Icom IC-F9521 Instruction Manual - Page 18

3 CONNECTION AND MAINTENANCE n Rear panel connection Antenna q ANTENNA CONNECTOR Connects to an antenna. Contact your dealer about antenna selection and placement. w D-SUB 25-PIN Connect an external unit. e EXTERNAL SPEAKER JACK Connect a 4-8 ø external speaker. q w e Supplied speaker SP-35 (10-key types only. Simple types have a built-in speaker.) r MICROPHONE HANGER The supplied self ground microphone can be used for microphone on/off hook functions. (See p. 2) R WARNING! NEVER remove the fuse-holder from the t DC power cable. r When the optional microphone (HM-152/T) is used: Red y t IGNITION LEAD Connects to an ignition line. Black R DO NOT put a pressure to this lead. 12V Battery NOTE: Use the terminals as shown below for the cable connections. Crimp Solder Binding to the DC power cable is recommended. y DC POWER RECEPTACLE Connects to a 12 V DC battery. Pay attention to polarities. RWARNING! NEVER connect to a 24 V battery. This could damage the Purchase separately Connect the supplied microphone hanger to the vehicle's ground for microphone on/off hook functions when the optional microphone (HM-152/T) is used. transceiver. 13