NDC-4 Datasheet
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NDC-4 Datasheet - 1

NMEA Multiplexer Safely drive up to six NMEA Listeners, with power distribution for the connected Talker. The NDC-4 provides complete access to all NMEA 0183 data sources, configurable filters to remove unwanted data, as well as enabling an on-board PC to read and add to the combined data stream. The NDC-4 and NDC-4-USB allow up to five OPTO-isolated NMEA 0183 sources to be multiplexed into a single stream*. Separate ISO-Drive outputs allow two different downstream Talker baud rates to be created. TM Factory pre-configured versions enable the NDC-4 to be used out of the box for AIS operation (NDC-4-AIS) or as an Autoswitch (NDC-4-ASW). The NDC-4 has a very low power consumption which is an advantage in small vessel installations. Unwanted data can be filtered out at the NDC-4 inputs using NDC Control Centre which is supplied on the CD and available via the Actisense Website. This will prevent outputs from becoming overloaded in installations where large amounts of data are being transmitted meaning essential data (such as GPS) will not be lost. A PC RS232 or USB port can connect with the NDC-4 to view the NMEA data on a laptop or PC. The NDC-4 also enables the PC to talk back to connected marine hardware, allowing it to control on board equipment from “virtual cockpit” or chart-plotter software. Benefits • ombine up to five C NMEA 0183 data sources into one stream • Filter unwanted data • hange data to a different C baud rate • Preconfigured versions for AIS and Autoswitch operation • Connect to a PC with optional USB Kit. Features: ive OPTO-isolated inputs ntelligent multiplexing I software Flexible NMEA filtering onfigurable baud rates C and port priorities PC configuration software IS compatible A IN p to 115200 baud U 500V isolation on inputs 1 & outputs Four inputs on the USB version, as the USB interface acts as the fifth channel, overriding the fifth OPTO input. Active Research Limited is registered in England, Company number: 3295909. VAT Registration number: GB 658 7968 55 Actisense

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NDC-4 Datasheet - 2

NDC-4: Specifications Supply (“BATT”) Voltage Supply (USB) Supply voltage Supply current from USB (see note 1) Opto-isolated Flexible Input Input voltage between +/- Input current Maximum is under +35v overload condition, Min @ 2.0v input level Differential input voltage Required level for NMEA to be detected Galvanic isolation Between input & output Overdrive protection Input Baud rate (ports 0 & 1 + USB) Configurable Baud rate Input Baud rate (ports 2 & 3) Configurable Baud rate Input Baud rate (port 4) Fixed Baud rate Output current at max load of 100 ohm At maximum load, differential...

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