Honeywell International Inc. KSN770 사용자 설명서

Page 3-145

6 Dec 2012

SYSTEM INSTALLATION MANUAL

066-01204 / 066-01213

© Honeywell International Inc. Do not copy without express permission of Honeywell.

J2-5

COM AUDIO OUT HI

J2-25

COM AUDIO OUT LO

This is an analog output from the KSN 7xx with the following characteristics:

J2-6

COM MIC AUDIO IN HI

J2-26

COM MIC AUDIO IN LO

This is an analog input to the KSN 7xx with the following characteristics:

J2-71

COM MIC KEY

This input is normally open, with a momentary GND applied when a switch is pressed. When the switch 
is open, the KSN 7xx disables the COM transmitter and sidetone; when grounded the COM transmitter 
and sidetone are enaled.

J2-53

TRANSMIT INTERLOCK

This discrete input signal may be optionally activated from remote equipment that might interfere with 
the VHF COM. The input is normally open, and is activated momentarily as long as a GND is applied to 
it. When the input is open, the COM receiver operates normally with normal sensitivity and sidetone. 
When this input is held low, the COM receiver is desensitized. If held low for longer than 30 seconds 
continuously, the receiver reverts to the normal mode until the signal is released (open) and pulled low 
again.

Impedance:

500 

50 ohms from 350 to 2500 Hz when the KSN 7xx is powered, and

450 ohms when the KSN 7xx is unpowered.

Range:

15.0 Vrms from 350 to 2500 Hz with 

10% THD into an open circuit.

Rated Audio:

100 mW into 500 ohms.

Squelch:

2 mVrms signal and noise into 500 ohms

Minimum State:

2 mVrms signal and noise into 500 ohms

Impedance:

485 

49 ohmsfrom 350 to 2500 Hz.

Bias Voltage:

9.0 

1.0 VDC through an internal series resistance of 500 50 ohmsto a 

load which can range from 0 ohm to open.

Range:

125 mVrms 

Signals 1.5 Vrms.

Draft as of 10/15/2012