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Small rectangular adapter, DB9 female port on one side, spring-clamp terminal block with nine labelled pins on the other

CoolGear

CoolGear TB-DB9TO9 DB9 Female to Terminal Block Adapter

SKU CH-6G9F-J958E

Converts a DB9 male serial port to a screw-less 9-pin terminal block for RS-422 and RS-485 wiring with spring clamps accepting 20-26 AWG wire

  • FeaturesConverts the DB9 Male to Female Compact size Complete RS422
  • Converts DB9 male ports to screw-less terminal blocks for fast RS-422/485 wiring
  • Spring-clamp terminals accept 20-26 AWG solid or stranded wire without tools
  • Nine signals pass straight through from DB9 pins to terminal block for full data integrity
  • Terminal markings on the enclosure simplify signal identification during installation
  • Operates from -40 °C to 115 °C for harsh industrial environments

DB9 Female to Terminal Block Adapter

This CoolGear adapter converts a DB9 male serial port into a 9-pin screw-less terminal block. It provides direct pin-to-pin connections for all nine signals, supporting complete RS422 and RS485 data paths. The compact enclosure measures 35 by 43 by 17 millimetres and includes printed wiring labels for quick signal identification.

Installers wiring RS422 or RS485 field devices

Technicians needing fast, tool-free termination on solid or stranded wire between 20 and 26 AWG will benefit from the spring-clamp terminals with an 8.5 to 10.0 millimetre strip length. This unit is not suited for applications requiring a DB9 male connector or screw-type terminal blocks, nor for signal types outside the RS422 and RS485 standards.

Screw-less spring-clamp terminal block

The adapter terminates field wiring without screws, accepting wire gauges from 20 to 26 AWG with a strip length of 8.5 to 10.0 millimetres. It carries a power rating of 250 volts at 1.5 amps on the DB9 side and 300 volts at 2 amps on the terminal block, operating from -40 to 115 degrees Celsius.

Highlights

  • Converts DB9 male ports to screw-less terminal blocks for fast RS-422/485 wiring
  • Spring-clamp terminals accept 20-26 AWG solid or stranded wire without tools
  • Nine signals pass straight through from DB9 pins to terminal block for full data integrity
  • Terminal markings on the enclosure simplify signal identification during installation
  • Operates from -40 °C to 115 °C for harsh industrial environments

Specifications

BrandCoolgear
ModelTB-DB9TO9
Part NumberTB-DB9TO9
FeaturesConverts the DB9 Male to Female Compact size Complete RS422 or RS485 data signals

Questions about this item

How can I verify the adapter is passing all nine signals correctly after wiring it?

Connect a DB9 male cable to the female port, apply power within the 250 V 1.5 A rating, then use a multimeter or serial tester to confirm continuity on each of the nine terminal-block positions that map directly to the DB9 pins.

What comes in the box and what must I supply myself?

The package contains only the DB9 female to 9-pin screw-less terminal block adapter; you must provide 20-26 AWG solid or stranded wire stripped to 8.5-10.0 mm and a DB9 male cable for the serial-port connection.

Which version of this adapter should I choose for an RS-485 installation?

The single model TB-DB9TO9 supports both RS-422 and RS-485 with complete nine-signal wiring, so no alternate version or capacity selection is required.

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