
1.7Useful Features
Power Failure Transfer
During a power failure, each of the following outside (CO) lines will be connected to an assigned extension.
Outside (CO) line 1: extension jack 01
Outside (CO) line 4: extension jack 09
! | • During a power failure, all features cannot be used except for incoming and outgoing | |
outside calls from extension jacks 01 and 09. | ||
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•If extension jacks 01 and 09 are connected to proprietary telephones, disconnect the units and connect single line telephones.
•Automobile type batteries, which are customer supplied, can be connected as a system back up power supply to operate all the features during a power failure.
•The batteries can be connected directly to the unit with optional cables. For more information, refer to the Installation Manual.
☞• See the Installation Manual, Section 3, “Power Failure Transfer”.
Lockout
If one party in a conversation goes
Advanced Operations