There are 7 modules to the system;
1. KSU
a. Crd 1 – PRI
b. Crd 2 - ISDN
2. Mod 3 – Stn Mod
3. Mod 4 – Stn Mod
4. Mod 5 – Stn Mod
5. Mod 6 – Stn Mod
6. Mod 7 – ASM
7. Mod 8 – Trunk Mod
a. Crd 1 – loop
b. Crd 2 – loop
c. Crd 3 – E&M
We recently moved into a new office bldg. that used to use PRI.
We only have 7 POTS lines, so doesn’t make too much sense to keep PRI.
But running into some trouble trying to find the Trunk pairs.
When I follow what should be the Trunk from the KSU to the 66 blocks, and then test what is on the first pairs, I get system extension numbers.
I wouldn’t think I would find ext. numbers on the trunk 66 blocks.
Mod 8 shows to be TRUNK from the system menu, so I also tested the 66 block too, and also get system extension numbers.
Do I also need to remove the PRI & ISDN cards.
We have another facility that has a Nortel ISC that is similar, w/ POTS lines only. It does not have any cards in the KSU.
On that system, the trunk line does go to a 66 block and that is where I patched in the POTS lines, but at the new facility, the trunk line has extensions on it.
BTW, when they left, they did remove a few pieces of equipment, from screws and stain patterns on the wall, I can see.
Not too sure what was there; a tech friend suggested maybe a CSU/DSU.
There is still a smart jack on the wall where the old DMARC lines route through, but are dead now.
Any help would be greatly appreciated
