User guide

14
Checking Out The System
• Ensure that all the phones are operative, set to Tone and Timed break
recall (usually marked as T, TB, DTMF& TBR,MF&TBR). Please note that
the Multi 4 does not support the use of phones which are PULSE, LOOP
DISCONNECT (LD) or EARTH RECALL(E,ER).
• Check there are no wiring mistakes and that all the extension phones are
plugged in.
• Plug in the Multi 4 ac mains lead and switch on. Do not plug into the
exchange line master socket yet.
• Make an internal call from one extension to another.
• Ensure that the ringer works correctly and that the speech is clear and
noise free. Repeat this procedure to check all the extensions.
• Switch off the power to the Multi 4 and plug the exchange line cord into
the exchange line master jack socket.
• Lift the handset at extension 1 - you should hear the public exchange dial
tone. Now make an outside call to check the exchange line. Replace
handset.
• Switch on the mains power again.
• Make another outside call from extension 1. This time dial 9 followed by
the external number. Refer to Using the Multi 4 section of this handbook.
If a fault is found during the above, switch off the mains power, remove the
exchange line cord from its socket and check that the wiring is correct.
Under no circumstances must the cover of the Multi 4 be removed
without first disconnecting the ac mains and removing the exchange
line cord.
INSTALLATION