Audio Location; Receiver Activity Indication (-Rxi); Monitor Mode; Telephone Control - PS Engineering PAC45D System Installation And Operation Manual

3.4.3 Audio Location

The pilot section of the panel controls the
locations for the five communications re-
ceive audio locations. Press and hold the
TEL button for three (3) seconds on the
audio panel until the TEL button and all
COM nomenclature start blinking green.
Set the pilot mic selector to the COM to
be adjusted.
Then rotate the RAD receive volume knob
so the pointer indicates the approximate
location of the desired location. A voice
announcement will accompany the knob
rotation with the clock positions. Re-
ceived audio shall then be presented from that location. Rotate the pilot mic selector to the next
radio to be adjusted and repeat until all locations have been set as desired.
Press the TEL button again to exit the mode. The audio Controller will remember last state through
power cycles.

3.4.4 Receiver Activity Indication (-RXI)

PAC45D systems have a Receive Activity Indicator that flashes the selected receiver indicator
when a signal is present on that receiver. This allows the user to spot an active radio, even if the
volume is turned down. This function is set at the factory at the installer's request, and can be
changed only at the factory.

3.4.5 Monitor Mode

With the toggle switch in the "down" position, the PAC45D is in Monitor Mode. In this mode, the
audio from the COM radio that is selected for transmit will mute the other COM audio when it is
active. For example, if COM 1 is selected to transmit to ATC, but COM 2 is receiving weather in-
formation; the ATC will mute the audio from the weather while ATC is transmitting. In Monitor
mode, the RCV COM indicator will blink every few seconds as a status indication.
Navaid Selection
Navigation receivers are selected in the same manner as
the communication receiver, select the toggle switch to
the UP position.

3.4.6 Telephone control

The button connects the audio controller to either a Bluetooth-enabled cell phone or a wired
cellular/satellite phone.
The TEL button behaves as follows:
•
If TEL is "white" then an incoming call MUST be answered with the TEL button.
•
If TEL is "green" then an incoming call MUST be answered with the Phone.
•
If TEL is "green" and you are on a active call then pressing TEL disconnects the call.
•
Active calls can also be disconnected from the phone at any time.
200-045-0100
PS Engineering
PAC45A Audio Selector Panel and Intercom System
Installation and Operator's Manual
Figure 3-2 Spatial Audio Locations and Voice An-
nunciations
Page 3-3 January 2020