User's Manual

Span Lines – Interface and Isolation
PRELIMINARY
SC 4812ETL BTS Optimization/ATP
08/15/2000
3-4
Isolate BTS from T1/E1 Spans
At active sites, the OMC/CBSC must disable the BTS and
place it out of service (OOS). DO NOT remove the span
surge protectors until the OMC/CBSC has disabled the
BTS.
IMPORTANT
*
Each frame is equipped with one 50 pair punch block for spans,
customer alarms, remote GPS, and power cabinet alarms. See Figure 3-2
and refer to Table 3-1 for the physical location and pin call–out
information. To disable the span, pull the surge protectors for the
respective span.
Before connecting the LMF to the frame LAN, the OMC/CBSC must
disable the BTS and place it OOS to allow the LMF to control the BTS.
This prevents the CBSC from inadvertently sending control information
to the BTS during LMF based tests.
Configure Channel Service Unit
The M–PATH 537 channel service unit (CSU) provides in–band
SNMP–managed digital service access to T1 and fractional T1 lines.
M–PATH units plug into the ADC Kentrox 2–slot frame (see
Figure 3-1).
Remote M–PATH management is available via SNMP over an in–band
data link on the T1 line (using a facility data link or 8–64 Kbps of a DS0
channel). The unit at the near end of the management path can be an
SNMP manager or another M–PATH CSU.
Each 19 inch rack can support two CSU M–PATH 537 modules. Each
M–PATH 537 module supports a single span connection.
Programming of the M–PATH is accomplished through the DCE 9–pin
connector on the front panel of the CSU shelf. Manuals and a Microsoft
Windows programming disk is supplied with each unit.
3