Pilot USA PA-400ST User Manual
Page 4

4
4.0 Fail-Safe Feature
The PA-400ST intercom is equipped with a Fail-Safe feature. This means if your batteries fail, you will still
be able to hear ATC transmission - but the level of volume will be reduced. If this should occur, you can
connect the auxiliary power cord, supplied with your intercom, to the cigarette lighter jack in the aircraft.
4.1 PTT / Y-Adapter Set-Up
Up to 2 Portable PTT switches can be used with this unit. The Pilot and Co-Pilot can connect a portable PTT
switch by connecting the PTT’s microphone plug to its’ Y-adapter. The Y-adapter would plug directly into the
aircraft.
4.2 Warranty Service
If your unit requires service we recommend you send it directly to Pilot Communications USA so the repair
or replacement can be expedited. Please remember you are sending an electronic component and package
the unit appropriately. We recommend FedEx or US Priority Mail. Please ship prepaid and enclose $12.00
for return shipping & handling.
4.3 Technical Specifications
Power: 2 Alkaline 9V Batteries or Auxiliary Power Cord
Current Drain: Leakage 0 mA Standby; 10 mA In Use
Dynamic Response: 500mS (VOX controlled) Off - 12mS (VOX controlled) On
Volume Control: 35 dB
Battery Lifetime: 40-50 Hours Of Use
Headphone Interface: PJ-055B, (M642/4-1) MIL-P-642
Microphone Interface: PJ-068 (M642/5-1) MIL-P-642
Cell Phone Interface: 2.5mm Plug
Auxiliary Power Cord: UL Approved, Fuse 2A-125V or 250V Fuse
Pilot Communications USA
70 Maxwell
Irvine, CA 92618
Toll Free: 1-888-GO-PILOT Tel: 949-748-8880 Fax: 949-748-8881