Power Failure Transfer - NEC Univerge SV8100 Features And Specifications Manual

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UNIVERGE SV8100

Power Failure Transfer ensures that a customer has access to the Central Office network during a power

outage. The CO/PBX tip and ring are automatically transferred to a DTH or ITH terminal multiline

terminal with a PSA-L adapter installed.

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 the

outside exchange (Dial Pulse or Dual Tone Multifrequency).

Multiline telephones with PSA-L adapter or single line telephones cross-connected at the

MDF can be used for this feature.

Single Line or PSA-L equipped multiline telephones and outside lines connected during

power failure are fixed one-to-one.

Single line telephones must be equipped with a ground start button for use with Ground

Start Trunks.

System features cannot be activated from single line telephone or multiline telephone with

PSA-L adapter when Power Failure Transfer is in operation.

When power is restored to the system one of the following happens dependant on whether

a single line telephone or multiline telephone with PSA-L adapter is used:

Single Line Telephones

Power Failure Transfer is cancelled. Calls in progress on Power Failure Transfer lines are

disconnected.

Multiline Telephones with PSA-L Adapter

Calls in progress continue but the display does not show the date, time and system

softkeys. When the user hangs up, the phone automatically switches to Digital mode and

the display returns to normal.

Refer to the UNIVERGE SV8100 System Hardware Manual for the MDF Pin Numbers and

PFT 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.

Power Failure Transfer

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