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61
7
CONNECTION AND INSTALLATION
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Connector information
ACC
Pin Pin name
Description
Specification
1
CWK
CW and FSK keying input.
Input level
: Less than 0.6 V for transmit
(NC)
(NC: AUS version)
2
AF GND
Ground line for AF signal.
3
SEND
Input/output pin.
Ground level
: –0.5 to 0.8 V
Goes to ground when transmitting.
Input current
: Less than 20 mA
When grounded, transmits.
4
MOD
Modulator input.
Input impedance : 5 k
Ω
Usable when pin 3 is grounded.
Input level
: Approx. 100 mV rms
5
AF
AF detector output.
Output impedance: 4.7 k
Ω
Fixed, regardless of
[VOL]
position.
Output level
: 100–300 mV rms
6
SQLS
Squelch output
Squelch open
: Less than 0.3 V/5 mA
Goes to ground when squelch opens. Squelch closed
: More than 6.0 V/100 µA
7
13.8 V
13.8 V output when power is ON.
Output current
: max. 1 A
8
ALC
ALC voltage input.
Control voltage
: –3 to 0 V
Input impedance : More than 10 k
Ω
*
DC GND
Common ground.
1
2
3
4
5
6
7
8
DC 13.8V
Pin Pin name
Description
Specification
1–3
+
DC input
+
.
Max. power consumption 23 A typical.
4–6
_
DC input
_
.
1 2
4
6
3
5
TUNER
Pin Pin name
Description
Specification
1
E
Negative terminal
2
13.8V
13.8 V output
3
TUM4
Stepping motor control signal output for AT230.
4
TUM2
Stepping motor control signal output for AT230.
5
TUM1
Stepping motor control signal output for AT230.
6
TURS
Band control signal output for AT230.
7
TSCS
Preamp control signal output while scanning.
8
TUM3
Stepping motor control signal output for AT230.
9
START
Start/through signal output
10
KEY
Key signal input.
–0.5 to 0.8 V during tuning
8
7
10
9
6
5
4
3
2
1
*