STARTECH DB92422 RS422 RS485 DB9 to 5 pin terminal block data converter

Industrial Serial Adapter

The StarTech DB92422 converts a DB9 male RS422 or RS485 port into a 5 pin terminal block connection. It is designed for engineers and integrators who need to link industrial equipment to standard serial interfaces. The black adapter meets screw-type wiring standards and supports signal ground over the terminal block. It provides a direct mechanical and electrical bridge without active circuitry.

Installers Needing Screw Terminals

This unit suits technicians who must terminate field wiring onto a DB9 serial port using 3.5 mm pitch terminal blocks. It works with four-wire RS422 and two-wire RS485 configurations commonly found in automation panels. Buyers requiring gender changers, null-modem crossover, or optical isolation should look elsewhere. The adapter does not convert signal levels or provide protocol translation.

Terminal Block Capacity

The 5 pin terminal block accepts solid or stranded wires sized for 3.5 mm pitch industrial terminals. It comfortably handles the four signal lines plus ground required by RS422 and RS485 loops. Headroom ends when the application demands more than five conductors, galvanic isolation, or a different connector pitch.