User's Manual
Ethernet LAN
68P09255A69-3
Aug 2002
1X SC4812ET Lite BTS Optimization/ATP Software Release 2.16.1.x
PRELIMINARY
2-4
Ethernet LAN
Ethernet LAN Termination
For proper operation, each end of the primary and redundant BTS
Ethernet Local Area Networks (LAN) must be terminated with a
50-ohm load. For a BTS consisting of a stand-alone or a companion
frame, this is done by placing 50-ohm triaxial terminations on the LAN
A and B external IN and OUT connectors located in the power entry
compartment (Figure 2-2).
Check the LAN A and B external IN and OUT connectors in the power
entry compartment of each frame, and be sure terminations are installed
on all the uncabled external LAN connectors.
Figure 2-2: External Ethernet LAN Connectors
Rear of Frame
(Power Entry Compartment
Door Open)
Section of Network Interface Panel
(Rotated 30 Right)
LAN A OUT
LAN B OUT
LAN A IN
LAN B IN
SC4812ETL0024-2
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