Specifications

PS Engineering 
PMA7000M-S Series Audio Selector Panel and Intercom System 
Installation and Operator’s Manual for Civil Air Patrol 
200-072-0004  Appendix F  Rev. 4, Sept. 2000 
Appendix G RTCA DO160C Environmental Qualification Form 
Audio Selector Panel/Intercom/Maker Beacon Receiver 
Part Number: 7000; 7000M; 7000S; 7000M-S 
FAA TSO Number: C50c, C35b Class A 
Manufacturer: PS Engineering Incorporated   9900 Martel Road  Lenoir City TN 37772   
Conditions  Section  Conducted Tests 
Temperature and Altitude 
Low Temperature 
High Temperature 
In-flight Loss of Cooling 
Altitude 
Decompression 
Overpressure 
4.0 
4.5.1 
4.5.2 
4.5.4 
4.6.1 
4.6.2 
4.6.3 
Equipment tested to CAT A1 & D1 
-20° C Storage, -15°C Low Operating 
+85°C Storage, +70°C High Operating 
Not Applicable, no cooling required 
50,000’ unpressurized 
Not Applicable 
Not Applicable 
Temperature variation  5.2  Equipment tested to Category C 
Humidity  6.0  Equipment tested to Category A 
Shock  7.0  Equipment tested to Operational test only 
Operational  7.2  Equipment tested to Operational test only 
Crash Safety  7.3  Equipment tested to Operational test only 
Vibration  8.0  Equipment tested to Category M & N 
Explosion  9.0  Category X, not tested 
Waterproofness  10.0  Category X, not tested 
Fluids Susceptibility  11.0  Category X, not tested 
Sand and Dust  12.0  Category X, not tested 
Fungus  13.0  Category X, not tested 
Salt Spray  14.0  Category X, not tested 
Magnetic Effect  15.0  Equipment tested to Category Z 
Power input  16.0  Equipment tested to Category B 
Voltage Spike  17.0  Equipment tested to Category B 
Audio Frequency Susceptibility  18.0  Equipment tested to Category B 
Induced Frequency 
Susceptibility 
19.0  Equipment tested to Category B 
Radio Frequency Susceptibility  20.0  Equipment tested to Category T 
Radio Frequency Emission  21.0  Equipment tested to Category B 
Lightning Induced Transient 
Susceptibility 
22.0  Equipment tested to Category K 
Lightning Direct Effects  23.0  Category X, not tested 
Icing  24.0  Category X, not tested 










