NEC Univerge SV8100 System Hardware Manual page 678

Issue 1.0
P
S 13
OWER
ECTION
13.1
11 - 88
2. Answering Calls:
If you receive a call via PSTN during a conversation via
LAN, answer the call by completing the LAN call and
placing the handset back into the cradle. Change the
LAN/PSTN Change Switch to PSTN and then lift the
handset to answer the call. If you change the LAN/PSTN
Change Switch to the PSTN position while talking via
LAN, the LAN call is disconnected.
Other than receiving calls, no other terminal functions are
available.
3. Adjusting the Ring Volume
Use the Volume Control Switch located on the PSA-L adapter
to adjust through the three available volume levels.
Other than receiving calls, no other terminal functions are
available.
4. When Power is Restored
The IP keyset restarts and reconnects to the network LAN.
However, if you are on a PSTN call when the power is restored,
your conversation continues until the handset is placed in the
cradle. Once this occurs, the IP terminal restarts and
reconnects to the LAN.
Other than receiving calls, no other terminal functions are
available.
F T
AILURE ELEPHONES
Power Failure
The system allows connection for basic telephone service during a power
failure. The power failure operation occurs during a commercial power failure,
and is not affected by blade failure. Power Failure Transfer is provided by
connecting to the CD-4COTB blade.
The CD-4COTB Blade provides 2 Power Failure Transfer circuits.
The CN3 and CN5 connectors each provide connection to four analog trunk
ports, which are polarity sensitive (tip to tip, ring to ring). The power
failure circuits, however, are not polarity sensitive. A maximum of 15
CD-4COTB blades per system is allowed.
UNIVERGE SV8100/SV8300
Installing SV8100/SV8300 Optional Equipment