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When using the drop-in cradle, the 9-pin D-Sub connector on the 16" cable pigtail is fed through the
mounting surface behind the cradle.
Cable Harness Wiring
Refer to the included wiring diagrams for pin out configurations. All wires must be MIL-SPEC in
accordance with current regulations. All 2 conductor shielded wire should be MIL-C-27500 or equivalent
(with solder sleeves for shield termination) and must be used where specified. Proper stripping, shielding
and soldering techniques must be used at all times.
Refer to FAA Advisory Circular AC 43.13-2A for more information. Failure to use correct techniques
may result in improper operation, electrical noise, and/or unit failure. Damage caused by improper
installation will void warranty.
Noise
Due to the variety and high power of equipment in today's aircraft, there is a potential for both electrical
and conducted noise interference. To minimize the occurrence of noise being introduced into the system,
please follow these installation guidelines.
Do not bundle any lines from this unit with transmitter coax lines.
Do not bundle any lines from this unit with any other audio or high voltage power lines.
Do not bundle any lines from this unit with 400 Hz synchro wiring or AC power lines such as
strobes or inverters.
Do not position this unit or route wiring from this unit next to any device with a strong alternating
magnetic field such as an inverter.
Use shielded wire where shown and ground as indicated.
Post Installation Check
After installation wiring is complete, verify power is on pin 1 only and airframe ground on pin 6 only.
Operational Checkout
1. Connect connectors to DT100 and verify handset is locked on base or inserted in cradle.
2. Apply power to aircraft and avionics systems.
3. Lift handset and verify dial tone.
Note: Unusual buzzes, hums or other background noise are symptomatic of multiple grounds, or
noisy external systems such as blowers or pumps sharing wiring with the audio system.
4. Dial valid telephone number (Refer to the Operations Instructions of your telephone system or
Network Provider for information on phone number formats.). When a party answers verify
normal telecom operations.
5. Verify all other operation functions (refer to Operating Instructions in Section III).
Deklin Technologies, Inc. 2008
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