PS Engineering PMA6000B - Manual (Page 5)

PS Engineering
PMA6000B Audio Selector Panel and Intercom System
Installation Manual
200-066-0200 Page 1-2 Rev 6, Feb. 2013
1.4 APPROVAL BASIS – FAA & EASA
TSO/ETSO Approval.
The PMA6000-series are FAA approved under TSO C50c (Audio Amplifiers) and TSO C35d (Marker
Beacon Receivers).
The PMA6000-Series is EASA Approved under ETSO C50c and ETSO 2C35d, ref
EASA.IM.210.10028565
All systems comply with RTCA DO-143, DO-160B DO-170, and EUROCAE WG No. 7/70.
Operation is subject to the following conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received, including interference that may cause unde-
sired operation.
1.5 SPECIFICATIONS
GENERAL SPECIFICATION TSO COMPLIANCE:
Marker Beacon: C35d, Class A
Audio Selector/Intercom: C50c, Class A
APPLICABLE DOCUMENTS: RTCA DO-160b, RTCA DO-170 and RTCA DO-143
ENVIRONMENTAL Qualifi-
cations:
A1D1/CAMXXXXXXXBBBBAAX
Temperature Range: Operating: -20°C to +55°C
Storage: -40°C to +85°C
Altitude: Up to 50,000 feet in an 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
WEIGHT (With Rack & Con-
nectors) : 1.5 Lb. (0.68 kg.)
POWER REQUIREMENTS (Including Internal Lighting):
Voltage
Maximum Current:
Typical operating current:
13.75 or 27.5 VDC*
1 Amp (Externally protected by a 2 Amp circuit
breaker.)
speaker off:
350 mA
speaker on: 600 mA
*27.5 VDC requires 15W dropping resistor (included).
Audio selector panel input im-
pedance 510 
Input Isolation -70 dB (min.)
Speaker Muting -60 dB (min.)
Speaker Output (into 4 ): 3 Watts (min.) with no clipping
Switched Receiver Inputs: 8 (Com 1, Com 2, Nav 1, Nav 2, ADF, DME, MKR,
AUX)
Unswitched Inputs 2
Transmitter Selections 3; Com 1, Com 2, Com 1/2
Speaker Impedance: 4 
Headphone Impedance 150 - 1000 
Headphone Output: 45 mW each headset with no clipping
Microphone Impedance: 150 - 600 
Intercom Positions: 4 places
Music Inputs: 2
Music Muting: >50 dB "Soft Mute" when Radio or intercom active.