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Diamond Point International

B&B Vlinx VESP211 Series - Ethernet to Serial Converters

RS-422/485, RS-232/422/485 and RS-232 to Ethernet


VESP211 Serial Servers help increase your ROI and reduce the costs associated with legacy systems by enabling you to connect serial devices (RS-232, RS-422 or RS-485) as a node to an Ethernet network. The serial port can be accessed remotely over a LAN/WAN through an embedded web server using Direct IP Mode, Virtual COM Port, or Paired Mode connections and a simple web browser.

Enabled ROI

  • Enables remote configuration, data acquisition and monitoring
  • Enables quick, simplified off-site troubleshooting
  • Reduces/eliminates serial cabling
  • Reduces/eliminates management time and costs



InterfaceRS-232 (DB9): TD, RD, DTR, DSR, RTS, CTS, DCD plus Signal Ground
RS-485: 2-Wire Data A(-), Data B(+), GND
RS-422/485 4-Wire: TDA(-), TDB(+), RDA(-), RDB(+), GND
Data RatesUp to 230.4 Kbps
OtherLED Indicators: Serial Port, Ethernet, Ready LED's
Switches: Reset Button

• Serial Memory: 8 KB per port
• Network Memory: 4 KB
• LAN: 10/100 Mbps Auto-detecting, 10BaseT or 100BaseTX
• Ethernet: IEEE 802.3 auto detecting & auto MDI/MDI-X, 10BaseT and 100Base T
• IP Mode: Static, DHCP
• TCP/UDP: User Definable
• UDP: Unicast or Multicast
• Connection Mode Server, Client, VCOM, Paired
• Client Connection At power up or upon data arrival
• Search Serial direct COM and Ethernet Auto Search or specific IP
• Diagnostics Display PC IP, ping, test VCOM
• Firmware Upgrade Vlinx Manager
Connector(s)Serial: RS-422 DB9M or Removable Terminal Blocks (RS-422/485 models)
Power: 5.5 x 2.1 mm jack


ElectricalInput Voltage: 10 to 30 VDC
Power Consumption: 2.5 Watts Max
Mechanical7.938 x 5.257 x 2.209 cm (3.125 x 2.070 x 0.870 in)
Metal, IP 30 enclosure
SoftwareVlinx Manager: Windows XP (32/64 bit), 2003 Server (32/64 bit), Vista (32/64 bit), 2008 Server (32/64 bit), Windows 7 (32/64 bit)
TemperatureTemperature range (operation): -40 to +80°C
Temperature range (storage): -65 to +150°C
Humidity95% non-condensing
MTBF186,310 hours
Safety/CertificationFCC Part 15 Class A, CE
EMCIndustrial-Hardened, 15,000 volt-protected, 61000-6-2 certified switch

Ordering Details

BoardVESP211-EU 1 Port Mini Serial Server, RS-232/422/485, EU Power Supply
VESP211-UK 1 Port Mini Serial Server, RS-232/422/485, UK Power Supply
VESP211-232-EU 1 Port Mini Serial Server, RS-232, EU Power Supply
VESP211-232-UK 1 Port Mini Serial Server, RS-232, UK Power Supply
VESP211-485-EU 1 Port Mini Serial Server, RS-422/485, EU Power Supply
VESP211-485-UK 1 Port Mini Serial Server, RS-422/485, UK Power Supply