Connector Information - Icom GM800 Instruction Manual

9
CONNECTIONS AND INSTALLATION

■ Connector information

MICROPHONE
q
u
w i y
e t
r
Front panel view
AF/MOD
5 1
15 11
Front panel view
* A DSC call that is related to "Distress" as described below
• Distress call
• Distress acknowledgement
• Distress Relay call
• Distress Relay acknowledgement
• Distress Cancel call
• DSC call whose category is "Distress"
85
Pin Pin name
1 MIC (+) Audio input from the mic element. Input impedance: 2.4 kΩ
2 MIC SW Key detection.
3 AF1 AF output controlled by [VOL].
4 AF2 Ground for AF1.
PTT switch input.
5 PTT
Transmits when grounded.
6 GND Connected to ground.
7 MIC (–) Coaxial ground for MIC (+).
8 AF (–) Coaxial ground for AF1 and AF2.
Pin Pin name
NOTE: Do not connect to these
1~4 NC
pins.
Remote alarm input
When connected to GND, the
5 DSSW transceiver sends a Distress call.
Can be used as an external
Distress switch.
NOTE: Do not connect to these
6, 7 NC
pins.
Remote alarm output
Connect external equipment such
as a lamp or buzzer that needs a
power source, between this pin
and GND.
8 DSLD
When receiving a Distress call*,
the key backlight blinks and
the internal relay intermittently
connects between this pin and
GND.
9, 10 GND Ground
Modulation input from an external
11 MOD (+)
unit for the SSB.
12 MOD (–) Coaxial ground for MOD (+).
AF detector output for an external
13 AF (+)
unit for SSB.
14 AF (–) Coaxial ground for AF (+).
Transmission control line for an
15 SEND external unit for SSB (transmits
when grounded).
Description
–
–
–
–
–
–
–
Description
–
–
–
Applicable voltage: Less than 30 V
Current flow: Less than 1 A
–
Input impedance: 600 Ω
Input level: Approximately 0.77 V rms
Input impedance: 600 Ω
Output impedance: 600 Ω
Output level: 0.25 ~ 2.5 V rms
Output impedance: 600 Ω
Output level: –0.5 ~ 0.8 V
Input level: Less than 20 mA
Specification
Specification