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2.8
Engineering Checks
2.8.1
Installation Checks
Once the equipment has been installed, the MicroSwitch exchange should be powered up and
the indicator observed on the front panel to ensure that power is reaching the unit. Each
installed board should have the power LED illuminated.
A systematic check should now be made of all 'in-service' telephones to ensure that each
telephone is capable of dialling another telephone and is capable of being dialled. The speech
quality of each telephone should also be checked when each telephone is dialled.
Having verified the basic operation of each telephone, one of the Officer Class telephones
should be used to check the operation of each external line and to check that all the features
are working
It is recommended that no special programming of the MicroSwitch exchange should be
performed until satisfactory operation of the complete system has been established.
In the event of a fault being found during the installation checks, the following engineering
checks should prove useful in identifying the cause. Further help can be obtained by referring
to the Fault Finding section later in this document.
2.8.2
Bell Check
If you lift the receiver, dial *6, then replace the receiver, the telephone should ring to enable
the amplitude and operation of the bell to be checked.
2.8.3
Extension Number Check
If you dial your own extension number a high pitched 'busy' ringing tone should be heard.
2.8.4
Off-Hook (locked out) Extensions
A print out of all off-hook (locked out) extensions can be obtained from the call logging port
by dialling 73 when in Engineering Facility mode.
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