GRID485 Serial Tunnel - Ethernet to RS485/422 Device Server: No Mount


Leave a review



Manufacturer: Grid Connect Inc.

Delivery: Ships within 7-14 business days
Qualifies for Free shipping to the US
Contact us for information
Phone: (800) 975-4743 or (630) 245-1445

Mounting Option

We Have You Covered

Price Match delivery truck

1 year comprehensive warranty support for all products

hand receiving items

30 day money back guarantee

*some exceptions apply

Product Information

Product Description

Made in the USA

The GRID485 Serial Tunnel is an all in one intelligent RJ45 connector device that converts RS422/485 serial to wired Ethernet and Wi-Fi wireless Ethernet. Based on the new high performance  GRID45 module, the GRID485 device is the updated version of our popular NET485

The RS422/485 side can connect to serial devices over long distances (up to 4,000 ft.) making the device web enabled and eliminating the limitations generally imposed by cable length.  Two GRID485s can be used as a cable replacement by using "serial tunneling" through TCP/IP or Ethernet.

The GRID485 supports RS485 in 2-wire mode (half-duplex) or in 4-wire mode (full-duplex). The half-duplex or full-duplex operation is chosen in the device configuration. Using RS485 you can connect the GRID485’s serial interface to multiple devices in a RS485 multi-drop bus.

The Wi-Fi interface supports a SoftAP for easy wireless configuration. A Web Manager provides a browser-based configuration and diagnostic tool. Configuration and device status can be accessed via the setup menu through the serial line or a network port. The unit’s configuration is stored in nonvolatile memory and is retained without power.

Applications include:

  • Fire and security panels
  • Vending machines
  • Remote equipment management
  • Access control
  • Industrial control
  • Bridging
  • Power Management


DIN Rail & Strap Option Package Includes:

  • 1 x GRID485 device
  • 1 X DIN Rail Mount
  • 1 X Strap
  • 2 x Screws


Pinout Information

GRID485 has 7-pin removable Phoenix connector for wiring power and RS485 communication lines. Has pinout chart.


Order Summary

SKU Mounting Manufacturer Part # (MPN)
GRID485-ST No Mount GRID485-ST
GRID485-ST-DIN DIN Rail Clip & Strap GRID485-ST-DIN


  • Bluetooth simple serial, Ethernet, Wi-Fi bridging
  • Both RS-422 and RS-485 support
  • Wi-Fi option
  • Compact size
  • DIN rail clip & strap option
  • Built-in Web Server
  • Jumpers to enable Tx/Rx termination resistors
  • 7 pole terminal block for all signals and power connections
  • Configurable for 128, 192 or 256-bit AES Encryption
  • Selectable baud rate to 921K
  • 7,8 data bits, multi-drop control
  • Ethernet Activity, Status, and Power LEDs
  • UL, CE, and RoHS certified
  • OEM and custom versions available (call for information)

Documents and Drivers


GRID485 Hardware User Guide

GRID485 Product Comparison Guide

GRID485 Pinout Information



32-bit microprocessor


Upgradeable via HTTP


  • Serial:  RS485/422. Baud rate software selectable (300 to 921600)  
  • Ethernet:  IEEE802.3/802.3u, 10Base-T or 100Base-TX (Auto-sensing, Auto-MDIX), RJ45
  • Wi-Fi:  802.11 b/g/n, 2.4 GHz, Client Station and SoftAP,  PCB antenna standard

Serial Line Formats

7 or 8 data bits,  1-2 Stop bits, Parity: odd, even, none

Protocols Supported

IPv4, ARP, UDP, TCP, Telnet, ICMP, DHCP, BOOTP, Auto IP, and HTTP. Optional industrial protocols. 

Power Input

8VDC to 24VDC, approximately 2.5 W


Ethernet activity, link and power


Internal web server, Telnet login, HTTP 


  • Access: Password protection
  • Encryption: Configurable 128, 192, 256-bit AES Encryption


800g  (1.8oz)


Case: Flame Retardant 

Temperature range

Operating range: -30°C to +60°C (-22°F  to 140°F)

Relative Humidity

Operating: 5% to 95% non-condensing  

Included Software

Windows™/Mac/Linux based Device Manager tool 

UL Certification E357346-A1

IEC 62368-1:2018 

You Might Be Interested In

Request a Quote

Curious about bulk pricing? Please fill out the information below and our sales team will provide a quote within 1 business day.

Customer Reviews