Apa And Apr Adapters (Figure 4-39 - Figure 4-40); Installing The Apa Or Apr Adapter - NEC Aspire S Manual

Section 4: Telephones and Optional Equipment

APA and APR Adapters (Figure 4-39 - Figure 4-40)

The APA and APR Adapters provide an analog interface for the keyset. The APR Adapter provides ringing
which allows the connected device to be used for incoming and outgoing calls. This adapter also provides a
separate extension number for the analog device, which allows both devices to be used at the same time (this
can be removed in system programming if you wish). The APA Adapter does not provide ringing, so the con-
nected device is used for outgoing calls only (for example, when using a modem). One keyset can have
either an APA or an APR Adapter. Both adapters cannot be installed on the same keyset as only one voice
path is provided by the keyset for the adapters. When installing the APR Adapter, an AC-R AC/DC
adapter (P/N 780135) is required for power. As this adapter requires the AC power adapter, it can not be
installed on a phone with an CTU or Speakerphone adapter, which also require power. The placement of the
AC power adapter plug will not allow the unit placed on the left of the phone to receive power.
The maximum distance between the APA or APR Adapter and the analog terminal is 49'.
With the APA adapter installed, when the analog device attached to the adapter is in use, the keyset cannot be
used as there is only one physical port number assigned to the phone. If both the analog device and keyset
are picked up at the same time, the analog device takes priority. If the keyset is on a call and the single line
telephone is picked up, the single line telephone will take the call from the keyset.
When installing the APR adapter, there must be an extension port available for the adapter or it will function
like an APA adapter (only one physical port assigned to the phone so only one phone can be used at a time).
When installing or removing the adapters, the keyset should first be unplugged from the system. Telephones
with any adapters installed cannot be wall-mounted. The bracket will not accommodate the adapter(s).
Neither the APA or APR Adapter supports reverse-polarity, message waiting lamping, or Caller ID.

Installing the APA or APR Adapter:

1.
2.
3.
4-38 ◆ Section 4: Telephones and Optional Equipment
These optional adapters cannot be installed on an Aspire 2-button phone or IPhone.
Unplug the line cord from the keyset.
If only one adapter is to be installed on the phone, the adapter should be installed on the right-hand
side of the phone (beneath the handset). Using a flat-head screwdriver, remove the plastic punch-
out piece covering the connector.
Set the dip switches on the APA/APR adapter to the required position.
●
The SW3 switch is used to set the terminating impedance. Setting to position "1" is for a pure
resistance of 600 ohms; position "2" is used for complex impedance (factory setting is set to
"1").
● The SW1 switch should be left at its factory setting of "1". This also applies to the dip switch
settings (1 and 5 = on; 2-4, 6-8 = off).
Aspire S Hardware Manual