DB9 Female 9-Pin to Terminal Block Adapter

Terminal Block Connector

This Screw-less terminal block adapter is designed for fast and easy connection from DB9 female to spring clamp terminal block wiring for RS-422 / 485 in one small convenient package.

  • Converts the DB9 Male input connected to the Female DB-9 serial port to a terminal block connection for fast easy wiring applications.
  • Supports screw-less wiring with complete RS422 or RS485 data signals.
  • Extremely compact terminal block connector reduces bulky adapters when needed.
  • Easy identification on the adapter for 9 signal pins.


In stock

Volume Pricing

Units Discount Price
1 - 4 $16.95
5 - 11 3 % $16.44
12 - 24 5 % $16.10
25 - 49 7 % $15.76
50+ 10 % $15.26

Model No. TB-DB9TO9


DB9 Female to Screw-less 9-Pin Terminal Block Adapter

The TB-DB9PIN9 is a DB9 Female to (9-Pin Terminal Block Adapter) that conveniently provides an immediate solution to convert a DB-9 Male serial port to a terminal block for fast and easy wiring in RS-422 and RS-485 applications.

The screw-less terminal block wiring provides complete Data signals for connecting RS-422/485 field wiring to a serial port. The nine signals of the terminal block are connected directly to the 9 pins of the DB9 female connector.

The Terminal Block Wiring is marked on the adapters enclosure to ensure easy signal identification.


DB9 Pin Terminal Block Adapter Features & Specifications

  • Converts DB9 female to 9-pin terminal block
  • Screw-less terminal block with spring clamps for easy and fast wiring
  • Terminal block provides complete 9 signals connecting directly to the 9 pins of the DB9 female connector
  • Terminal Block Wire range:
    • Solid/Stranded wire (AWG): 20-26
    • Wire strip length: 8.5-10.0 mm / 0.34-0.39 inch
    • Power Rating: DB9: 250V, 1.5A.
    • Terminal Block: 300V, 2A
    • Operating temperature: -40°C to 115°C ( -40°F to 239°F )


35 (L) x 43 (W) x 17 (H) mm

1.38 (L) x 1.69 (W) x 0.67 (H) inch


Product Specifications



Other Data



0.087 lbs


4.750 × 3.375 × .750 in

UPC: 736983900784

Product Documentation & Drivers

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