I saw this product in a Globalspec press release:

1-port RS232/422/485 to 802.11b/g & 1-port LAN Industrial Device Server

Lantech IWDS-2101 is an innovative 1port RS232/422/485 to 802.11b/g WLAN and 1 port LAN Industrial Device Server. Users are able to configure IWDS-2101 by Tool via LAN port or WLAN interface, but not simultaneously. Once LAN port is activated, WLAN interface will enter standby mode to minimize power consumption. Secondly, IWDS-2101 can simultaneously transfer data into 5 host PCs. This feature can assure all critical data that saved in different host PCs to avoid ethernet break or host PCs failure. Thirdly, IWDS-2101 provides dual redundant power inputs both on DC power jack and terminal block.

Lantech IWDS-2101 Industrial Device Server also provides NAT pass through function so that users are able to manage IWDS-2101 inside or outside NAT router. It is easy for different IP domain users to use the Switch. Therefore, IWDS-2101 is the best communication solution for wireless application of serial devices.

Features

• High Speed Air Connectivity: WLAN interface support up to 54Mbps link speed
• Highly Security Capability: WEP/WPA/WPA2/802.1X/Radius/TKIP supported
• NAT-pass through: User can manage IWDS-2101 through NAT router
• Redundant Power Inputs: 12~48VDC on power jack and terminal block
• Redundant multiple host devices: 5 simultaneous in Virtual COM, TCP Server, TCP Client mode
• Secured Management by HTTPS and SSH
• Versatile Modes: Virtual Com, Serial Tunnel, TCP Server, TCP Client, UDP Event Warning by Syslog, Email, SNMP trap, and Beeper
• Various Windows O.S. supported: Windows NT/2000/XP/2003/VISTA