Icom VE-PG4 Installation Manual page 120

6
FOR YOUR INFORMATION
Specifications
■ Port details
A1~A4 A1~A4 B1~B4 B1~B4 C1~C4 C1~C4
A1~A4 A1~A4 B1~B4 B1~B4 C1~C4 C1~C4
Pin No.
A1 Analog audio output (From the VE-PG4) / Superimpose PTT
A2 Analog GND
A3 Analog audio input (To the VE-PG4) / Superimpose squelch detection
A4 Analog GND
B1 General control output / Single PTT control / Relay output
B2 Serial communication (Half duplex) / 8 V power supply / Relay output
B3 General control input / Single squelch control
B4 Common GND
C1 Serial communication TXD (From the VE-PG4)
C2 Serial communication RXD (To the VE-PG4)
C3 Serial communication RTS (From the VE-PG4)
C4 Serial communication CTS (To the VE-PG4)
L You can change the configuration of ports B1 to B4 on the VE-PG4 setting screen.
• A1/A2 terminal (+/–) Audio output terminal
Adjust the output gain according to the audio amplifier that is used.
The connected audio equipment may be damaged if the gain is inappropriately set.
The length of the cable that connects the audio equipment and VE-PG4 should be less than 10 m (3.3 ft.)
Be careful of the noise and malfunction caused by a ground loop.
Reference level: Speaker/0 dBs/–20 dBs(0 dBs = 0.775 Vrms) selectable
Load impedance: More than 600 Ω (Speaker: 8 Ω)
• A3/A4 terminal (+/–) Audio input terminal
Adjust the output gain according to the audio amplifier.
When you use a microphone other than an electret condenser microphone (ECM), select "Disable" on the
setting screen.
Reference level: –10 dBs/–40 dBs(0 dBs=0.775 Vrms) selectable
Input impedance: Approximately 10 kΩ (Approximately 1 kΩ when biassed)
Supplied voltage: Approximately 2.2 V (For Electret Condenser microphone)
• B1/B2 terminal (+/–) Relay output terminal
Turns the connected equipment ON or OFF.
• You can change the configuration of ports B1 to B4 on the VE-PG4 setting screen.
(Connection Port Settings > EXT I/O (EXT))
• Less than 30 V/500 mA.
A1~A4 A1~A4 B1~B4 B1~B4 C1~C4 C1~C4
A1~A4 A1~A4 B1~B4 B1~B4 C1~C4 C1~C4
Description
6-20