User's Manual

Pinging the Processors
PRELIMINARY
1X SCt4812ET Lite BTS Optimization/ATP
08/01/2001
3-28
Pinging the BTS
For proper operation, the integrity of the Ethernet LAN A and B links
must be be verified. Figure 3-12 represents a typical BTS Ethernet
configuration for the SC4812ET Lite with an expansion frame. The
drawing depicts cabling and termination for both the A and B LANs.
Ping is a program that sends request packets to the LAN network
modules to get a response from the specified “target” module.
Follow the steps in Table 3-12 to ping each processor (on both LAN A
and LAN B) and verify LAN redundancy is working properly.
Always wear a conductive, high impedance wrist strap
while handling any circuit card/module to prevent damage
by Electro–Static Discharge (ESD).
CAUTION
SIGNAL
GROUND
SIGNAL
GROUND
50Ω
IN
SC4812ET Lite
(MASTER)
SC4812ET Lite
(EXPANSION)
SIGNAL
GROUND
Figure 3-12: BTS Ethernet LAN Interconnect Diagram
50Ω
50Ω
SC4812ETL0013–4
SIGNAL
GROUND
50Ω
SIGNAL
GROUND
FRAME GROUND
TRIAX
TERMINATOR
TRIAX
TERMINATOR
TRIAX
TERMINATOR
TRIAX
TERMINATOR
IN
OUT
OUT
3