Sigtronics Sport 200 - Manual (Page 2)

MOUNTING HEADPHONE AND MICROPHONE JACKS:
1. Select mounting areas. (One mic and one headphone jack for each headset).
Again, make sure the jacks will not interfere with aircraft control components.
2. Drill 3/8” diameter holes for headphone jacks and install.
3. Drill 1/2” diameter holes for mic jacks and install with insulating washers
supplied. (See Figure 3).
WIRING INSTRUCTIONS
Connections should be made as shown in Figure 4 and indicated in Table 1
*A. White / red (pilot push-to-talk) must correspond with white / black (pilot mic
input) as shown.
*B. The blue wire from Pin 3 must be connected to the aircraft radio headphone
output- NOT the speaker output.
*C. Connect all intercom mic jack grounds to Point A as shown in Figure 4. (Use
black washers supplied to insulate intercom mic jacks from aircraft chassis
ground).
*D. Do NOT connect transmit switches to white (key) wire.
*E. Red wire may be connected to either 12 (14V) or 24 (28V) power source. No
switching or adjustments are required to operate from either source.
*F. The Violet wire (J1 pin 12) is provided on the Sport 200 for an optional Push-
to-intercom function. For wiring and additional instructions see the “PUSH-TO-
INTERCOM INSTRUCTIONS” section on this page. Make sure any unused
wires are properly insulated and kept from shorting to any other wires or aircraft
ground.
FINAL CHECKOUT AND ADJUSTMENT
After the unit is installed, again check that the intercom chassis, jacks, and wiring
harness are clear of all aircraft operating controls and cause no interference with
them. Check out the intercom functions by following the Operating Instructions.
It may be necessary at this time to adjust the intercom mic output to the aircraft
radios. A small, square, adjustable trimmer potentiometer is provided inside the
unit for this purpose. It is accessible through a hole in the side of the case, marked
“Mod. Adj.”, and can be adjusted with a screwdriver. In the event of over modulation
(garbled) or reports of weak transmissions over the aircraft radio, an appropriate
adjustment can be made. Clockwise rotation increases the output level to the
aircraft radio mic input. Counter-clockwise rotation decreases modulation level. This
adjustment sometimes needs to be made after initial installation of the intercom or
if a new radio is installed. (The output is set for unity gain at Sigtronics.)
PUSH-TO-INTERCOM INSTRUCTIONS
Install a separate momentary switch at each headset position. Connect per Figure
4. To use the push-to-intercom feature, turn the squelch control on the intercom
fully counter-clockwise. Then to activate, press the push-to-intercom switch(s).
Alternately, to use the intercom in voice activated (VOX) mode set the intercom
squelch as normal.
Model: SPA-200
Weight: Intercom with panel and knobs (4.5 oz.)
Jacks and wiring harness (5.5 oz. maximum)
Current Draw: 0.06 amps @ 28 volts
Sport 200
INTERCOM
CO-PILOT
HEADPHONE JACK
CO-PILOT
MIC JACK
PILOT
HEADPHONE JACK
AIRCRAFT
HEADPHONE
JACK
AIRCRAFT
HAND MIC
JACK
PILOT
MIC JACK
BARREL
BARREL
BARREL BARREL
TIP
TIP
TIP
TIP
TIP
TIP
RING
RING
RING
NOTES
1. IF PILOT PTT SW 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.
HEADPHONE AUDIO
MIC AUDIO
RADIO MIC KEY
AIRCRAFT RADIO
12345
TO
TO
TO TO
AIRCRAFT / INTERCOM INTERFACE AREA
PILOT
PTT SW.
CO-PILOT
PTT SW.
TO AIRCRAFT
POWER BUSS
12 /28 VDC
INTERCOM
CIRCUIT
BREAKER
( 1 AMP )
POINT
( INTERCOM
CENTRAL
GROUND
POINT )
(3) BLUE
(1) WHITE / BLACK
(6) BROWN
(5) WHITE
(2) WHITE / RED
(10) WHITE / BLUE
(11) WHITE / ORANGE
(7
)R
E
D
(4
)B
LA
C
K
P1
J1
I N T E R C O M Sport 200
SQ ON VOL
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Table 1 — * See Wiring Instructions
Plug
Pin #
Wire Color Function Connect To:
1
White /
Black
Pilot Mic Input
Ring Terminal of Pilot Intercom Mic
Input Jack
2
White /
Red *A
Pilot Transmit Switch Input
Pilot Transmit Switch (PTT) (Switch to
Ground to Transmit)
3 Blue *B
Headphone - Radio and
Intercom Outputs Radio Headphone Output and all
Headphone Jacks
4 Black *C Ground
Hand Mic Jack Ground Terminal
(Point A)
5 White *D
Transmit Relay (Key)
Control Output
Tip Terminal of Aircraft Mic Jack or
Key Input of Aircraft Radio or Audio
Panel
6 Brown Mic Audio Output
Ring Terminal of Aircraft Mic Jack or
Input of Aircraft Radio
or Audio Panel
7 Red *E
12 VDC through 24 VDC
Power Input
Intercom Circuit Breaker
8 No Connection
9 No Connection
10
White /
Blue
Copilot Transmit Switch Copilot Transmit Switch (PTT)
11
White /
Orange
Copilot Mic Input
Ring Terminal of Intercom Copilot Mic
Input Jack
12 Violet *F ICS PTT ICS PTT Switches
Sport 200 Installation Drawing Figure 4
1-12-2007 Sport200_INS.pdf
Sigtronics Corporation
178 East Arrow Highway
San Dimas, CA 91773
Phone: (909) 305-9399
E-mail: [email protected]
Web Site: www.sigtronics.com