Read Intercom Figure 4 Inst text version

Figure 4

TO AIRCRAFT POWER BUSS 12 / 28 VDC

INTERCOM CIRCUIT BREAKER ( 1 AMP )

AIRCRAFT / INTERCOM INTERFACE AREA

POINT A

( INTERCOM CENTRAL GROUND POINT )

TIP AIRCRAFT HEADPHONE JACK RING AIRCRAFT HAND MIC JACK

TO A

HEADPHONE AUDIO MIC AUDIO TIP RADIO MIC KEY

AIRCRAFT RADIO 12345

(4) BLACK

(7) RED

1 2 3 4

PILOT PTT SWITCH

TO A

CO-PILOT PTT SWITCH

TO A

P1

SQ ON VOL

(3) BLUE (1) WHITE / BLACK

J1

INTERCOM SPA-400

PILOT U-174/U JACK

(6) BROWN (5) WHITE (2) WHITE / RED (10) WHITE / BLUE

SPA-400 INTERCOM

(9) TAN

U-174/U JACK PIN 1 MIC PIN 2 HEADPHONE PIN 3 MIC LOW PIN 4 HEADPHONE LOW

(11) WHITE / ORANGE (8) TAN (3) BLUE

NOTES 1. IF PILOT PTT SWITCH IS CONNECTED TO THE AIRCRAFT HAND MIC JACK, IT MUST BE DISCONNECTED AND CONNECTED TO THE WHITE / RED WIRE AS SHOWN. 2. AIRCRAFT CHASSIS GROUND. 3. SEE RADIO MANUFACTURERS INSTALLATION INSTRUCTIONS FOR ALL POWER, GROUND, AND ANY ADDITIONAL HOOKUPS. 4. THIS INSTALLATION DIAGRAM IS FOR A SINGLE RADIO SYSTEM WITHOUT AUDIO PANEL.

1 2 3 4

TO A

1 2 3 4

TO A

1 2 3 4

TO A

PASSENGER 2 U-174/U JACK

PASSENGER 1 U-174/U JACK

CO-PILOT U-174/U JACK

SPA-400 With U-174/U Jacks Installation Wiring Diagram

Sigtronics Corporation

178 East Arrow Highway San Dimas, CA 91773

Telephone: (909) 305-9399 E-mail: [email protected] Web: www.sigtronics.com

1-12-2007

SPA-400_U-174-U_Inst.pdf

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Intercom Figure 4 Inst

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