Rsc-M Lines Maintenance - Nortel DMS 100 Series Maintenance Manual

You must RTS a carrier in the SysB-P state manually.
The DMS switch counts alarms, faults, and RTS for specified time or for audit
intervals. At the end of an accumulative audit interval, the system clears the
counters. An accumulative audit interval is normally midnight to midnight.
The RSC-M carrier states are:
• O (offline)
• C (CBSY)
• M (maintenance busied)
• . (in-service)
• S (system busy)

RSC-M lines maintenance

When a CAS carrier is installed, all channels send a blocking signal. When a
line becomes INSV the associated channel sends an idle signal. When the
system busies a line, the system sends a blocking signal on the associated
channel.
RSC-M line states
RSC-M line states indicate the system can respond to maintenance actions or
call processing. The system supports the following line states:
• CPB - call processing busy. The line is call processing (OFFhook).
• CPD - call processing deload. The BSY command (blocking) is issued to
a CPB line. This line goes to MB when the subscriber goes on-hook.
• DEL - deloaded. The DEL is a state that changes between CPD and MB.
• IDL - idle. When an RSC-M carrier is INSV, all lines on this carrier
become INSV idle (IDL). The system sends an IDL pattern (1101) by each
associated line.
Note: A return to service (RTS) of a carrier does not idle the lines.
Return to service the lines. If the lines are idle before the carrier is
busied, the lines must be idle immediately after an RTS of the carrier.
• MB - manually busy. Maintenance personnel remove the lines from
service for maintenance actions.
• INB - installation busy. Data entry on the line is not complete; data entry
on the line is in progress; data entry is complete, but a return to service of
the line did not occur.
• NEQ - not equipped. The line is not entered.
DMS-100 Family Remote Switching Center Multi-Access Maintenance Manual XPM11 and up
Maintenance overview 2-31