No | Noise encountered during | |
| conversation? | |
| Yes | |
| Check power supply of the | |
| exchange |
|
| Check wiring | between the |
| exchange and | external |
| equipment (BGM, timer) |
Check wiring between
Replace CC
(2)Noise is heard from the station
Yes
All | stations? |
|
|
| No |
|
|
Noise encountered during | No | ||
conversation? |
|
| |
| Yes |
|
|
Wired in a proper | pair? | No | |
| |||
| Yes |
|
|
Cable contains any computers | Yes | ||
data lines? |
|
|
|
| No |
|
|
Replace | station | LM |
|
(3) No conversation can be heard
No
All stations?
Yes
Replace CC
(4) | Paging is impossible. |
No
Did you make proper No.24 programming
Yes
Make No. 24 programming
Check wiring between the exchange and station
Wire in a proper pair
Separate from computers data lines
Replace station | LM |
Replace LM CC
(5) Other troubles
Additional functions cannot be operated.
Wrong wiring. Wrong DIP switch settings. Error in No. 24 programming.
Selectable functions cannot be operated.
Error in No. 24 programming.
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