Icom MR-1220 Instruction Manual - Page 49

9 INSTALLATION AND CONNECTIONS WBahsitiec tcitolennections 1 CAUTION: •• DO NOT turn ON the display unit until both the display unit and the scanner unit are completely installed and connected. 2 •• NEVER connect anything other than the supplied scanner unit. •• An incorrect cable connection may damage the display unit. 3 Display unit Supplied scanner unit 4 DC power cable PWR Red: + Black: _ Power source 12 or 24 V DC Use the terminals shown below for the cable connections. Crimp Solder 5 6 7 System cable 8 GND 9 10 Ground 11 NMEA connector (PLT-168-P-R) NMEA connector (PLT-167-P-R) 12 NMEA 1: AIS data input / Bearing data input (AIS IEC61162-2 / NMEA0183, N+1, AUX format) NMEA 2: NMEA 0183 data Input/Output 13 (Rear panel view) 8 1 AIS input (+) 2 ALM 12V (Rear panel view) 7 1 NMEA 2 output (+) 2 NMEA 2 output (-) 14 1 7 3 NMEA 1 input (+) or AUX input (+): DATA 1 6 3 NMEA 2 input (+) 2 6 4 NMEA 1 input (-) or AUX input (-): DATA 2 5 4 NMEA 2 input (-) 15 3 5 5 N+1(+): data input or AUX input (+): CLOCK 3 4 5 DSC input (+) 6 N+1 input (-) or AUX input (-): CLOCK 6 DSC input (-) 16 4 7 AIS input (-) 7 GND 8 ALM output 17 •• NMEA 1/2 inputs, NMEA 2 output, DSC input: 4800 bps •• AIS input: IEC61162-2 38400 bps DDPower source You can directly connect the display unit to a 12 V or 24 V DC battery without a DC-DC converter or any internal modifications. (Power source requirement: 10.2 ~ 42 V DC) Connect the DC power cable as shown above. Black: _ Red: + 18 19 DDGrounding To prevent an electrical shock or other problems, 20 ground the display unit through the [GND] terminal. For the best results, connect a heavy gauge wire or 21 a strap to the nearest grounding point on the vessel. The length of the wire or the strap should be as short as possible. PWR connector DC input (+) Ground (-) 44