NEC Univerge SV8100 Features And Specifications Manual page 1134

Issue 8.01
A Power Fail circuit is required. The CD-4COTB has Power Failure circuits on the first two

ports.
The PZ-4COTF daughter board does not have Power Fail or Fax Branch Exchange circuits.

Default Setting
None
System Availability
Terminals
All Multiline Terminals
Required Component(s)
PSA-L Handset Adapter

CD-4COTB

Related Features
None
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UNIVERGE SV8100
Power Failure Transfer