Figure 4, Us-12s (single radio) wiring diagram – Sigtronics US-12D User Manual
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(J1-7) RED
(J1-12) GREEN
RADIO 1
INTERCOM UNIT
P1
J1
J2
P2
SPEAKER LO
SPEAKER HI
(J2-2) VIOLET
NOTE 1
NOTE 1
(J2-1) BROWN
(J2-4) BLACK
(J2-5) WHITE
PTT HI
(J2-3) VIOLET
MIC LO
(J2-6) WHITE
PTT LO
MIC HI
NOTE 2
NOTE 2
P4
J4
123
+11 to +16
VOLTS DC
FUSE
(1 AMP)
CHASSIS
GROUND
US-12S (SINGLE RADIO) WIRING DIAGRAM
NOTES:
1) CONNECT EITHER VIOLET WIRE TO THE RADIO SPEAKER HI OUTPUT.
CONNECT THE REMAINING VIOLET WIRE TO SPEAKER LO.
2) CONNECT EITHER WHITE WIRE TO THE RADIO PUSH-TO-TALK (PTT) KEY LINE INPUT.
CONNECT THE REMAINING WHITE WIRE TO THE PTT KEY LINE RETURN (PTT LO).
VOLUME
SQUELCH
INTERCOM
UltraSound
(J1-2) WHITE/RED
PTT SWITCH
(J1-1) WHITE/BLACK
(J1-10) WHITE/BLUE
(J1-11) WHITE/ORANGE
(J1-3) BLUE
TIP
BARREL
RING
(J1-4) BLACK
(J1-11) WHITE/ORANGE
(J1-10) WHITE/BLUE
HEADSET JACK
OFFICER
BARREL
HEADSET JACK
DRIVER
PTT SWITCH
RING
TIP
HEADSET JACK
PUMP PANEL
RING
BARREL
TIP
PTT SWITCH
(J1-8) WHITE/BROWN
(J1-9) YELLOW
(J1-6) WHITE/GREEN
(J1-5) ORANGE
HEADSET JACK
CREW #3
BARREL
TIP
PTT SWITCH
RING
HEADSET JACK
CREW #4
BARREL
TIP
PTT SWITCH
RING
RING
TIP
BARREL
HEADSET JACK
CREW #5
TIP
RING
BARREL
HEADSET JACK
CREW #6
RING
TIP
HEADSET JACK
CREW #7
BARREL
HEADSET JACK
CREW #8
BARREL
TIP
RING
(J4-1) TAN
(J4-2) TAN
(J4-6) TAN
(J4-5) TAN
(J4-4) TAN
(J4-3) TAN
RING
TIP
BARREL
HEADSET JACK
CREW #9
TIP
RING
BARREL
HEADSET JACK
CREW #10
(J4-9) BLACK
(J4-7) TAN
RING
TIP
HEADSET JACK
CREW #11
BARREL
HEADSET JACK
CREW #12
BARREL
TIP
RING
(J4-8) TAN
FIGURE 4