B & B Electronics offers  Wireless Ethernet Serial Server $299.95.

NEW!  Wirelessly connect your legacy serial devices with 802.11

The Vlinx™ family of wireless Ethernet Serial Servers transparently connects, configures, and communicates with serial devices over industry leading 802.11g 54Mbps, and 802.11b 11Mbps compatible Wi-Fi wireless connections. For applications where running cable is not an option, the Vlinx™ ESR solution combines wireless data networking with proven asynchronous connectivity. Available in 1, 2, and 4 port versions with support for RS-232, RS-422, and RS-485 interfaces.

Features

• 2.4 GHz IEEE 802.11g DSSS radio
• 802.11g provides 100% 802.11b compatibility
• Rugged, IP30 enclosure, DIN or panel mount options
• Protocols: TCP, IP, ARP, DHCP, HTTP, UDP, ICMP
• LEDs provide at-a-glance operational status: power, signal strength, LAN-link, data
• Security: WEP (62/128 bit), WPA (ESR901WB only), EAP admin/config password protection
• Supports TCP server, TCP client, virtual COM, Pair mode

Specifications

• Wireless transmission rates (Mbps): 54, 11, 5.5, 2, 1
• 12 to 48 VDC, 24 VAC terminal block input
• RF power 15 dBM
• RJ-45 Ethernet configuration port
• Serial data rates: 110, 300, 600, 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400, 57600, 115200, 230400
• Operating temperature: 0° to 60° C
• Status indicators: power, link activity, signal strength
• Antenna, omni-directional included — reverse SMA connector
• Dimensions: 6.9 x 5.7 x 2.3 in (17.4 x 14.5 x 5.8 cm)