Actisense PRO NMEA Buffer with 1 OPTO Input and 6 ISO-Drive Outputs

PRO NMEA Buffer - 1 OPTO Input, 6 ISO-Drive Outputs, Serial Port, Pluggable Screw Terminals

Safely connect one Talker to six Listeners with full isolation.

The Type-approved NMEA Buffer PRO-NBF-1 Buffer isolates and buffers NMEA 0183 data, with the power to drive multiple devices.

Able to 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.

Isolation of the input and outputs ensures the protection of the source Talker device and Listener devices.

The NMEA Buffer has ISO-Drive technology on the outputs and OPTO-isolation on the input, which enables you to connect the NMEA 0183 Buffer with complete peace of mind.

The stainless steel housing makes the device rugged, sturdy, and gives it increased durability. The metal case also acts as an RF Shield, making the device an ideal addition to commercial installations.

To make installation quick and simple, the PRO-NBF-1 features 2-part pluggable connectors that allow use of screw terminals*, and a professional DIN Rail mounting system (DIN Rail not included). The device can also be mounted directly to the bulkhead.

The optional strain relief brackets can be provided to ensure reliable professional cable management.

Helpful LEDs indicate power, input, and output operation.

Features:

• One Opto-Isolated Input
• Six ISO-Drive outputs
• Outputs automatically track the input baud rate
• RS-232, RS-422 and RS-485 Listener compatible
• ISO-Drive separates the Listener from the Talker to protect both the PRO-NBF-1 and each connected device
• Wide compatibility means simplified installation
• Simple installation saves time and money and provides peace of mind
• Type Approved (RINA)

Technical Specifications:

Power Supply

• Input Supply Voltage - 9 to 35V DC
• Input Supply Current - 150mA max @ 12V DC (all outputs @ full drive into 100 loads)
• Input Protection - Continuous reverse polarity and ESD protection
• Power Indicator - LED, Blue Indicates unit is functioning correctly
• Input Supply Connector - Pluggable 2-way screw terminal, 5.08mm pitch

NMEA 0183 Port Listener Talkers

• 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 RS232 compatible. RS-485 Listener compatible
• Speed/baud rate - 4800 to 115200 bps
• Talker Output Voltage drive - >= 2.2V (differential) into 100
• Talker Output Current drive - 20mA max.
• Talker Output Protection - Short circuit and ESD
• Talker Data Indicator - LED, Orange (Flashes at data rate)
• 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 to indicate valid input)
• Connectors - Pluggable 2/3-way screw terminals, 5.08mm pitch

Isolation

• NMEA 0183 Listener - OPTO-Isolated, Hi-Pot tested to 1000V
• NMEA 0183 Talker - Uses IsoDriveTM, Hi-Pot tested to 1000V

Mechanical

• Housing Material - 316 Stainless Steel
• Dimensions - 139mm (L) x 128mm (W) x 27mm (H)
• Weight - 335g
• Mounting - Bulkhead mount or DIN rail mount (DIN kit 1)

Approvals and Certifications

• EMC - EN 60945:2002 (Fourth Edition 2002), DNVGL-CG-0339:2019
• Compass safe distance - 600mm
• Type Approval Certificate - RINA
• Operating Temperature - -25 to +70C
• Storage Temperature - -40 to +85C
• Maximum Relative Humidity (RH) - 95% @ 55C
• Environmental Protection - IP40
• Guarantee - 5 Years

The Actisense PRO NMEA Buffer (Part Number: PRO-NBF-1) is a robust and reliable device designed to buffer and isolate NMEA 0183 data signals for marine and commercial navigation systems. Equipped with one opto-isolated input and six ISO-Drive outputs, this device ensures that a single Talker source can safely distribute data to multiple Listeners while maintaining signal integrity and protection. Its full galvanic isolation prevents ground loops and protects connected devices from voltage spikes, making it ideal for complex installation environments.
Constructed with a stainless steel housing, the PRO-NBF-1 offers excellent durability and RF shielding, suitable for demanding marine and industrial applications. The device features pluggable screw terminals for quick wiring, along with a professional DIN rail mounting system (DIN rail not included) and optional strain relief brackets for reliable cable management. The built-in LEDs provide clear visual indicators for power, input, and output operation, simplifying troubleshooting and system monitoring.
Compatibility with RS-232, RS-422, and RS-485 standards allows flexible integration with various communication networks. The device automatically tracks baud rates up to 115200 bps, ensuring seamless data transmission. Its ISO-Drive technology on the outputs offers high-voltage isolation, while the opto-isolation on the input protects the source device from potential faults. The PRO-NBF-1 is Type Approved (RINA), meeting strict industry standards for safety and electromagnetic compatibility, including EN 60945:2002 and DNVGL-CG-0339:2019.
Powering the device is straightforward, requiring an input voltage between 9 to 35V DC with a maximum current draw of 150mA at 12V. It features reverse polarity and ESD protection to enhance reliability. The device is rated for operation across a wide temperature range from -25°C to +70°C and offers environmental protection rated IP40, suitable for both indoor and outdoor environments. With a five-year warranty, the Actisense PRO NMEA Buffer provides a dependable solution for distributing navigation data efficiently and safely in demanding maritime and industrial settings.

Features:

• One opto-isolated input for secure signal reception

• Six ISO-Drive outputs for multiple device distribution

• Automatic baud rate tracking from 4800 to 115200 bps

• Compatible with RS-232, RS-422, and RS-485 standards

• ISO-Drive technology on outputs for high-voltage isolation

• OPTO-isolation on input to protect source device

• Robust stainless steel housing for durability and RF shielding

• Quick installation with pluggable screw terminals and DIN rail mounting

• LED indicators for power, input, and output status

• Type Approved (RINA), meeting industry safety standards

• Wide power supply range from 9V to 35V DC with reverse polarity protection

• Operational in extreme temperatures from -25°C to +70°C

• Environmental rated IP40 for versatile deployment