Trouble on More Than One Voice Terminal
Tel. Co. Lines Test
This test should be performed when the trouble appears only on outside calls and
when the trouble is caused by either the control unit or the expansion module.
Step 1.
Step 2.
Step 3.
Step 4.
Step 5.
Step 6.
Step 7.
Add to your notes the Tel. Co. Lines jack letter (A through H) of the
telephone number on which the trouble appears. (Refer to your system
directory if necessary.)
Caution:
If the line cords and terminal cords are not properly
labeled, then you should label them now. Each modular
line cord should be labeled at both ends with the letter
of the Tel. Co. Lines that it is connected. Also, each
modular terminal cord should be labeled at both ends
with the number of the Voice Terminals jack that it is
connected.
Disconnect all of the modular terminal cords and modular line cords from
both the expansion module on which the trouble appears and an expansion
module with no trouble.
Place the control unit
On/Off
switch in the
Off
position. If an auxiliary
power unit is used, unplug it from the ac outlet.
Warning:
Remove control unit ac power (using the control unit
On/Off switch) before inserting or removing an expan-
sion module. If you are using an auxiliary power unit,
unplug it from the ac outlet.
Switch the expansion module on which the trouble appears and the expan-
sion module with no trouble.
Connect the modular line cord back into the
Tel. Co. Lines
jack on which
the trouble appears. To determine where to connect the cord, match the
line cord label to the
Tel. Co. Lines
jack letter on the faceplate (see Fig-
ure 36).
At the two
Tel. Co. Lines
jacks that do not have terminal cords con-
nected to them, connect a modular line cord to the jack that is on the same
level as the line cord connected in Step 5. For example, if the line cord in
Step 5 was connected to
Tel. Co. Lines.
jack A, then the line cord con-
nected in this step would be connected to jack C (see Figure 36).
Connect a modular terminal cord back into one of the
Voice Terminals
jacks of the expansion modules. The terminal cord label must match the
Voice Terminals
jack number (see Figure 36).
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