Operations and Maintenance Manual

_
JANUS
®
Multi-Protocol Reader 2.4 Appendix
Confidential UM 360467-110 Revision: B Page 235 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
RFI
Radio Frequency Interference
Disturbance to radio signals and electronic circuits due to
undesirable E-field emissions from an external source. See also
EMI.
RFID
RF Identification
An automatic Identification methodology relying on storing and
retrieving data remotely using OBUs or RFID Tags (transponders)
and Readers.
RFIF
RF Interface
Internal connection from the CTM via the DSM to the RF modules
RID
Reader ID
a configurable Reader parameter
ROM
Read Only Memory
Data, such as software, in this type of storage device cannot be
modified
RSE
Roadside Equipment
The collection of all AVI equipment at the roadside, including
Reader, antennas, Ethernet switches, power supplies, cables and
connectors. (incorrect, only includes Reader rack)
RTS
Ready to send
RS232 pin assignment
RX or Rx
receive or receiver
Communications or RF Module functions
RXD
Transmit data
RS232 pin assignment
SGND
System ground
SMA
Sub-miniature version A
An RF connector type
SNR or S/N
Signal to noise ratio
A comparison of desired signal to the level of background noise.
SPM
Sync Port Module
PWA board to provide sync signals to the Reader via the
termination network
SSH
Secure shell
SSL
Secure sockets layer
Internet site security access via certificates
Sync
Synchronization
TAB
Tabulation
System of indexing used for variations of assembly drawings. A
drawing number ending in the suffix “-TAB” will have a list of all
other variations of the drawing (can be from -001 to -999).
TC
Toll collection
a Reader application
TCP
Toll Collection Programming
Software modules used to collect tolls
TCP/IP
Transmission Control
Protocol/Internet Protocol
The Internet Protocol Suite is the set of protocols used for the
Internet, and other systems or Intranets
TDM
Time Division Multiplexing
An RF module that is able to scan OBUs through time sequencing
by using time difference between one OBU and another.