Power Fail Options
40 XN120 Expansion Unit Guide
When Power Fail is set to OFF (marked KT on the card):
When the power fails (or the XN120 is switched off) Exchange line CO1 is not
automatically connected to
socket ST8.
When the XN120 is powered on the telephone in socket ST8 will operate as a either a normal XN120 telephone
or XN120 system phone, depending on which type is plugged in.
You can use an XN120 system phone in socket ST8 with the power fail link set to KT.
Power Fail Options when the 64 Button Console is also Installed
· The 64 Button Console must be connected to socket ST8 of the XN120 unit.
· You must ensure the power fail link (CN500) is set to KT for the console to work correctly.
· You cannot use socket ST8 for power fail operation when the 64 Button Console is connected to ST8.
If you have a 64 Button Console installed
· You can use the power fail operation of the optional 308 expansion card, if you have one installed.
There must be an exchange line connected to the first CO port of the 308 expansion card.
· You can connect the normal telephone directly into the exchange line socket – See instruction above.
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