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Advantech Automation BB4WSD9TB Serial Converter

The port-powered RS-232/485 converter models BB-4WSD9TB and BB-4WSD9R enable seamless RS-232 to RS-422/RS-485 conversion, supporting data rates up to 118.2 kbps. They extend RS-232 signals up to 1.2 km with automatic send data control, suitable for industrial and automation applications. The models feature selectable RS-422 or RS-485 modes via DIP switch, support port-power from RS-232 handshake lines or external 12 VDC power, and include DB9 female and terminal block connectors. Compact, reliable, and easy to install, they are ideal for serial communication extension in challenging environments.

Authorized Distributors
Source:Newark
Part No:BB-4WSD9TB
Stock:26
Inv Date:05-30-2026
Price: Unit price: $95
Buy/RFQ:
Source:DigiKey
Part No:BB-4WSD9TB
Stock:15
Inv Date:05-30-2026
Price: Unit price: $95
Buy/RFQ:
Part No:BB-4WSD9TB
Stock:52
Inv Date:05-31-2026
Price: Unit price: $95
Buy/RFQ:

Advantech Automation BB4WSD9TB Serial Converter Specifications:

  • Data Rate: 118.2 kbps maximum
  • RS-232 Connector: DB9 female
  • Signals Supported: RD, TD, GND, RTS, CTS, DSR, DCD, DTR
  • RS-422/RS-485 Connector: DB9 female or terminal block (model dependent)
  • Biasing Resistors: 4.7k Ohms
  • Operation Modes: RS-422, RS-485 two or four wire, auto transmit control
  • Power: Port-powered from RS-232 handshake lines or external 12 VDC supply, 7-12 VDC input
  • Dimensions: BB4WSDOR: 7.8 x 4.3 x 2.0 cm; BB4WSDOTB: 9.0 x 4.3 x 2.3 cm
  • Weight: BB4WSDOR: 49 g; BB4WSDOTB: 50 g
  • Operating Temperature: -40 to +85°C
  • Storage Temperature: -40 to +85°C
  • Enclosure: Plastic, Inline
  • Certifications: FCC Part 15, CE, CISPR, RoHS
  • Standards: EN 55032, EN 55024, EN 61000-6-3, EN 61000-6-1

Buy the Advantech Series BB-4WSD9RS RS-232 to RS-485 Converter: BB4WSD9TB

Enhance your industrial communication setup with the Advantech Series BB4WSD9TB RS-232 to RS-485 converter. This compact device supports data rates up to 118.2 kbps, extends signals up to 1.2 km, and offers automatic transmit control for effortless installation. It features selectable RS-422 or RS-485 mode via DIP switch, powered either from RS-232 handshake lines or via an external 12 VDC power supply. Suitable for automation, manufacturing, and remote control applications, it provides reliable, long-distance serial data conversion with easy connectivity options.

Buy Advantech BB4WSD9TB now and experience unmatched reliability and performance in industrial serial communication solutions.

Frequently Asked Questions

Where can I buy Advantech Automation BB4WSD9TB?

You can click on the BUY or RFQ button to purchase BB4WSD9TB from an authorized Advantech Automation distributor.

How do I troubleshoot issues or seek technical support for part BB4WSD9TB?

You can download the BB4WSD9TB datasheet or visit the Advantech Automation website for support.

Who is the manufacturer of BB4WSD9TB?

Advantech Automation

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