SYMPTOM: Trouble with voice terminal lights, speaker, and ringing (continued).
Possible Cause 3: Cable | connections. |
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Do This |
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Step 1. | The trouble still occurs on | The problem is caused by | ||||
Go to the control unit and | the previously working voice | your control unit. Call your | ||||
locate the intercom jack for | terminal |
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| equipment supplier for | ||
the malfunctioning voice |
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| assistance. |
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terminal and an intercom |
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| The trouble is caused by a | |||
jack for a working voice | The trouble | no | longer | |||
terminal. Unplug both from | occurs on the working voice | cable (there may be more | ||||
the control unit and replug | terminal |
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| than one) in the wiring run | ||
each into the other's jack |
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| to the malfunctioning voice | ||
See if the trouble occurs on |
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| terminal. | However, | check |
the working voice terminal. |
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| the previous two causes | ||
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| for this symptom first. If the | ||
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| problem persists go on to | ||
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| Step 2 of this cause. |
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Step 2. | The trouble | still | occurs | Check the connection; if | ||
Test each cable in the |
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| the connections are | correct | |
wiring run to the previously |
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| and secure, remove the | ||
malfunctioning voice |
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| second cable in the wiring | ||
terminal by following this |
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| run and replace it with | ||
procedure: |
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| another Cable that is known | ||
a. Connect the wiring run |
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| to work | properly. If | the |
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| problem | still occurs, | replace | |
to a functioning voice |
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| the third | cable in the run | ||
terminal. |
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| and so on until all the cable | |||
b. Replace the first cable in |
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| in the run has been |
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the wiring run with one |
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| replaced. If the problem | ||
known to be working. |
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| still persists, call your local | ||
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| equipment supplier for | ||
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| assistance. |
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| The trouble no longer | The cable was the source of | ||||
| occurs |
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| the problem; discard | the | |
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| malfunctioning cable. | ||
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