NEC ElectraElite 48, System Hardware Manual

Page: 304 / 435

Electra Elite Issue 6
System Hardware Manual 7 - 13
3.3 APA-U Unit (Analog Port Adapter)
The Analog Port Adapter without Ringer is the interface for
installing Single Line Telephones, Modems, Credit Card Readers,
Wireless Headsets, NEC VoicePoint/VoicePoint Plus Conferencing
unit, and other compatible analog devices. The APA-U Unit does
not generate ringing signals. One user-adjustable switch with two
settings is provided on the adapter. Setting 1 allows impedance to
be set to 600
:
for devices such as modems. Setting 2 is used for
complex impedance devices such as a Single Line Telephone.
3.3.1 Installing APA-U Unit on any DTP/DTU Multiline Terminal
except DTP-2DT-1 and DTP-16HC-1
1. Prepare Multiline Terminal for adapter installation.
Refer to
Section 2 Preparing Multiline Terminal for
Adapter Installation .
2. Plug the unit into the receptacle connector inside the
base plate. Refer to
Figure 7-16 Attaching the Unit
to the Multiline Terminal .
The APA-U Unit
does not
require an ACA-U Unit to
supply external power.
Figure 7-15 APA-U Unit