Basic Trouble Tests
Step 1.
Determine the extent of the problem by placing a series of outside calls.
These outside calls should be placed from more than one voice terminal.
Be sure all of the outside calls are not placed from the same columns of
Voice Terminals
jacks (jacks 10 though 14 is one column). See Figure 1.
Remember each voice terminal will have an intercom number that is the
same as the number of the voice terminal jack that it is connected.
IF
THEN
The trouble does NOT appear on
calls outside of your business,
The trouble does appear on outside
calls (on only one voice terminal),
The trouble is caused by some
component of your system. Go to
the “Symptom-Based Tests.”
The trouble is caused by some
component of your system. Go to
the “Symptom-Based Tests.”
The trouble does appear on outside
Either the local telephone company
calls (on more than one voice ter-
equipment or your system could be
minal),
the cause. Go on to Step 2.
Step 2.
Determine if you have a standard telephone with a modular cord/plug.
Note:
You may be using a standard telephone with a modular cord/plug
as a power failure transfer telephone. The power failure transfer
telephone is the telephone connected to the Type III Cartridge in
the control unit. The power failure transfer telephone can be
used for this test, but a Model 820 voice terminal cannot.
IF
You have a standard telephone
with a modular cord/plug (it must
also be compatible with the tone or
rotary dialing service provided by
the local telephone company),
You do not have a standard tele-
phone with a modular cord/plug
and cannot make an outside call,
You do not have a standard tele-
phone with a modular cord/plug
but you can make an outside call;
however, there is a problem after
you are connected with the person
you called (for example, conversa-
tion is not clear),
THEN
Go on to Step 3.
Go to the “Symptom-Based Tests”
section.
Go to the “General Tests” section.
Page 10
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