RS232 Extender via CATx, up to 3,935 ft


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The XTENDEX RS232 Extender extends one RS232 serial device up to 3,935 feet (1,200 meters) over a single CAT5e/6/7 cable.

Features & Benefits

  • Full duplex data communication.
  • Compatible with all RS232 protocols.
  • Sends RS232 data at 921.6 kbps up to 328 feet (100 meters) and 115.2 kbps up to 3,935 feet (1,200 meters).
  • Supports Plug-n-Play specifications.
  • Pure hardware design, no software or drivers required.
  • DIN-rail mountable
  • Ideal for many applications, including:
    • Extending serial touch screen monitors.
    • Transferring data or files between computers.

Package Includes

  • RS232 Extender - local and remote unit.
  • DIN-rail mounting tabs.
  • One 6-inch DB9 male-to-male null modem serial cable.


Local/Remote Unit
Connectors(1) Female DB9 Serial; (1) Female RJ45; (1) Screw Terminal Pair
CommunicationFull Duplex Data
Data Transfer Rate115,200 baud up to 3,935 feet (1,200 meters)
921,600 baud up to 328 feet (100 meters)
Width1.63 in (41 mm)
Depth3.13 in (79.5 mm)
Height0.88 in (22 mm)
PowerSupports self-powered; Powered by devices though DB9; If additional power is required, a 9V, 1A power supply can be wired to the screw terminal pair.
Operating Temperature-22 to 167°F (-30 to 75°C)
Storage Temperature-40 to 185°F (-40 to 85°C)
Humidity5 to 95% RH, non-condensing
ApprovalsCE, FCC, RoHS
WarrantyTwo Years
Question: I want to extend the serial signal to a VGA monitor
Answer: Thank you for your inquiry. As long as the computer and monitor have DB-9 connections and depending on how far away the VGA monitor is, this device should work for you.