implementation. Figure 5-7
shows a typical installation that includes the use of the power amplifiers.