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BB-485SD9R Serial Converter, RS-232 DB9 F to RS-485 2W DB9 F, Port Powered

  • Extend RS-232 data signals up to 1.2 km (4,000 ft.)
  • Change RS-232 TD and RD to RS-485 signals
  • Automatic Send Data Control - no software drivers necessary
  • Baud rates up to 115.2 kbps
Certifications CE FCC RoHS
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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).

Accessory Products



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

Accessory Products

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



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Extended Specifications


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

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 DB9


  • 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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