User's Manual
RGPS Cabling for Multiple BTS Sites Equipped with Optional Primary
Surge Suppressor
– continued
JAN 2002
5-29
SC300 1X BTS Hardware Installation, ATP, and FRU Procedures
DRAFT
Cable Connections
For a full signal description of the Site I/O cable, refer to Table 5-14 in
the “Site I/O, Span Line, RGPS and Modem Cabling For Sites Equipped
With Primary Surge Suppressor” procedure.
The pin number and wire color are based on the Site I/O
cable. The pin number corresponds to pins on the Site I/O
junction box connectors.
NOTE
Table 5-23: Multi–BTS RGPS Cable Run List for Primary Surge Suppressor
Sync Reverse – From BTS N Interconnecting
RGPS Cable
(Cable X)
Sync Forward – To BTS N+1
Punchblock
Location
Signal RGPS Cable
Color
Punchblock
Location
Signal
OSP 9T Data to Tail– Green/Black OSP 14T Data from Head–
OSP 9R Data to Tail+ Green OSP 14R Data from Head+
OSP 10T Data from Tail– White/Black OSP 15T Data to Head–
OSP 10R Data from Tail+ White OSP 15R Data to Head+
OSP 11T 1 PPS to Tail– Brown/Black OSP 16T 1 PPS from Head–
OSP 11R 1 PPS to Tail+ Brown OSP 16R 1 PPS from Head+
OSP 12T 1 PPS from Tail– Red/Black OSP 17T 1 PPS to Head–
OSP 12R 1 PPS from Tail+ Red OSP 17R 1 PPS to Head+
OSP 20T Ground* Blue/Black OSP 20R Ground*
*The Multi–BTS Synchronization interface must also be referenced to the BTS digital ground through a 7.5K
ohm, 1W resistor. This resistor has been integrated into the blue/black wire of Cable X. The end of Cable X
with the resistor should be connected to the Sync Reverse locations on the punch block of BTS N. The
opposite end of Cable X is connected to the Sync Forward locations on the punch block of BTS N+1 and may
be cut to the appropriate length.
5