GEEK MODE OFF

Adaptable NMEA 0183 Buffer with a variety of operating modes. Provides two OPTO-isolated inputs and twelve ISO-Drive™ outputs, keeping devices safe from hazardous ground loops.

PRO-BUF-1 is reliable, robust and provides isolation on all inputs and outputs as standard. With two NMEA 0183 inputs, twelve NMEA 0183 outputs, a bi-directional serial port and an Ethernet port, the PRO-BUF-1 is a perfect solution for larger leisure vessels and commercial shipping.

The PRO-BUF-1 is designed to suit the majority of NMEA 0183 systems and ready to go ‘out of the box’ by simply hard-wiring the two mode inputs as required. The manually configurable basic modes of operation include variations of buffer modes, autoswitch modes, and combine modes.

For all other configurations, leaving the mode inputs floating selects the ‘User Configuration Mode’. The web browser based configuration tool allows full customisation of the PRO-BUF-1, and is compatible across all popular Operating Systems. The PRO-BUF-1 supports a direct Ethernet connection to a PC without the need for a specialised Ethernet crossover cable.

To make installation quick and simple the PRO-BUF-1 features 2-part pluggable connectors that allow use of screw or screwless terminals, and a professional DIN rail mounting mechanism (DIN rail included).

Helpful LEDs indicate power, data in, data out and the alarm status to aid diagnostics.

Geek Mode

All inputs, outputs and battery supply electrically isolated to create networks completely safe from ground loops
Ethernet port – for configuration and diagnostics
An Alarm output (N/O and N/C contacts)
Pre-defined modes of operation for quick setup
‘User Configuration Mode’ provides a customised
Diagnostic LEDs (power, data in/out & alarm)

Designed for 12 and 24 Volt supply
Pluggable connector system supports both screw and screwless terminals
Browser based configuration tool means the PRO-BUF-1 can be configured from any operating system
Automatic baud rate matching on inputs for plug and play operation
Independently configurable outputs supporting different baud rates from a single device
‘Future proof’ easily upgraded firmware

Technical Specification

Power Supply
Input supply voltage	10 to 35 V DC
Input supply current	325mA max @ 12V DC (all outputs @ full drive into 100 ohm loads)
Input protection	Continuous reverse polarity, transient overvoltage and ESD protection
Power indicator	LED, Blue - indicates unit is functioning correctly

NMEA 0183 Port - Listener & Talker
Number of Listener / input ports	2 isolated NMEA 0183 Listeners
Number of Talker / output ports	12 isolated NMEA 0183 Talkers
Compatibility	Fully NMEA 0183, RS422 & RS232 compatible. RS485 Listener compatible
Electrical isolation	2500 V input to ground, 1500 V output to ground using ISO-Drive™
Speed / baud rate	4800 to 38400 bps
Talker output voltage drive	>= 2.1V (differential) into 100 ohm
Talker output current drive	20 mA maximum per output
Talker output protection	Short circuit and ESD
Listener input voltage tolerance	-15 V to +15 V continuous, -35 V to +35 V short term (< 1 second)
Listener input protection	Current limited, overdrive protection to 40 VDC and ESD protection
Listener data indicator	LED, Green (Flashes to indicate valid input)
Talker data indicator	LED, Orange (Flashes at data rate)

Serial Port
Number of input ports	1 isolated input
Number of output ports	1 isolated output
Compatibility	RS422 & RS232 compatible. RS485 Listener compatible
Electrical isolation	2500 V input to ground 1500 V output to ground using ISO-Drive™
Speed / baud rate	4800 to 115200 bps
Output voltage drive	>= 2.1V (differential) into 100 ohm
Output current drive	20 mA max.
Output protection	Short circuit and ESD
Input voltage tolerance	-15 V to +15 V continuous, -35 V to +35 V short term (< 1 second)
Input protection	Current limited, overdrive protection to 40 VDC and ESD protection

Ethernet Port
Host interface	10/100BaseT, automatic polarity detection
Supported protocols	TCP/IP for configuration and firmware updating TCP/IP and UDP for NMEA 0183 comms*
Connector	RJ45
Electrical isolation	2kV
Indicators	Green - Link, Yellow - 100 Mbps

Mode Inputs
Input voltage range	0 to 35V DC
Protection	Transient overvoltage and ESD protection

Alarm Output
Contacts	Normally open and normally closed*
Electrical isolation	1000V between power supply and contacts
Alarm indicator	LED, red indicates a valid alarm condition

Mechanical
Housing material	Polycarbonate / ABS blend
Flame retardancy	UL94 - V0
Weight	250g
Mounting	DIN rail mount (35mm top hat rail EN 50 022)
Compass safe distance	TBD
Wiring terminals	Pluggable 2/3 way screw or screwless connectors, 5mm pitch, 12 to 30 AWG

Approvals and Certifications
EMC	IEC 60945 (sections 9 & 10)
CE	2004/108/EC
Environmental protection	IP44
Operating temperature	-20°C to +70°C
Storage temperature	-40°C to +85°C
Relative Humidity (RH)	0 - 80% RH
Guarantee	5 years

The PRO Range

PRO-BUF-1 Professional NMEA 0183 Buffer