User manual

The Actisense NMEA Buffer (NBF-3) distributes up to six identical data streams from a single source. Signals are

buffered to ensure each receiver has the required voltage levels. Isolation on the input and each output allows non-

isolated devices to be connected safely. The ability to power the source device allows the option of a single cable to

connect both power and data to the source device.

Features

• Works automatically with any serial protocol, including NMEA 0183

• Works automatically at any baud rate up to 115200 Baud

• Galvanic opto-isolation on the input meets the latest NMEA 0183 specication

• ISO-Drive™ provides galvanic isolation on the outputs to prevent ground loops

• Compatible with all NMEA 0183 versions without requiring conguration

• Inputs and outputs compatible with RS422 and RS232 devices

• DIN rail mountable

• Pluggable screw terminals for quick and easy installation and diagnostics

• Power and data input indicator LEDs

• Amplication of weak input signals

• Power feed for single cable installation to the NMEA Talker

• Waterproof electronics and splash proof connections

Product Overview

Optional power feed

500mA max

Latitude

50˚74’03”

Longitude

-1˚94’95”

Listeners

Talker

Latitude

50˚74’03”

Longitude

-1˚94’95”

12v

Figure 1 - Example of a Typical NBF-3 Installation

Note: Not to be used as wiring instructions