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Installation
When making connections to the SL50/60, use a three conductor shielded cable. Make RxD,
TxD, and signal ground connections to the 37 pin connector. Connect the shield(s) to the rear
of the mounting frame on the connector plate. The shield leads must be < 1.25 inches. See
Figure 5.
Complete serial interface specifications are included in Appendix E.
S
S
IMULATOR
ELECT
The simulator select pin on the 37 pin connector must be connected to ground on pin 25. If
left unconnected, the unit will operate in the built-in simulator mode.
S
H
PEAKER AND
Connect the speaker and headphones to the output pins on the rear connector.
M
I
ICROPHONE
NPUTS
Microphone input connections should be made using a twisted pair shielded cable. Attach the
signal ground to the mic ground pin on the rear connector and connect the shield to the rear
connector plate.
T
K
RANSMIT
EY
The TxKey input on the rear connector must be pulled low to ground to enable the transmitter.
This input should be connected to a microphone or yoke mounted momentary push button
switch.
I
S
NTERCOM
ELECTOR
The SL60 includes a voice activated intercom function that can be enabled by an external
control switch. This is an optional connection.
When making connection for the intercom selection, connect the intercom selection input to a
remote mounted normally open switch. A momentary toggle or alternate action switch can be
used. Connect the other terminal of the switch to ground. The intercom function is enabled
when the input is pulled low to ground. The monitor function is inhibited when the intercom
function is selected.
R
F
/F
EMOTE
LIP
The SL60 includes a remote flip/flop input. This is an optional input can be connected to a
remote mounted (such as on the yoke) momentary push button switch which pulls the input
low to ground.
A
I
NTENNA
NSTALLATION AND
C
A
OMM
NTENNA
The SL60 requires a standard 50W vertically polarized antenna. Follow the antenna
manufacturer's installation instructions for mounting the antenna.
14
I
NPUT
O
EADPHONE
UTPUTS
(SL60
ONLY
I
(SL60
NPUT
ONLY
S
(SL60
WITCH
I
(SL60
LOP
NPUT
ONLY
C
(SL60 O
)
NLY
(SL60
)
ONLY
)
)
)
ONLY
)
ONNECTIONS
Apollo SL50 / SL60 Installation Manual
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