Icom IC-7300 Instruction Manual basic - Page 68
KEY jack, EXT-SP jack, REMOTE jack, ALC jack, SEND jack, PHONES jack, DC power socket
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12 CONNECTOR INFORMATION KEY jack Connects to a CW straight key or a paddle: 6.35 mm (¼ in) (d) When connecting a CW straight key. When connecting a CW paddle and using the internal electronic keyer. dash dot com EXT-SP jack EXT-SP Connects to an external speaker: 3.5 mm (⅛ in) (d) ••Output impedance: 4 ~ 8 Ω ••Output level: More than 2.5 W at 10% distortion into an 8 Ω load. REMOTE jack REMOTE Used for computer control and transceive operation: 3.5 mm (⅛ in) (d) The optional CT-17 is required when connecting a PC to [REMOTE]. 9-15 V DC ALC jack ALC Connects to the ALC output jack of a non- Icom linear amplifier. (RCA Plug) ••Control voltage: -4 ~ 0 V SEND jack SEND The terminal goes low when the transceiver transmits. (RCA Plug) This terminal is used to control an external non-Icom linear amplifier. T/R control voltage and current must be less than 16 V DC and 0.5 A. PHONES jack PHONES Connects to standard stereo headphones: 3.5 mm (⅛ in) (d) ••Output impedance: 8 ~ 16 Ω ••Output level: More than 5 mW into an 8 Ω load. DC power socket Accepts the regulated DC power for 13.8 V DC ±15% through the supplied DC power cable. RWARNING! NEVER reverse the DC power cable polarity. Rear panel view IC-7300 Cable (RS-232C PC ct-17 type) mini-plug cable 12-3