Nortel Meridian 1 Option 11C, Administration And Maintenance

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Page 352 of 492 Chapter 8 — Service changes and maintenance
553-3011-311 Standard 7.0 May 1999
MISP fault isolation and correction
The MISP provides a communication interface between the CPU and the
peripheral devices. It processes the signaling information received on the
D-channels from the DSLs. These D-channels may also carry packet data that
the MISP separates from signaling information and forwards to the packet
handler.
To isolate and correct the MISP-related problems, follow the procedures
below.
Procedure 8-1: Checking the MISP status
The diagnosis in Table 22 indicates that the MISP may be faulty, not
configured, or disabled.
To obtain the MISP status:
1 Log-in on the maintenance terminal and load overlay program 32.
2 Enter STAT c where c is the card slot number of the MISP you are
testing.
If the response is;
c: MISP LOOP
mm DSBL nn BUSY
MISP c: ENBL ACTIVATED xx/xx/xx xx:x
BRIL or BRIT: ENBL
BRIL or BRIT is the ISDN BRI LINE or TRUNK (whichever one is
configured) application on the MISP. The MISP is enabled, where mm
is the number of disabled connections on the Card, which should be 0 and
nn is the number of busy connections on the MISP. This number is equal
to 2x(# of line cards + 1) where 1 indicates that packet data transmission
is configured, (there are 2 connections for each SLIC or UILC and an
additional connection for packet data handling). The xx/xx/xx xx:x is the
date and time the MISP base code was activated.