Telephone Sidetone; Swap" Mode; Backlighting; Unswitched Inputs - PS Engineering PAR200B System Installation And Operation Manual

PAR200B Audio Selector Panel, COM radio Controller and Intercom System
FCC Regulations (47 CFR 22.925) prohibit airborne operation of cellular phones;
Cellular telephones installed in or carried aboard airplanes, balloons or any other type of aircraft must not
be operated while such aircraft are airborne (not touching the ground). When any aircraft leaves the ground,
all cellular telephones on board that aircraft must be turned off. The use of cellular telephones while aircraft
is on the ground is subject to FAA regulations.
FAA Regulation 14 CFR 91.21(5) allows for use of portable electronic devices that the operator of the air-
craft has determined will not cause interference with the navigation or communication system of the air-
craft on which it is to be used.
PS Engineering, Inc. does not endorse using unapproved cellular telephone equipment in flight, and takes
no responsibility for the user's action. PS Engineering does not guarantee compatibility with personal cellu-
lar telephones. For a list of phones that have been tested, visit www.ps-engineering.com.
2.6.2

Telephone sidetone

The PAR200B is shipped from the factory with Telephone sidetone enabled. The PAR200B will provide
cell phone sidetone (your voice of the telephone conversation). Some telephones already provide sidetone,
and the PAR200B can be configured to disable internal sidetone during a phone call, this can be selected
from the user phone screen when a call is made.
2.6.3

"Swap" Mode

When a momentary, normally open, push-button switch is connected between pin 20 on the J2 connector and
aircraft ground, the user can switch between Com 1 and 2 by depressing this switch without having to turn
the mic selector switch. This yoke-mounted switch eliminates the need to remove your hands from the yoke
to change transceivers.
2.6.4

Backlighting

The PAR200B has an automatic dimming of the pushbutton green annunciation LEDs controlled by a
photocell. Control of the unit white backlighting is through the aircraft avionics dimmer. For 12-Volt air-
craft, connect J2 Pins 6 and 7 to the aircraft dimmer bus, and pin 5 to ground.
The OLED display backlighting is controlled by the automatic photocell dimming.
If an external dimmer control is not used, a constant maximum back light illumination can be established for
viewing. Pin 6 or 7 (depending on system voltage) must be tied to power (J2, pin 8 or 9) for the back-lighting
system to work. The photocell mounted in the unit face will automatically adjust the intensity of the push-
button annunciation green LEDs.
2.6.5

Unswitched inputs

J1, pins 31, 44, 29 and J2 pin 15 are unswitched, unmuted (by transmitter keying), inputs # 1, 2, 3 and 4,
respectively. These inputs are presented to the pilot and copilot regardless of the audio configuration, and will
mute the entertainment inputs based on the music muting mode. These 510 Ω inputs can be used for altimeter
DH audio, GPS waypoint audio, autopilot disconnect tones, or any other critical audio signal. Unswitched #1
is always presented to the crew headphones, and is available to the pilot left headset channel (J2 pin 16) in
fail-safe (off) mode.
Unswitched
Table 2-3 Unswitched input table
Inputs 1, 2 and 4 are fixed (1:1), and any audio level adjustments must be made at the input source. Unswitched #3 has a
variable adjustment control located on the bottom side of the unit. This control allows you to control the volume level of
that unswitched input from 50% to 200% of the input level. Refer to Adjustments section.
200-228-0300
PS Engineering Inc. ®
Installation and Operator's Manual
NOTE
Hear in
Input Fail Safe
1 Yes
2 No
3 No
4 No
NOTE
Page 2-7
Hear in Gain
Crew Headset
Yes 1:1(fixed)
Yes 1:1(fixed)
Yes Adjustable
Yes 1:1(fixed)
October 2019