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Line Interface Modules
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
•
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
(Figure
5-25) to comply with all domestic and international standards.
Jumper Settings
Each E3-2C LIM link has a jumper
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
5-16
law. The maximum insertion loss is 12 db at 17.184 MHz.
F
Class A EMI-RFI Suppression Requirements
(Figure
Link-0 Jum per
Link-1 Jum per
E3-2C LIM Front Panel Features and Jumper Positions
Xedge 6000 Hardware
Installation & Setup Guide
5-9) that must be set prior to installing the
E3-2C Overview
Table
1-4.
E3-2C
LINK 0
TX
RX
L0
L1
IS
OS
LB
RD
BL
LS
YL
ER
TX
RX
LINK 1
032R440-000
Issue 17
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