NEC Univerge SV8100 Features And Specifications Manual page 728

Issue 13.0
3. Dial Relay Number (0~8).
0 is for the relay on the CD-CP00-US, 1~8 are relays on the PGD(2)-U10 ADP.

- OR -
1. Press the Line Key assigned as a General Purpose Relay (the key is not lit).
- OR -
1. Wait for the drive timer to expire.
Single Line Telephone
1. Press Speaker.
2. Dial 780.
3. Dial Relay Number (0~8).
0 is for the relay on the CD-CP00-US, 1~8 are relays on the PGD(2)-U10 ADP.

- OR -
1. Wait for the drive timer to expire.
2 - 694
UNIVERGE SV8100
General Purpose Relay