G3RS0000 – Red Lion Controls


RS-232/485 Option Card, G3 HMIs with Isolated Comms Ports

Part #: G3RS0000

SKU: G3RS0000 Category:


G3RS0000 Product Manual

This is a RS232/485 option card for G3 operator interfaces with isolated high speed communications ports.

Power is supplied to the option card from the main board of your G3 operator

Serial Ports: Format and Baud Rates for each port are individually software programmable up to 115,200 baud and are isolated to help prevent ground loops. The RS422/485 and DH485 port via RJ45 and the RS232 port via RJ12 share the same hardware. The G3RS option card multiplexes the ports to communicate via two protocols. These ports may be used to configure different master protocols, but only one port may be used if configuring a slave protocol or AB DH485. DH485 TXEN: Transmit enable; open collector, VOH = 15 VDC, VOL = 0.5 Isolation from G3RS Communication ports to G3 operator interface: 1000 VDC for 1 minute.

Emissions and Immunity to EN 61326: Electrical Equipment for Measurement, Control and Laboratory use.
Immunity to Industrial Locations: Reference G3 unit for emissions and immunity specifications

Operating Temperature Range: 0 to 50 °C
Storage Temperature Range: -20 to 80 °C
Operating and Storage Humidity: 80% maximum relative humidity (noncondensing) from 0 to 50 °C.
Altitude: Up to 2000 meters.

CONSTRUCTION: Installation Category I, Pollution Degree 2.

INSTALLATION REQUIREMENTS: Card must be installed inside the rear cover of a G3 operator interface with the hardware provided. See “Installing the G3RS Option Card” for more details.


The G3 proprietary expansion slot provides a high speed, parallel architecture that extends the functionality and flexibility of the G3 series HMI. This approach allows the G3 series to evolve concurrently with the latest advances in communications and standards, without sacrificing performance. This high bandwith channel has significantly greater throughput when compared to the traditional (external) serial gateway approach.

The G3RS0000 option card is easily installed by removing the rear cover of your G3 operator interface, attaching the card using three screws and connecting a single cable. Adding this card gives the operator interface another RS232 port and RS422/485 port. It is built with isolation to protect equipment from potentially harmful ground loops, and provides high speed RS232, RS422, RS485, and DH485 communications for many different types of hardware.

  • RS-232/485 Option Card For G3 Operator Interface Terminals only
  • Configured using Crimson® software (version 2.0 or later)
  • Isolated RS-232 and RS-485 Multiplexed ports (capable of communicating with RS-232, RS422, RS-485, and
  • DH485 devices at up to 115,200 baud)
  • Powered and Configured from G3 Operator Interface Terminal
  • Installation and connection hardware included with card

Additional information

Weight 1 lbs


G3RS Product Manual