Site I/O, Span Line, RGPS and Modem Cabling for Sites Equipped With
Primary Surge Suppressor
– continued
DEC 2000
5-29
SC
t
300 BTS Hardware Installation, ATP and FRU Procedures
PRELIMINARY
Table 5-14: Pin/Signal Information for Site I/O Cable and Punchdown Block
BTS Interface
Description
Punchblock
Location
OSP 14T
Data from Head –
OSP 14R
Data from Head +
OSP 15T
Data to Head –
OSP 15R
Data to Head +
OSP 16T
1 PPS from Head –
OSP 16R
1 PPS from Head +
Sync Forward
OSP 17T
1 PPS to Head –
Sync Forward
OSP 17R
1 PPS to Head +
OSP 18T
RGPS 28V
OSP 18R
RGPS Ground
OSP 18T
RGPS 28V
OSP 18R
RGPS Ground
OSP 19T
RGPS 28V
OSP 19R
RGPS Ground
Unused
OSP20T
Unused
Unused
OSP20R
Unused
OSP 21T
RX TIP Primary (Network)
OSP 21R
RX RING Primary (Network)
OSP 22T
TX TIP Primary (Network)
Span (Network)
OSP 22R
TX RING Primary (Network)
Span (Network)
OSP 23T
RX TIP Secondary (Network)
OSP 23R
RX RING Secondary (Network)
OSP 24T
TX TIP Secondary (Network)
OSP 24R
TX RING Secondary (Network)
Phone (Modem)
OSP 25T
MODEM TIP
Phone (Modem)
OSP 25R
MODEM RING
*Motorola recommends that you use the Customer Input 8 Signal and Ground for load center alarms.
5