Operations and Maintenance Manual

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JANUS
®
Multi-Protocol Reader Ver. 2: Maintenance Instructions
Confidential UM 360463-202: A12 (Draft) Page 152 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
The JANUS reader system and antennas in the lane kits are optimized for applications using 12 foot
lane widths. The antenna placement requirements and support for this and other lane widths are as
follows.
 The lane centerline is the mid-point between the lane markings.
 The antenna boresite should be on the lane centerline and lane markings.
 Physical lane widths below 12 ft are not an issue provided the separation between lane centers
is 12 ft or greater.
o If separations are below this there is a higher risk of reports from multiple lanes for the
same tag. Note the use of the voting algorithms will correctly assign the tag to the
correct lane). There may also be some reduction in the read performance for passive
protocols.
 If the physical lane width exceeds 15 ft, the lane should be treated as a multi-lane free flow
configuration and multiple lane kits used per lane.
Where multiple readers are on a site, the following additional guidelines apply:
 The readers must be synchronized and running the same configuration.
 The same FDM channel frequency should not be used on adjacent lanes (including straddle
and shoulder).
 The same active channel from two (2) synchronized readers should not be used on adjacent
lanes (including straddle and shoulder).
Installing the MRFM-S Modules
CAUTION:
To avoid damaging the modules, ensure that alignment of both
the connector on the module and the connector on the DSM
(back plane) is correct before securely plugging the module into
the DSM.
1. Insert the required number of MRFM-S Modules into the Reader and secure in place.
2. Label the front panel of each MRFM-S Module with the corresponding lane number and antenna type.
Installing the RF cables
CAUTION:
Excessive bending or kinking can damage the RF feedline cables. Do not
excessively bend or kink the RF feedline cables while fishing them through
the rigid conduit from the antenna to the Reader enclosure.
1. Place the RF feedline cable(s) in position. Use an appropriate cable type (coaxial or Heliax) to ensure the
RF feedline cable does not produce a signal loss greater than permitted, see section 8 RF Cable