PS Engineering PAC24 Installation Manual - Manual (Page 5)

PS Engineering
PAC24 Series Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-240-0010 Page 1-2 Rev. 24, Dec. 2013
Push button switches select the communication transceivers in use for the pilot and copilot position, and
allow radio transmission. In "Split Mode" the PAC24 has the ability to allow the pilot and copilot to oper-
ate different transceivers independently. The Com 5/TEL mode (selected at installation) allows the pilot to
use the audio panel for duplex operation, such as with aviation-specific cellular telephones.
A fail-safe mode connects the pilot headphone and microphone to COM 1 if power is removed for any
reason, or if the power switch is placed in the Off (Fail-safe) position.
A voice activated (VOX) intercom is included in the PAC24. This system has PS Engineering’s exclusive
IntelliVox® circuitry that eliminates manual adjustments. The system contains six separate VOX mic cir-
cuits, and only opens the specific microphone channel in use.
The intercom system incorporates pilot isolate and crew modes, a monaural music input with "Soft Mute,"
and LED indicators transmit indications. Intercom control is through front panel-mounted knob and 3
position mode switch. A single volume controls intercom level for the pilot and copilot. Passenger head-
phone volume is factory set, and adjusted in flight with headset-mounted volume controls. Passenger vol-
ume control is further adjustable through screwdriver access in the top of the unit. Intercom squelch is
automatic.
The PAC24 is form fit and function compatible with the King Radio KMA24H, part number 066-1055-
71, and may be compatible with 066-1055-70.
1.4 APPROVAL BASIS -
FAA-TSO Approval.
The PAC24 Audio Selector Panels are FAA approved under TSO C50c (Audio Amplifiers). In addition,
the PAC24 is JAA-JTSO approved under LBA.N-O.10.510/003JTSO.
All systems comply with relevant portions of EUROCAE ED-14C/DO-160D (Environmental Conditions and Test
Procedures for Airborne Equipment), ED12B/DO-178B (Software Considerations for Airborne Equipment) and ED-
18/DO-214 (Audio Systems Characteristics and Minimum Operational Performance Standards for Aircraft Audio
Systems).
NOTE: The recorder contained in Option 1 is not TSO-approved, and the installer must determine the relevant ap-
proval basis prior to installation. Contact PS Engineering for information regarding FAA approval.
Operation is subject to the following conditions:
This device may not cause harmful interference.
This device must accept any interference received, including interference that may cause undesired opera-
tion.
1.5 SPECIFICATIONS
TSO COMPLIANCE
Audio Selector/Intercom: C50c, Class A
APPLICABLE DOCUMENTS: RTCA/DO-214
RTCA/DO-160D
RTCA/DO-178B
ENVIRONMENTAL Qualifications: B1ZCABSRXXXXXXZBBBATMXXE2XXX
Temperature Range:
Operating:
Storage:
-20ºC to +55ºC with short term operating at +70°C
-55ºC to +85ºC
Altitude: Up to 50,000 feet in a non-pressurized area of the
cockpit.
DIMENSIONS: Height: 1.3 in. (3.3 cm) Width: 6.25 in. (16.9 cm)
Depth: 6.8 in. (17.3 cm) behind panel
WEIGHT (With Rack & Connectors): 1.5 lb. (0.54 kg)