DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Additional Maintenance Procedures
6-35Analog Tie Trunk Back-to-Back Testing
6
10. Locate the Tie Trunk port terminal connections at the c ross-connect field.
Consult the appropriate tab le below for either 110-type or 66-type
hardware.
11. At the cross-connect field , disconnect outsid e trunk facilities from the Tie
Trunk ports and mark the disconnec ted wires for reconnecting the Tie
Trunk ports to their normal configuration later. The D Impac t Tool (AT -8762)
is required to perform th is step.
12. Use jumper wires (DT 24M-Y/BL/R/G and DT 24P-W/BRN) and the D
Impact Tool to connect wiring b etween the two ports assigned in Step 9 at
the cross-connect field . For example, if the two ports on the Analog Tie
Trunk circuit pack are port 1 and 2, connect the wirings as shown below:
13. Check all wirings to verify g ood connections bet ween the two test ports.
14. Place a call from one voice terminal to another voice terminal using the Tie
Trunk ports assigned. Dial TAC and extension. For example, if TAC of Tie
Trunk group is 110 and station number is 5012, then d ial 110 5012. If the
call cannot be mad e, either one of these ports could be defective. There
are four ports on the TN760. Try different combinations to det ermine
defective ports.
15. If there is a defective por t on the circuit pack, tr y to switch to an unused
port. If all ports are normally use d, then replace the circ uit pack.
16. Disconnect the jumpers b etween two ports. Then use administration
terminal and trunk printouts to restore al l trunk group changes to normal
values.
Port 1
(t1 stan)
(E & M)
Port 2
(t1 comp)
(E & M)
T1 connected to T12
R1 “R12
T11 “ T2
R11 “ R2
E1 “ M2
M1 “ E2