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Line Interface Modules
DS3-2C Overview
032R440-000
Xedge 6000 Hardware
5-15
Issue 17
Installation & Setup Guide
DS3-2C Overview
The DS3-2C LIM is a two port DS3 LIM for ATM transport that can be used with
a variety of controllers listed in
.
Front Panel indicators
•
IS
illuminates when link is in-service.
•
OS
illuminates when link is out of service. Glows dimly when the LIM is in a
not communicating correctly with the Slot Controller.
•
LB
illuminates during line loopback tests.
•
RD
illuminates when there is a receive (red) loss of frame alarm or loss of
signal.
•
BL
illuminates when there is a receive blue alarm indication signal (AIS)
alarm.
•
LS
illuminates when there is a receive loss of signal alarm.
•
YL
illuminates when there is a receive yellow alarm (FERF- Far End Receive
Failure).
•
ER
illuminates when there is an error on the link receive line. (A parity error
is an example of an error that causes ER to light.)
Front Panel Connectors
•
The DS3-2C LIM uses one 75-ohm coaxial cable each for transmit and receive,
following
law. (Insertion loss per ANSI T1.102, Figure-9.)
•
LINK 0 TX
is a 75-ohm BNC connector for the link 0 transmit line.
LINK 0 RX
is a 75-ohm BNC connector for the link 0 receive line.
•
LINK 1 TX
is a 75-ohm BNC connector for the link 1 transmit line.
LINK 1 RX
is a 75-ohm BNC connector for the link 1 receive line.
•
IMPORTANT! Refer to
Class A EMI-RFI Suppression Requirements
(
) to comply with all domestic and international standards.
Figure 5-8
DS3-2C LIM Front Panel Features
DS3-2C
LINK 0
TX
RX
TX
RX
LINK 1
L0
IS
OS
L1
LB
RD
BL
LS
YL
ER
F