NEC Electra Elite 192, Hardware Manual

Page: 298 / 369

Issue 6 Electra Elite
7 - 16 Installing Optional Equipment
3.4 APR-U Unit (Analog Port Ringer)
The Analog Port Adapter with Ringing is the interface for installing
Single Line Telephones, modems, NEC VoicePoint/VoicePoint Plus
Conferencing unit, and other compatible analog devices. The
APR-U Unit also generates ringing signals. By providing ring
generation, the user can install a personal fax machine or an
answering machine for convenience. Two user-adjustable
switches are provided on the adapter; one allows for 600
Ω
or a
complex impedance interface to devices such as a modem or
Single Line Telephone, the second switch (SW1) is set to position
2.
An AC Adapter is required.
If a CTA-U, CTU(C)-U, CTU(S)-U, HFU-U or VDD-U Unit and an
APR-U Unit are both installed, only one AC Adapter is required.
3.4.1 Installing an APR-U Unit on any DTP/DTU Multiline
Terminal except DTP-2DT-1(WH) and DTP-16HC-1(BK)
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 7-20 Attaching the
Unit to the Multiline Terminal .
Figure 7-19 APR-U Unit
ACA-U Unit
(AC Adapter)