Icom IC-905 - Page 90

13-4
BASIC MANUAL
13
CONNECTOR INFORMATION
D [ACC]
Connects to devices to control an external unit or to control the transceiver.
L DO NOT connect anything to NC pins.
ACC
Pin
No.
Name Description Specications
1 NC – –
2 NC – –
3 GND Connects to ground. –
4 NC – –
5 NC – –
6 NC – –
7 ALC ALC voltage input.
Input impedance: More than 10 kΩ
Input level: –4 ~ 0 V
Input voltage: Less than 30 V
Input current: Less than 0.5 mA
8 GND Connects to ground. –
9 SEND
Input/output
pin.
An external unit controls
the transceiver. When this
pin goes to ground, the
transceiver transmits.
Voltage: Less than 30 V
(Reverse voltage: 80 V)
Open circuit voltage: 5 V
Voltage (TX): –0.5 ~ +0.8 V
Current ow: Maximum 2.27 mA
The pin goes low when
the transceiver transmits.
10 NC – –
RF unit
Bottom panel view
10-pin
1
2
3
4 5
6
7
8
9
10
When connecting an external unit
When connecting an external unit, use a supplied
accessory connector.
L Usable cable diameter: 4.5 ~ 6.5 mm (0.2 ~ 0.3 in)
Solder
Pass a cable (User supplied).
Rotate
Attach the ring.
NOTE: Attach the ring (★). Otherwise the dust-
protection and water jet resistance cannot be
guaranteed.
★