User's Manual

BTS Equipment Identification68P09258A31–A
Oct 2003
1X SCt 4812T BTS Optimization/ATP
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BTS Equipment Identification
Equipment Overview
The Motorola SC 4812T BTS can consist of the following equipment
frames:
S At least one BTS starter frame
– +27 V BTS (see Figure 1-2)
– –48 V BTS (see Figure 1-3)
S Ancillary equipment frame (or wall mounted equipment)
S Expansion frames
– +27 V BTS (see Figure 1-4)
– –48 V BTS (see Figure 1-5)
Ancillary Equipment Frame Identification
NOTE
Equipment listed below can be wall mounted or mounted in a
standard 19 inch frame. The description assumes that all
equipment is mounted in a frame for clarity.
If equipped with the RFDS option, the RFDS and directional couplers
are the interface between the site antennas and the BTS or Modem
frame. The RFDS equipment includes:
S Directional couplers
S Site receive bandpass/bandreject filters
S RFDS
Logical BTS
The BTS software implements the logical BTS capability. Previously, all
BTS frames co–located at a single site had to be identified in the
network with separate and distinct BTS ID numbers. In the Logical BTS
feature, all frames located at a single BTS site are identified with unique
Frame ID numbers (Frame ID Numbers 1, 101, 201, 301) under a single
(site) BTS ID number. A logical BTS can consist of up to four
SC 4812T frames.When the LMF is connected to frame 1 of a logical
BTS, you can access all devices in all of the frames that make up the
logical BTS. A logical BTS requires a CDF/NECF file that includes
equipage information for all of the logical BTS frames and their devices
and a CBSC file that includes channel data for all of the logical BTS
frames.
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