User's Manual

RGPS Cabling for Multiple BTS Sites Equipped with Optional Primary
Surge Suppressor
DRAFT
SC300 1X BTS Hardware Installation, ATP, and FRU Procedures
JAN 2002
5-24
Objective
This procedure gives information to connect multiple BTS sites for both
RGPS (synchronous) and HSO (non–synchronous) configurations in
both indoor and outdoor applications.
Background
The RGPS connects to the site I/O interface of a multi–unit logical BTS.
This first unit sends timing signals to all other units in a multi–unit
logical BTS. You only need to connect the site I/O interfaces of each
BTS to each other. This allows “sharing” of a single RGPS antenna
between several single or multi–unit logical BTSs.
This also applies to systems using HSO instead of RGPS. The HSO
timing is “shared” in the same way.
Required Cables and Kits
Cables
The RGPS Synchronization Cable is contained in the Motorola kits
listed in Table 5-17:
Table 5-17: Required Cables for Multi–BTS RGPS Cabling
Cable Qty. Part Number Description
X 1–11
3086039H18 RGPS Synchronization cable (part of kit SGKN4351A).
3086039H19 RGPS Synchronization cable (part of kit SGKN4352A).
Motorola kits
Table 5-18 and Table 5-19 show the contents of Motorola kits
SGKN4351A and SGKN4352A. These kits are necessary for RGPS
cabling between multiple BTS sites.
Table 5-18: RGPS Synchronization Cable Kit – SGKN4351A
Cable Qty. Motorola Part
Number
Description
X 1 3086039H18 RGPS Sync Cable, 2000 ft.
n/a 2 5864461A03 Fitting, liquid tight.
n/a 2 0264599A02 Nut, nylon locking
Table 5-19: RGPS Synchronization Cable Kit – SGKN4352A
Cable Qty. Motorola Part
Number
Description
X 1 3086039H19 RGPS Sync Cable, 3280 ft.
n/a 2 5864461A03 Fitting, liquid tight.
n/a 2 0264599A02 Nut, nylon locking
5