SKU: SENS-2877
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Generic Serial DB9 RS232/RS485 9-Pin Female Screw Terminal Adapter

₹104.00 (Inclusive of all taxes)
Out of Stock

This DB9 female screw terminal adapter provides a solderless breakout interface for RS232 and RS485 serial communication, enabling secure wire connections for industrial automation, PLCs, and control systems.

Features

  • DB9 Female (D-Sub 9-Pin) connector with screw terminal block for 24–16 AWG wires.
  • Dual-protocol support for both RS232 (point-to-point) and RS485 (multi-drop, long-distance) communication.
  • Solderless, tool-free installation with clearly printed wire numbering for rapid setup.
  • Durable plastic enclosure with cover, positioning nuts, and integrated cable strain relief.
  • Compact panel-mount design (45 x 34 x 15 mm) for integration into control cabinets and enclosures.

Out of stock

Description

This serial communication adapter module serves as a practical interface between standard DB9 serial ports and field wiring. It converts the pinned DB9 connector into a secure screw terminal block, eliminating the need for soldered or crimped connections. The openable plastic enclosure protects the PCB and terminals, while the integrated cable holder prevents wire strain and damage.

The adapter supports both RS232 and RS485 signaling standards, making it versatile for connecting computers, HMIs, SCADA systems, and industrial instruments to sensors, drives, and other serial devices. Its construction is designed for reliability in automation environments, facilitating both local device configuration and long-distance network communication.

Key Features

  • DB9 Female connector with industry-standard two-row D-Sub pin layout.
  • Universal screw terminal block accepts 24–16 AWG wire for flexible installation.
  • Dual-protocol hardware interface compatible with RS232 (single-ended) and RS485 (differential) communication.
  • Robust plastic housing with a removable cover for easy access and maintenance.
  • Clear, printed pin numbering (1–9) adjacent to terminals for error-free wiring.
  • Includes mounting nuts and a cable strain relief clip for secure panel integration.
  • Solderless design enables quick field modifications and repairs without specialized tools.
  • Optimized for point-to-point and multi-drop network topologies in industrial control systems.

Applications

  • Interfacing PLC programming ports (RS232) to field devices with screw terminal wiring.
  • Building RS485 multi-drop networks for building automation, HVAC, and access control systems.
  • Connecting SCADA HMIs and industrial computers to sensors, motor drives, and gauges.
  • Retrofitting legacy serial equipment with modern, tool-free wire termination.
  • Providing a test and diagnostic interface for commissioning and servicing control panels.

Technical Specifications

Connector TypeDB9 Female (D-Sub 9-Pin)
Terminal TypeScrew Terminal Block
Supported ProtocolsRS232, RS485
Wire Range24–16 AWG
Mounting StylePanel Mount (with nuts)
Enclosure MaterialPlastic
Dimensions (L x W x H)45 x 34 x 15 mm
Weight20 g
InstallationSolderless, Plug-and-Connect
Primary ApplicationIndustrial Automation & Control Systems

Frequently Asked Questions

What wire gauge does this DB9 adapter terminal block accept?

The screw terminal block is designed to securely accommodate stranded or solid core wires from 24 AWG (0.205 mm²) up to 16 AWG (1.31 mm²). Ensure wires are stripped to the appropriate length and tightened firmly to prevent loose connections.

Can I use this adapter for both RS232 and RS485 on the same connector?

Yes, the adapter provides passive access to all nine pins of the DB9 connector. The wiring scheme determines the protocol. For RS232 (point-to-point), connect TX, RX, and GND as needed. For RS485 (multi-drop), connect A (non-inverting), B (inverting), and GND. Always refer to your device's pinout documentation.

How do I mount this serial adapter into an enclosure or panel?

The DB9 connector includes threaded posts on either side. Use the supplied nuts to secure the adapter from the front of a panel through a cutout. The integrated cable holder clips onto the wire bundle exiting the rear, providing strain relief and preventing tension on the screw terminals.

Package Includes

  • 1 x DB9 Female to Screw Terminal Adapter Module
  • Mounting Nuts
  • Cable Holder/Strain Relief Clip

Additional Information

Weight 0.02 kg
Dimensions 4.5 × 3.4 × 1.5 cm