Icom VE-PG3 Instruction Manual - Page 318
About the external audio device, B1/B2: Relay circuit output, B1/B4: Control output
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8 FOR YOUR INFORMATION 3. About the external audio device M When connecting VE-PG3 to an in-house sound system Connect the VE-PG3 and the in-house sound system, using the cable with pin assign as shown below. • See Section 8 for port details. To [EXT1] (lowe slot) AB 12 34 12 34 A B 12 34 12 34 A1 A2 A3 A4 B1 B2 B3 B4 A1/A2: Audio output (OUT) A3/A4: Audio input (IN) B1/B2: Relay circuit output B1/B4: Control output B2/B4: 8 V power supply B3/B4: Control input • A2, A4 and B4 are the GND terminals. • The B1-B4 terminals can be configured on the setting screen. When connecting an RS-232C cable with the 9-pin D-sub connector The Virtual Serial Port function of VE-PG3 allows you to control a device with a serial communication interface, through the TCP/IP network. • See the "Virtual Serial Port" manual in the supplied utility CD for details. 8-5
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