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Actisense NBF-3 NMEA Buffer

#9045914
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Actisense NBF-3 NMEA Buffer

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Details

Details

Safely drive up to six NMEA Listeners, with power distribution for the connected Talker.

The Actisense NBF-3 NMEA Buffer isolates and buffers NMEA 0183 data, with the power to drive multiple devices. The NBF-3 can distribute up to six identical, amplified streams of data from one source. The NMEA signals are buffered to ensure that each Listener receives the data at the required voltage levels, providing consistent data quality.

The isolation on the input and each of the outputs ensures the protection of the source Talker device and all the Listening devices. The safe connections mean that a non-isolated device could be connected and the NBF-3 would prevent it from causing any damage to the other equipment in the system. Ground loops often occur when devices are not isolated and can cause irreparable damage. Actisense ISO-Drive technology on the outputs along with the galvanic opto-isolation on the input means you can connect the NBF-3 with complete peace of mind.

The NBF-3 NMEA Buffer has the addition of power distribution for the NMEA Talker. By having power and data from the same source, cabling requirements are reduced and installation is made simple.

Actisense NBF-3 NMEA Buffer Features:
  • Galvanic opto-isolation on the NMEA 0183 input
  • ISO-Drive™ NMEA 0183 outputs provide galvanic isolation to prevent ground loops
  • Compatible with all NMEA 0183 versions without requiring configuration
  • NMEA 0183 outputs compatible with RS422, RS232 and RS485 type Listeners
  • NMEA 0183 input compatible with RS422 and RS232 type Talkers
  • DIN Rail mountable
  • Pluggable screw terminals for quick and easy installation and diagnostics
  • Power and input indicator LEDs
  • Works automatically up to 115200 Baud
  • Amplification of weak input signals
  • Power feed for single cable installation to the NMEA Talker

Actisense NBF-3 NMEA Buffer Specifications:
Power Supply  

Input Supply Voltage

10 to 35V DC 

Input Supply Current (NBF-3 only)

100mA max @ 12V DC (all outputs @ full drive into 100Ohm loads)

Input Supply Connector

Pluggable 2 way screw terminal, 3.5mm pitch

Input Protection (NBF-3)

Continuous reverse polarity and ESD protection

Power Indicator

LED, blue (lit constantly indicates correct operation when input supply is connected)

Listener Power Output Voltage

10 to 35V DC derived directly from the input supply voltage

Listener Power Output Current

500mA max @ <=30 degreesC (See Note) (PTC self-resettable fuse)

Listener Power Output Connector

 Pluggable 2 way screw terminal, 3.5mm pitch
NMEA 0183 Port - Listener and Talker

Number of Listener/Input Ports

One isolated NMEA 0183 Listener 

Number of Talker/Output Ports 

Six isolated NMEA 0183 Talkers

Compatibility

Fully NMEA 0183, RS422 and RS232 compatible. RS485 Listener compatible

Galvanic Isolation

2500V input to ground 1500V output to ground using ISO-Drive

Speed/Baud Rate

4800 to 115200 bps

Talker Output Voltage Drive

>=2.1V (differential) into 100Ohm

Talker Output Current Drive

20mA max

Talker Output Protection

Short circuit and ESD 

Listener Input Voltage Tolerance

 -15V to +15V continuous, -35V to +35V short term (<1 second) 

Listener Input Protection

Current limited, overdrive protection to 40V DC and ESD protection

Listener Data Indicator 

LED, green (flashes at data rate)

Connectors

Pluggable 2-way screw terminals, 3.5mm pitch

 Mechanical

 Housing Material

Polycarbonate

 Protective Lid Material

Polycarbonate

 Sealing Materials

Expanded silicone foam gasket closed cell polyurethane splash guard and ePTFE waterproof vent

 Dimensions

127mm (L) x 106mm (W) x 48mm (H) 

 Weight

 210g

 Mounting

 4 x 3.5mm lugs to allow panel mount with self tapping screws (included), optional DIN rail mount available on request.

Approvals and Certifications

EMC

IEC60945-9 (sections 9 and10)

Environmental Protection

IP66

Operating Temperature

-20 degreesC to +70 degreesC

Storage Temperature

-40 degreesC to +85 degreesC

Relative Humidity

0 to 80% RH

Guarantee

3 Years 

Actisense NBF-3 NMEA Buffer Manual
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