Operations and Maintenance Manual

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JANUS
®
Multi-Protocol Reader 2.4 Appendix
Confidential UM 360467-110 Revision: B Page 232 of 247
© Kapsch TrafficCom Canada Inc. 2021
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
Term
Meaning
Reference or example
DC
direct current
DCD
Data carrier detect
RS232 pin assignment
DCE
Data communications equipment
RS232 port configuration, transmit is pin 2
deg.
degrees
DIN
Deutsches Institut für Normung
German national standards organization
DSM
Distribution Module
Reader’s back plane carrying DC power distributions to each
module and signal connectivity between modules.
DSR
Data set ready
RS232 pin assignment
DTE
Data terminal equipment
RS232 port configuration, transmit is pin 3
DTR
Data terminal ready
RS232 pin assignment
EBX
embedded board expandable form
factor
compatible with legacy PC104 form factor
EIA
Electronic Industry Association
EMI
Electromagnetic Interference
Disturbance to radio signals and electronic circuits due to
undesirable B-field emissions from an external source. See also
RFI.
EMP
Electromagnetic Pulse
Strong disturbance that negates the ability of all exposed
electronics in the affected area.
EN
enable
ESD
electro-static discharge
ESM
Ethernet Switch Module
Used to create an inter-Reader network of up to 3 Readers in ORT
installations, improves Voting
ETC
Electronic Toll Collection
Collection of tolls using electronic mechanisms such as RFID tags
and Readers
FCC
Federal Communications
Commission
FDM
Frequency Division Multiplexing
An RF module that is able to scan multiple OBUs from the
frequency being emitted by them.
FME
Front Mount Exterior
An exterior tag in a weatherproof package mounted using the
front license plate mounting holes. This item replaces the LPT tag
FPGA
Field Programmable Gate Array
the FPGA file defines the bit stream
FPT
Flat Pack Transponder
An interior tag in flat package mounted on the inside of the
windshield