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7
CONNECTION AND INSTALLATION
■ 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 kΩ
Usable when pin 3 is grounded. Input level : Approx. 100 mV rms
5AFAF detector output. Output impedance: 4.7 kΩ
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 kΩ
* DC GND Common ground.
DC 13.8V Pin Pin name Description Specification
1–3 + DC input +. Max. power consumption 23 A typical.
4–6 _ DC input _.
TUNER Pin Pin name Description Specification
1ENegative 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.
9START Start/through signal output
10 KEY Key signal input. –0.5 to 0.8 V during tuning
