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Line Interface Modules
Installation Guidelines
In a new Xedge switch, the slot controllers and LIMs are shipped from the factory already installed
in the chassis. This section provides basic procedures on the proper removal, replacement, setup and
cabling of Xedge LIMs. See
•
When installing modules in a replacement chassis, remove the blank panels that cover each slot
by loosening the two retaining screws.
•
When handling LIMs, always use an antistatic wrist strap to prevent static discharge damage to
the electronic circuits.
•
It is not necessary to power down the chassis when swapping modules.
•
To avoid damaging the EMI springs when installing a module in a chassis, carefully insert the
module into its slot and fasten its front panel captive screws to the chassis before installing the
next module. Similarly, modules should be removed one at a time, that is, unfasten the captive
screws of one module and carefully remove that module from its slot before removing the next
module. If the EMI springs are damaged, contact your authorized field service representative.
•
Before installing any module, first set any jumpers or switches for your specific network
configuration, as described in this chapter.
•
For the DS3-2C, E3-2C and 155E-2 LIMs, be sure to comply with all domestic and
international Class A EMI-RFI suppression requirements by installing the supplied ferrite
beads (see
•
Be aware that dedicated slots at the rear of the Xedge 6280, 6640 and 6645 chassis are intended
for Network Timing Modules (NTM) only. Refer to
information.
Note
Refer to
Chapter 2, Xedge Chassis Systems
Chassis, including grounding, rack-mounting, power requirements, etc.
LIM Removal/Replacement
1. Loosen the two captive screws on the front panel of the LIM and open the latches of the LIM
you are replacing.
2. Gently pull the LIM out of the slot by its latches. There is slight resistance until the LIM
connectors disconnect from the slot connectors. Place the LIM in anti-static packaging.
3. On the replacement LIM, set the jumper and/or switches for each module as required in your
network. Refer to the appropriate section in this chapter for details on each LIM.
4. Determine the proper slot location for the particular LIM by referring to the slot/LIM
compatibility information listed in
5. Insert the edges of the LIM into the tracks of the slot and slide the module inward until it stops.
6. Tighten the two captive screws on the front panel of the LIM.
7. Connect the appropriate I/O lines to the LIM's front panel input connectors using the proper
cables as listed in this chaper and in
8. If necessary for your environment, be sure to comply with all domestic and international Class
A EMI-RFI suppression requirements by installing the supplied ferrite beads for your chassis
type, as shown in
9. The LIM is under the control of its slot controller. Refer to the Xedge Configuration Guide for
the controller (Version 6.2 or Version 7.x) to properly configure the LIM.
5-2
Figure 5-1
for proper LIM locations in any Xedge chassis.
Figure 5-25
and
Figure
5-26).
for additional information and procedures specific to your Xedge
Table
Table
Figure 5-25
or
Figure
Xedge 6000 Hardware
Installation & Setup Guide
Installation Overview
Chapter 6, Network Timing Modules
1-4.
1-6.
5-26).
for
032R440-000
Issue 17
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