NEC Univerge SV8100 Features And Specifications Manual page 799

UNIVERGE SV8100
IP to TDM Conversion
When an IP telephone calls a DT300 multiline telephone, a single line telephone or trunk, the speech
must be converted from an IP to TDM (Time Division Multiplexing) technology. The PZ-32IPLA/IPLB,
PZ-64IPLA/IPLB and PZ-128IPLA/IPLB daughter boards provide this function. Each PZ-32IPLA/IPLB,
PZ-64IPLA/IPLB and PZ-128IPLA/IPLB has a number of DSP resources on the blade, each one can
convert a speech channel from IP to TDM and vice versa. It is possible for DT700 IP telephones to talk
directly to other DT700 IP telephones without using PZ-32IPLA/IPLB, PZ-64IPLA/IPLB and
PZ-128IPLA/IPLB DSP resources.
DT700 IP Multiline Telephones (ITL)
The IP multiline telephone operates the same way as a DT300 (DTL) digital multiline telephone. The
DT700 has all of the features and flexibility you expect from a DT300 digital multiline telephone. The
difference is that the DT700 IP telephone uses an RJ-45 for connection to the IP network, rather than an
RJ-11 connection to a CD-8DLCA or CD-16DLCA.
Power Save Adapter (PSA-L UNIT)
The Power Save Adapter is an add-on module for the IP (DT700) and digital (DT300) multiline
telephones. The PSA-L UNIT allows connection to an analog trunk if the power or system connection
were to fail, or the IP telephone loses connection to the UNIVERGE SV8100 system. No programming is
required on the UNIVERGE SV8100 to support this adapter.
Connecting to an IP Telephone
The Power Save Adapter connects to an analog PSTN (Public Switched Telephone Network) line. For
example, at a small branch office this may be the same line that is used for faxes/modems/etc. The
handset is also connected to the Power Save Adapter – You must unplug the handset from the IP
telephone and reconnect it to the adapter. This allows the speech path to be redirected to the handset
during network power failure.
LAN Connection
The IP telephone has two RJ-45 connections on the back marked PC and LAN. This allows the IP
telephone and a PC to share one cable run and switch port.
If installing an IP telephone at a location that has a PC connected to the data network, one of the
following methods can be used:
Using a different cable:

Leave the PC connected to the LAN.

Patch a switch port to the new cable run.

Connect a CAT 5 straight-through cable from the wall outlet to the LAN port on the IP telephone.

Sharing the existing cable:

Unplug the cable from the PC Network Interface Card (NIC).

IP Multiline Station (SIP)
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