Installation Instructions

Site I/O, Span Line, RGPS and Modem Cabling for Sites Equipped With
Primary Surge Suppressor
– continued
DEC 2000
5-29
SCt300 BTS Hardware Installation, ATP and FRU Procedures
PRELIMINARY
Table 5-14: Pin/Signal Information for Site I/O Cable and Punchdown Block
BTS Interface DescriptionPunchblock
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 –
S
ync
F
orwar
d
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
U
nuse
d
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)
S
pan
(N
etwor
k)
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
Ph
one
(M
o
d
em
)
OSP 25R MODEM RING
*Motorola recommends that you use the Customer Input 8 Signal and Ground for load center alarms.
5