User Manual

Isolate Span Lines/Connect LMF – continued

SC4812ET BTS Optimization/ATP — CDMA LMF

Jan 2002

3-6

SC4812ET Span Line Labeling for Span B and Span C is

swapped

– On the SC4812ET’s, the span cabel internal to the base

station that connects the 50 pin header on the I/O plate to

the CSU has Span B and Span C (RJ–45) connectors

mis–labeled.

– CFE will punch down the span on the 50 pair bunchblock

as per Motorola documentation and punchdown chart.

When conecting the span input to the CSU re–label

“Span B” cable to”Span C” cable to “Span B”. Connect

to CSU as per documentation

– Note: The labeling issue on the cable from the I/O plate

to the CSU Part Number 3086601H01 Rev C shall be

corrected on revision “D” to address this issue. The cut

over date to Rev. D will be approximately January 30,

2001.

CAUTION

Alarm and Span Line Cable

Pin/Signal Information

See Figure 3-2 and refer toTable 3-1for the physical location and pin

call–out information for the 50–pin punch block.