Power Failure Transfer - NEC UNIVERGE SV9100 Features And Specifications

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Power Failure Transfer

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 DTL or ITL terminal multiline terminal

with a PSA-L adapter installed.

Refer to the UNIVERGE SV9100 System Hardware Manual for the MDF Pin Numbers and PFT

Connections (Power Failure Transfer Relay 1).

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 depending on which

telephone (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.

The PSA-L adapter can be set to send DTMF or DP.

The PSA-L is supported on Loop Start Trunks only.

A Power Fail circuit is required. The GCD-4COTA has Power Failure circuits on the first two

The GPZ-4COTE daughter board does not have Power Fail or Fax Branch Exchange

Default Settings