User's Manual

Local Area Network (LAN) Expansion Installation
Mar 2003
1X SC 4812T-MC BTS Hardware Installation - Software Release R2.16.1.x
CONTROLLED INTRODUCTION
3-14
Local Area Network (LAN) Expansion Installation
Configuration
The LAN is only connected between frames in a BTS if the system is
running software revision 2.9 or later, and the site is configured as a
logical BTS.
NOTE
C-CCP dip switch changes are required to reflect frame ID (refer
to Figure 3-10).
Tools Required
S 5.5 mm Hex socket
Torque Specifications
Terminator grounding stud nut: 10–12 in-lbs (1.1 – 1.3 N-m).
LAN Expansion Installation Procedure
Table 3-5 provides the procedure to install LAN Expansion.
Table 3-5: Installing LAN Expansion
Step Action
1 Remove the LAN OUT A and LAN OUT B terminators (BNC) located on the Starter frame I/O plate.
2 Remove the LAN IN A and LAN IN B terminators (BNC) located on the Expansion frame I/O plate
through a conductive tether and lug attached to a grounding stud (see Figure 3-9).
3 To remove the lug of the tether from the grounding stud, remove the nut and washer from the
grounding stud using a 5.5 mm hex socket and ratchet. Slide the lug off the stud.
4 Reinstall the nut and washer on the grounding stud, tightening the nut to 8–10 in-lbs using the 5.5 mm
hex socket and torque ratchet.
5 Install the frame-to-frame LAN cables by plugging one end of a BNC cable into the LAN OUT B
connector on the Starter Frame I/O plate. Plug the opposite ends of the cables into the appropriate
LAN IN (A and B) connector on the Expansion Frame I/O plate.
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