Site I/O , Span Line, RGPS and Modem Cabling for Sites Equipped With
Customer–Supplied Site I/O Interface
– continued
DEC 2000
4-27
SC
t
300 BTS Hardware Installation, ATP and FRU Procedures
PRELIMINARY
Table 4-25: Pin/Signal Information for Site I/O Cable
BTS Interface
Description
Wire/Stripe
Color
Brown/Grey
Data from Head –
Brown/White
Data from Head +
Red/Black
Data to Head –
Red/Brown
Data to Head +
Red/Orange
1 PPS from Head –
Red/Yellow
1 PPS from Head +
Red/Green
1 PPS to Head –
Sync Forward
Red/Blue
1 PPS to Head +
Sync Forward
Red/Purple
RGPS 28V
Red/Grey
RGPS Ground
Red/White
RGPS 28V
Orange/Black
RGPS Ground
Orange/Brown
RGPS 28V
Orange/Red
RGPS Ground
Orange/Yellow
NO CONNECTION
Orange/Green
NO CONNECTION
Orange/Blue
RX TIP Primary (Network)
Orange/Purple
RX RING Primary (Network)
Orange/Grey
TX TIP Primary (Network)
Span (Network)
Orange/White
TX RING Primary (Network)
Span (Network)
Yellow/Black
RX TIP Secondary (Network)
Yellow/Brown
RX RING Secondary (Network)
Yellow/Red
TX TIP Secondary (Network)
Yellow/Orange
TX RING Secondary (Network)
. . . continued on next page
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