802.11 a/b/g/n/ac Wireless Serial Device Server

The SD-330AC serial device server is an ideal choice for connecting your serial devices for industrial automation, building automation and medical devices to a wireless LAN. It supports both Infrastructure Mode or Ad-Hoc Mode, which allows SD-330AC to connect to Wi-Fi networks at offices and factories to allow users to move, or roam, between several access points.

The SX-Virtual Link Software enables you to access the serial device servers from anywhere in the network via WLAN.

Enterprise Security for Serial Devices

The Silex SD-330AC is designed to easily connect and share RS-232c serial devices over a wireless network. Many medical and industrial devices like measuring instruments, PLCs, meters, sensors, industrial displays and label printers that are equipped with the RS-232C serial interface, can now be enabled with secure, robust wireless network capability.

Easily connect and share RS-232C serial devices on wireless networks. This eliminates the need to connect the RS-232C device directly to the computer and is expected to improve the freedom of installation of the device and efficiency by remote maintenance.

  • 802.11a/b/g/n/ac WLAN
  • Web-based configuration
  • SX-Virtual Link for Easy Control
  • Secure Access with 802.1x Encryption
  • Fast Roaming
  • Serial Port Emulation Mode
  • E-Cable Mode
  • AMC Manager Support
  • Raw TCP Connection Mode
  • Wireless Station (Client) Mode
  • Wireless Access Point Mode 
  • Easy wireless configuration using the push button

Model number SD-330AC
Wired LAN 10Base-T / 100Base-TX
Wireless standard IEEE802.11a/b/g/n/ac
Device interface RS-232C

Storage Temperature


-20 ~ + 70°C

20 ~ 90% RH

Operating Temperature


0 ~ + 50°C

20% ~ 80% RH (non-condensing)

IEEE 802.1X



Maximum power consumption 2 W
Regulatory Compliance FCC, IC, CE and TELEC
Supported software SX Virtual Link
Serial Device Server Setup
AMC Manager®
OS Windows 10 RS5 (32/64bit)
Windows 8/8.1 (32/64bit)
Windows 7 (32/64bit)
Windows Server 2016
Windows Server 2012R2
Windows Server 2012
Windows Server 2008R2


Click on the Software Application to download the latest software file for your product.

Serial Device Server Setup

ExtendView Software

SX-Virtual Link for Serial

AMC Manager


SD-330AC version 1.41
Release Note:

* The AP mode enables stealth SSID.
* The STA mode allows communicating with an access point with stealth SSID.


This firmware contains a program covered by an open source license such as GPL (GNU General Public License) or LGPL (GNU Lesser General Public License). Please click here for the applicable program and license.

Silex Technology, Inc. will provide the source code subject to GPL/LGPL software under terms and conditions of GPL/LGPL to individuals or groups at their own cost by distributing a media such as CD-ROM, etc. for a period of at least 3 years after the date of purchase upon written request. Please email requests to:

Warranty and RMA's

Limited Warranty and RMA (Return Merchandise Authorization) Policy