how do i find the address of the MSDL? 2

[moggers]

Hello,

I confess am am not a telco engineer. I am IT that does what is needed on the PBX

We have an office that is having issues with the line in to the PBX. the telco say that they have fixed it so I need to now follow the process to disble and enable the lines to check.

we have documents that a kind fellow wrote a while back for our other offices. The documents are specific and differnt for each office and go like this

2. Disable to problem circuit. Before we can attempt to re-establish the circuit we must make sure all parts are in a disabled state. This will allow us to attempt to restart the circuit in a controlled manner. Below we will disable loop 20 and associated items.
2.1. In overlay 60 disable the loop – DISL 20.

********************************************
2.2. Access Overlay 96 and disable the MSDL – DIS MSDL 4 0 1 ALL
*********************************************

2.3. In overlay 96 disable the associated D-Channel (DCH) – DIS DCH 20
2.4. Now stat the DCH in overlay 96 – STAT DCH 20. It should be ‘DOWN’. If not repeat steps 2.2 and 2.3.
2.5. Go to overlay 60 and check the status of the Loop – STAT 20. No channels should be shown, just the Loop header information.
3. Now to enable the Loop
3.1. In overlay 96 enable the MSDL – ENL MSDL 4 0 1
3.2. Now enable the D-Channel – ENL DCH 20.
3.3. Access overlay 60 and wait for a DCH message.
3.4. Enable the Loop – ENLL 20
3.5. When you have seen the OK response check the status of the loop – STAT 20. You should now see all the channels in and IDLE state, some may be BUSY.
3.6. Wait a few minutes to see if the circuit stays stable. Keep checking using STAT 20.

The crucial part that I don't know is the MSDL. How do I identify the address for our MSDL? once I have this I can then do the rest

thanks so much in advance

 

[GHTROUT]

I don't think you will need to know the MSDL in this case. You simply want to disable/enable the T1/PRI

In the office that had the trouble (we'll assume it is a small office with one T1/PRI)

LD 60
.STAT

Make a note of "Loop" and its CH 24 (the DCH channel)

LD 96
.DIS DCH x (x= the DCH value in the previous step)

LD 60
.DISL zz (zz= The Loop you found from the STAT command)

.ENLL zz (zz= The Loop you found from the STAT command)

LD 96

.ENL DCH x (x= the DCH value in the previous step)

.STAT DCH - repeat this to watch the status change.


Some of these commands can be found here:

http://www.ghtrout.com/ghtrout/files/Nortel_CS1000_Basic_Maintenance_Commands.pdf

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[moggers]

thanks for the info most appreciated. I have made myself familiar with your pages before

I am siding on the caution and there is a part i don't quite understand. you say to "Make a note of "Loop" and its CH 24 (the DCH channel)"

I'm not sure from my response what the DCH channel is

the output of the first ld 60, stat is
>ld 60
DTI000
SL-1 --- SYS-12/AXE-10 SWE/NUMERIS/SWISS/TCNZ
/EUROISDN/SING/THAI/MSIA/INDO/CHNA
/INDI/PHLP
CHANNEL TIMESLOT MAPPING

.
SL-1 NETWORK TIMESLOT
B-CHANNEL 1 -15 1 -15 1 -15
16-30 17-31 17-31
D-CHANNEL 31 16 16
stat

PRI2 LOOP 12 - ENBL
REF CLK: DSBL
SERVICE RESTORE: NO
ALARM STATUS: OOS NO AUTO STRT
CH 01 - MBSY DID VOD * CH 02 - MBSY DID VOD *
CH 03 - MBSY DID VOD * CH 04 - MBSY DID VOD *
CH 05 - MBSY DID VOD * CH 06 - MBSY DID VOD *
CH 07 - MBSY DID VOD * CH 08 - MBSY DID VOD *
CH 09 - MBSY DID VOD * CH 10 - MBSY DID VOD *
CH 11 - MBSY DID VOD * CH 12 - MBSY DID VOD *
CH 13 - MBSY DID VOD * CH 14 - MBSY DID VOD *
CH 15 - MBSY DID VOD * CH 16 - MBSY DID VOD *
CH 17 - MBSY DID VOD * CH 18 - MBSY DID VOD *
CH 19 - MBSY DID VOD * CH 20 - MBSY DID VOD *
CH 21 - MBSY DID VOD * CH 22 - MBSY DID VOD *
CH 23 - MBSY DID VOD * CH 24 - MBSY DID VOD *
CH 25 - MBSY DID VOD * CH 26 - MBSY DID VOD *
CH 27 - MBSY DID VOD * CH 28 - MBSY DID VOD *
CH 29 - MBSY DID VOD * CH 30 - MBSY DID VOD *
CH 31 - DCH 12

is my DCH 12 or 31 or of course neither?

thanks

 

[GHTROUT]

I see, Euro

So, in your case:

Loop is 12
DCH is 12

[©] GHTROUT.com [⇔] A Variety of Free Resources for Nortel Meridian/CS1000 System Administrators

 

[moggers]

Thanks you so much for your help here. The link is now restored and the lines are working.

I think the users were enjoying the silence