UNIVERGE SV8100 Issue 5.0Power Failure Transfer 1 - 787Power Failure TransferDescriptionPower Failure Transfer ensures that a customer has access to the Central Office network during a poweroutage. The CO/PBX tip and ring are automatically transferred to a DTL or ITL multiline terminal with aPSA-L adapter installed.Conditions The PSA-L is not supported on DTL-2E-1, DTL-6DE-1, ITL-2E-1 and ITL-6DE-1 terminals. The single line telephones that are installed must provide dialing signal accepted by theoutside exchange (Dial Pulse or Dual Tone Multifrequency). Multiline telephones with PSA-L adapter or single line telephones cross-connected at theMDF can be used for this feature. Single Line or PSA-L equipped multiline telephones and outside lines connected duringpower failure are fixed one-to-one. Single line telephones must be equipped with a ground start button for use with GroundStart Trunks. System features cannot be activated from single line telephone or multiline telephone withPSA-L adapter when Power Failure Transfer is in operation. When power is restored to the system one of the following happens dependant on whethera single line telephone or multiline telephone with PSA-L adapter is used:Single Line TelephonesPower Failure Transfer is cancelled. Calls in progress on Power Failure Transfer lines aredisconnected.Multiline Telephones with PSA-L AdapterCalls in progress continue but the display does not show the date, time and systemsoftkeys. When the user hangs up, the phone automatically switches to Digital mode andthe display returns to normal. Refer to the UNIVERGE SV8100 System Hardware Manual for the MDF Pin Numbers andPFT Connections (Power Failure Transfer Relay 1). The PSA-L adapter can be set to send DTMF or DP. The PSA-L is supported on Loop Start Trunks only.
