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Line Interface Modules
E3-2C Overview
5-16
Xedge 6000 Hardware
032R440-000
Installation & Setup Guide
Issue 17
E3-2C Overview
The two-port E3-2C LIM for ATM transport is used with 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 (Far End Receive Failure).
•
ER
(Receive Line Error) is not used.
Front Panel Connectors
•
The E3-2C LIM uses one 75-ohm coaxial cable each for transmit and receive,
following
law. The maximum insertion loss is 12 db at 17.184 MHz.
•
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.
Jumper Settings
Each E3-2C LIM link has a jumper (
) that must be set prior to installing the
LIM in the chassis. When the jumper is set, the receive shield is connected to chassis
ground. When removed, the receive shield is isolated from chassis ground.
Figure 5-9
E3-2C LIM Front Panel Features and Jumper Positions
E3-2C
LINK 0
TX
TX
RX
LINK 1
L0
IS
OS
L1
LB
RD
BL
LS
YL
ER
RX
F
Link-1 Jum per
Link-0 Jum per