Additional Maintenance Procedures
555-233-143
5-30 Issue 1 May 2002
Simplex Mode Test Procedure
1. Repeat steps 1 through 7 of the ‘‘E&M Mode Test Procedure’’ on page
5-26.
2. Set the dip (option) switches for each of the two ports to be tested on the
Tie Trunk circuit pack to simplex mode.
3. Enter add trunk n to add a new (test) trunk group. Then enter information
for the following fields:
4. Locate the tie trunk port terminal connections at the cross-connect field.
Consult the appropriate table above for either 110-type or 66-type
hardware.
5. At the cross-connect field, disconnect outside trunk facilities from the
analog tie trunk ports and mark the disconnected wires for later when the
tie trunk ports are placed back into normal operation. The D impact tool
(AT-8762) is required to perform this step.
6. Use jumper wires (DT 24M-Y/BL/R/G) and the D impact tool to connect
wiring between the two ports assigned in step 4 at the cross-connect field.
For example, if the two ports on the analog Tie Trunk circuit pack are ports
1 and 2, connect the wirings as shown below:
7. Repeat step 13 through step 16 of the E&M Mode Test Procedure.
Group Type tie
TAC Use trunk access code obtained from dial plan.
Trunk Type (in/out) wink/wink
Port Assign two of the ports from the tie trunk.
Mode simplex
Type type 5
Port 1
(type 5)
(simplex)
Port 2
(type 5)
(simplex)
T1 connected to T12
R1 connected to R12
T11 connected to T2
R11 connected to R2
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