SKU: SENS-2875
📋 GST Invoice Available

Generic DB9 Male RS232/RS485 Serial Terminal Adapter - 9-Pin Screw Terminal

₹104.00 (Inclusive of all taxes)
Out of Stock

This DB9 male serial adapter provides a solderless interface between a standard 9-pin D-Sub connector and screw terminals, supporting RS232 and RS485 communication protocols for industrial control, automation, and embedded system development.

Features

  • Standard DB9 male connector for RS232 and RS485 serial communication.
  • 9-position screw terminal block for secure, solderless wire connections (24–16 AWG).
  • Compact PCB design (46 x 31 x 16 mm) suitable for panel or enclosure mounting.
  • Enables quick installation, testing, and maintenance of serial communication links.
  • Supports point-to-point and multi-drop RS485 communication for extended distances.

Out of stock

Description

This serial communication adapter bridges the gap between a standard DB9 male connector and field wiring via a screw terminal block. It eliminates the need for soldering, allowing for rapid connection of RS232 or RS485 signals in industrial and development environments. The robust PCB construction and metal connector ensure reliable signal transmission and mechanical durability.

Designed for flexibility, it supports both RS232 (point-to-point) and RS485 (multi-drop) protocols, making it suitable for a wide range of applications from legacy equipment interfacing to modern industrial automation networks. The screw terminals accept 24–16 AWG wire, providing a secure and vibration-resistant connection ideal for field installations and control cabinets.

Key Features

  • Dual-protocol support for RS232 and RS485 serial communication standards.
  • Solderless screw terminal block for quick and reliable wire termination.
  • Standard DB9 male D-Sub connector for direct interface with serial ports.
  • Compact and durable PCB construction for long-term reliability in industrial settings.
  • Panel-mount compatible design for easy integration into enclosures and control panels.
  • Facilitates easy testing, maintenance, and reconfiguration of serial communication lines.
  • Ideal for bridging legacy equipment with modern control systems and data loggers.

Applications

  • Interfacing industrial PLCs and HMIs with RS232/RS485 peripherals.
  • Connecting data loggers, SCADA systems, and telemetry equipment to serial networks.
  • Prototyping and development with embedded systems (Arduino, Raspberry Pi with USB-serial adapters).
  • Maintenance and troubleshooting of legacy manufacturing and process control equipment.
  • Building custom adapters for HVAC controls, access systems, and point-of-sale terminals.

Technical Specifications

Product TypeSerial Communication Adapter
Connector Gender & TypeMale, DB9 (D-Sub 9 Pin)
Number of Pins9 Pins
Supported ProtocolsRS232, RS485
Terminal TypeScrew Terminal Block
Wire Range24–16 AWG
Mounting StylePanel/Enclosure Mount Compatible
Dimensions (L x W x H)46 x 31 x 16 mm
Weight20 g
Primary ConstructionPCB with Metal DB9 Connector

Frequently Asked Questions

What wire gauge does the screw terminal block accept?

The terminal block is designed to securely accept stranded or solid core wires in the range of 24 to 16 AWG. Ensure wires are properly stripped and tightened to prevent loose connections.

Does this adapter support both RS232 and RS485 simultaneously?

No, it provides a physical pass-through connection for the wires corresponding to the DB9 pins. You must configure your connected devices for either RS232 (typically using TX, RX, GND) or RS485 (typically using A, B, GND) protocols. It does not perform protocol conversion.

How do I determine the pinout for RS485 wiring?

For RS485, you typically connect to the 'A' (non-inverting) and 'B' (inverting) differential pair lines, along with a ground. The specific terminal screw assigned to each DB9 pin is usually labeled on the PCB. Consult the pinout diagram of your RS485 device and match it to the corresponding terminal on the adapter.

Can this be used for panel mounting?

Yes, the adapter's compact PCB design can be mounted inside an enclosure or panel. You will need to provide your own mounting hardware (e.g., standoffs) and ensure the DB9 connector is accessible through a cutout. The board itself does not have integrated mounting brackets.

Package Includes

  • 1 x DB9 Male RS232/RS485 Screw Terminal Adapter

Additional Information

Weight 0.02 kg
Dimensions 4.6 × 3.1 × 1.6 cm