The NMEA 0183 standand is the method by which marine electronics talk to one another. The NX-100 NMEA 0183 Expander solves the problem of needing to share information of a NMEA device such as GPS receiver with several other NMEA instruments. Some NMEA devices do not provide sufficient drive capability to function in a multiple listener installation. The The NX-100 allows multiple listeners to be connected to a single talker. The NX-100 takes either a single-ended RS-232 or a differential RS-422 input signal. It conditions and buffers the input signal to provide three single-ended RS-232 outputs and one differential RS-422 output. It also provides up to 2kVRMS input-to-output-to-power isolation using optical and transformer technology.
2000 volts full galvanic isolation between inputs, outputs and power supply.
1 NMEA 0183 / RS-232 input; 1 NMEA 0183 / RS-422 input.
3 NMEA 0183 /RS-232 outputs; 1 NMEA 0183 / RS-422 output.
Wide operating voltage range of 9 to 24 volts DC.
Transient protection on all inputs and outputs.
Fully potted electronics in flame retardant ABS plastic case (UL94V-0) with mounting flanges.
Thermoplastic (UL94V-0) terminal blocks with tin plated brass screws and terminals accepts 24 to 14 AWG.
Buffers and Converts NMEA 0183 signals.
Specifications |
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| Isolation | 3-way isolation: Input-to-output-to-power; Hi-pot: 2000 VRMS for 1 minute, 5500 VDC for 1 second, Leakage Current: Less than 50uA @ 2000 VAC / 60 Hz; 5500 VDC |
| Power Supply | 9 to 24 volts DC @ 30mA (min), 140mA (max). 400 volts DC reverse polarity protection. |
| NMEA / RS-422 | Input Resistance: 500 ohms; Output drive: 100mA |
| NMEA / RS-232 | Input Resistance: 3K to 7K ohms; Output Drive: 10mA |
| Baud Rate | 0 to 115.2 kbps |
| Case | Height: 1.45 in. (36.83mm) Length: 5.25 in. (133.35mm) Width: 3.00 in. (76.20mm) |
| Weight | Approx. 0.79 lbs (22.3 gms) |
| Operating Temperature | -20°C to +80°C |
| MTBF | 122,000 hours (13.9 years), Calculated per MIL-HDBK-217F at +25°C and Naval, Sheltered |