Actisense USG-2 Isolated USB to Serial Gateway for NMEA 0183, RS422 & RS232

USG-2 Isolated USB To Serial Gateway For Use w/NMEA0183, RS422 And RS232

The USG-2 ensures safety and reliability when connecting a PC to your NMEA 0183 network.

The USG-2 converts a USB port into a bi-directional serial port suitable for connecting to a marine standard NMEA 0183 data bus.

It provides a far safer connection when compared to standard USB to serial converters.

Electrical isolation is provided by the ISO-Drive output and OPTO-isolated input making installation simple and free from ground loops.

The input uses the Actisense OPTO-isolation circuitry to protect any connected equipment from the most common system faults. The input can receive very low-level signals that are often too small to be received by a PC serial port.

The USG-2 is the safest way to connect a boats data network to an on-board PC.

Features:

• NMEA 0183, RS422 RS232 compatible


• ISO-Drive technology


• Pluggable screwless connector with locking latch strain relief


• Encapsulated electronics


• High retention USB socket


• Diagnostic power LEDs


• Baud rates from 300 to 230400 bps


• Bulkhead mount, with optional DIN rail mount kit


• Pluggable screwless connector


• Inputs outputs protected against over voltage, ESD short circuits


• Simple installation


• Protects PC from damage


• Eliminates ground loops

Technical Specifications:

Power Supply (USB)

• Power Source - Bus powered


• Maximum Bus Current - 50mA

NMEA 0183 Port Talker Listener

• Number of Listener/Input Ports - One isolated NMEA 0183 Listener


• Number of Talker/Output ports - One isolated NMEA 0183 Talker


• Compatibility - Fully NMEA 0183, RS422 RS232 compatible. RS485 Listener compatible


• Galvanic Isolation - NMEA 0183 Talker and Listener Isolation


• Speed/ Baud Rate - 4800 to 230400 bps / baud


• Connectivity - Pluggable screwless connector with locking latch and integrated push-button. Utilizes cage clamp for 12 to 24 AWG wires (both solid and stranded)


• Talker output voltage drive - >2.0V (differential) into 100


• Talker output current drive - 20mA max.


• Talker output protection - Short circuit and ESD


• Listener input voltage tolerance - -15V to +15V continuous


• Listener input protection - Current limited, overdrive protection to 40V DC and ESD protection


• USB Port


• Compatibility - USB 1.1, 2.0 and 3.0


• Speed/ Baud Rate - 300 to 230400 Baud


• Connectivity - High retention type-B receptacle (supplied cable includes a custom USB Type-B sealing plug)


• Withdrawal Force - 1.5Kg


• Drivers (Latest OS) - Windows XP, Vista, 7, 8, 10,11 MAC OS X supplied on CD Actisense website

Mechanical

• Materials - Housing ABS (PA-765), flame retardant to UL94 V-0, PCB encapsulant polyurethane, flame retardant to UL94 V-0, Pluggable screwless connector PPA-GF with CrNi spring and tin plated Ecu contacts


• Mounting - Bulkhead mount (s/s self tapping screws included) or optional DIN rail mount kit available


• Weight - Main body 65g, USB cable 70g


• USB cable length - 2.0m shielded USB Type-A to Type-B cable including custom USB Type-B sealing plug

Approval Certifications

• EMC - EN 60945 (sections 9 10)


• Environmental protection - IP67 (Encapsulated electronics)


• Operating temperature - -25C to +70C


• Storage temperature - -40C to +85C


• Relative Humidity (RH) - 0 to 93% RH


• Guarantee - 3 years (5 Years if registered)

The Actisense USG-2 is a highly reliable and safe solution for connecting your PC to marine data networks, specifically designed to interface with NMEA 0183, RS422, and RS232 standards. This gateway transforms a standard USB port into a bi-directional serial port, enabling seamless communication with marine navigation systems while ensuring electrical safety and signal integrity. Its galvanic isolation, provided by ISO-Drive technology and opto-isolated inputs, protects your onboard equipment from ground loops, voltage spikes, and system faults, making it ideal for harsh marine environments. The encapsulated electronics and rugged design enhance durability, while the pluggable screwless connectors simplify installation and maintenance. The USG-2 supports baud rates from 300 to 230,400 bps, accommodating a wide range of data transmission needs, and is suitable for bulkhead or DIN rail mounting options, providing flexibility in installation locations. The device's power is bus-powered via USB, drawing a maximum of 50mA, and it is compatible with Windows XP through Windows 11, as well as Mac OS X. Its high retention USB Type-B socket ensures a reliable connection even in challenging conditions. Built to meet EMC standards and certified for IP67 environmental protection, the USG-2 can operate efficiently across a broad temperature range, from -25°C to +70°C, enduring the demanding conditions of maritime environments. The device includes diagnostic LEDs for power indication and is protected against overvoltage, ESD, and short circuits, ensuring long-term operational stability. Whether used in navigation, communication, or data logging applications, the Actisense USG-2 offers a safe, robust, and versatile interface for marine and industrial data systems.

Features:

• NMEA 0183, RS422, RS232 compatibility for versatile marine data interfacing

• ISO-Drive technology providing galvanic isolation for safety and ground loop elimination

• Pluggable screwless connectors with locking latch and strain relief for easy installation

• Encapsulated electronics designed for durability in harsh environments

• High retention USB Type-B socket ensuring reliable connection

• Diagnostic power LEDs for quick status monitoring

• Supports baud rates from 300 to 230,400 bps for flexible data transmission

• Bulkhead mount with optional DIN rail kit for versatile installation options

• Overvoltage, ESD, and short circuit protection for connected inputs and outputs

• Compatible with Windows XP through Windows 11 and Mac OS X

• IP67 rated enclosure with operating temperature range of -25°C to +70°C

• Lightweight design with easy-to-use screwless connectors and mounting options