Icom VE-PG3 Instruction Manual - Page 321
EXT1] port, Port details continued
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8 FOR YOUR INFORMATION 4. Specifications (continued) M Port details (continued) [EXT2] port A1~A4 B1~B4 C1~C4 A1~A4 B1~B4 C1~C4 A1~A4 B1~B4 C1~C4 A1~A4 B1~B4 C1~C4 [EXT1] port [EXT1]/[EXT2] port Pin No. Description A1 General audio output (From the VE-PG3)/Superposition PTT A2 Analog GND A3 General audio input (To the VE-PG3)/Superposition squelch detect A4 Analog GND General output/Single PTT B1 Relay circuit output Serial communication (Half duplex)/8 V power supply B2 Relay circuit output B3 General input/Single squelch detect B4 Common GND C1 Serial communication TXD (From the VE-PG3) C2 Serial communication RXD (To the VE-PG3) C3 Serial communication RTS (From the VE-PG3) C4 Serial communication CTS (To the VE-PG3) • You can change the configuration of ports B1 to B4 on the VE-PG3's setting screen. • B1/B4 terminal (+/-): General Control Output Terminal Turns the connected equipment ON or OFF. • You can change the configuration of ports B1 to B4 on the VE-PG3's setting screen. • Specification: 3-16 V/10 mA (Open collector). • B2/B4 terminal (+/-): 8 V Power Supply Terminal Supplys the 8 V DC to the connected equipment. • You can change the configuration of ports B1 to B4 on the VE-PG3's setting screen. • Current limit: Less than 30 mA. • B3/B4 terminal (+/-): General Control Input Terminal Turns the connected equipment ON or OFF. • You can change the configuration of ports B1 to B4 on the VE-PG3's setting screen. • Specification: 3-30 V/10 kΩ (Voltage input). 3 .3 V/less than 1 mA (Low voltage contacts). 8-8