434PANEL DESCRIPTION4q ANTENNA CONNECTOR1 [ANT1]Connects a 50 Ω antenna with a BNC connector and a 50Ω coaxial cable.w DATA JACK [DATA]Connect to a PC via the RS-232 cable (D-sub 9 pin) for datacommunication in the RS-232 format.e PACKET JACKS [PACKET1/2]Connect a TNC (Terminal Node Controller), etc. for datacommunications. The receiver can receive 9600 bpspacket communication (AFSK).r USB CONNECTOR [USB]Connects to a PC via the supplied USB cable.t ANTENNA CONNECTOR2 [ANT2]Connects a 50 Ω antenna with a BNC connector and a 50Ω coaxial cable.y EXTERNAL SPEAKER JACK [EXT SP]Connects an 8 Ω external speaker.• Audio output power is more than 0.5 W.u CONTROLLER [CONTROLLER]Connects to a controller via an extension cable. This con-nector is only used for IC-R1500 or R2500’s controller op-eration.• No connection is necessary when the control software is in use.CAUTION: NEVER insert any other than specified con-trol cable such as metallic object, otherwise Main unitmay be damaged.i POWER JACK [DC IN]Accepts 12 V DC ±15% with the supplied DC power cable.o GROUND TERMINAL [GND]Connect this terminal to a ground.Pin 2 (RxD),Pin 5 (GND)to [DATA] jack2.5(d) mm Less than10(d) mmGNDRxD1569RS-232(DB-9 female)For IC-PCR2500Two antennas must be connected to [ANT1] and [ANT2]during dualwatch operation or diversity operation.