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BB-485SD9TB Serial Converter, RS-232 DB9 F to RS-485 2W TB, Port Powered

  • RS-232 to RS-485 2-Wire Converter
  • DB9 F / TB
  • Data rate up to 115.2 kbps
Certifications CE FCC RoHS

50 Pc(s) (In Stock)
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More Description

Port-powered, 2-channel converter changes RS232 TD and RD to RS485 for longer distance and multidrop function. Automatic Send Data Control enables driver when data is present on RS232 side. Powered from RS232 data and handshake lines (high or low). External power optional - PS sold separately.

Accessory Products



Serial Converter, RS-232 DB9 F to RS-485 2W TB, Port Powered

Accessory Products

  • Serial Cable, RS-232 DB9 M to DB9 F, 1.8 m / 6 ft

  • 12VDC Output, 0.5A Current, 6W Power, Stripped/Tinned



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Extended Specifications


  • Temperature 0 to 70C
  • Serial Type RS-485
  • RS-232 Connector DB9 Female
  • RS-422/485 Connector Terminal Block

General (X)

  • Humidity (B) 0 ~ 95%, non-condensing
  • Interface RS-232 RS-485
  • Communication Speed Serial: From 1,200 to 115.2 k
  • Comm. Distance Serial: 1.2 km
  • Connector RS-232: DB9 female;RS-485: terminal block


  • Temperature (Storage Range) -40~85°C (40~185 °F)
  • Temperature (Operating Range) 0 ~ 70° C (32 ~ 158° F)
Office Locations


Monday-Friday, 7am-5pm CST

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