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2 in 1 DB9 RS232 to RS485 RS422 Serial Converter Plug D-Sub 9Pin Interface to 5 Pin Terminal Block RS485 Communication Adapter Full Duplex Connector (DB9 Male) DB9 Female

size: DB9 Female

2-in-1 Serial CommunicationDB9 to 5 Pin Terminal Block Adapter, Easily convert RS232 signals to RS485 (half-duplex) or RS422 (full-duplex), which can be switched at will, enabling communication between different serial interfaces and protocols.without external power supply, Plug and Play. No driver installation required.
Screw 5-Pin TerminalVersatile 2 In 1 RS232 to RS485 RS422 Serial Adapter With clearly labeled 5-Pin Screw Terminal Block, 3.81mm Pitch.
2 Installation MethodsEach DB9 Serial Port Converter is equipped with Screws and Nuts.Compatible with two locking methods, Front Rivet Nut and Rear Locking Screw, which can be switched at will.(Hex pillar: #4-40, H4.75*11.8mm; Screw: #4-40UNC).
ApplicationIndustrial 2 In 1 RS232 to RS485 RS422 Serial Port Converter, for Industrial automation equipment communication (e.g., PLC and sensor), Instrument communication, Security monitoring systems, Smart transportation and the Internet of Things, Building automation, Embedded systems, Modbus RTU, remote serial communication and so on.
Custom CableWe are a professional cable manufacturer,please contact us for customised requirements.Please contact us if the cable you received is defective or does not work.We will solve the problems properly or send you a new replacement at once.

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2-in-1 Serial CommunicationDB9 to 5 Pin Terminal Block Adapter, Easily convert RS232 signals to RS485 (half-duplex) or RS422 (full-duplex), which can be switched at will, enabling communication between different serial interfaces and protocols.without external power supply, Plug and Play. No driver installation required.
Screw 5-Pin TerminalVersatile 2 In 1 RS232 to RS485 RS422 Serial Adapter With clearly labeled 5-Pin Screw Terminal Block, 3.81mm Pitch.
2 Installation MethodsEach DB9 Serial Port Converter is equipped with Screws and Nuts.Compatible with two locking methods, Front Rivet Nut and Rear Locking Screw, which can be switched at will.(Hex pillar: #4-40, H4.75*11.8mm; Screw: #4-40UNC).
ApplicationIndustrial 2 In 1 RS232 to RS485 RS422 Serial Port Converter, for Industrial automation equipment communication (e.g., PLC and sensor), Instrument communication, Security monitoring systems, Smart transportation and the Internet of Things, Building automation, Embedded systems, Modbus RTU, remote serial communication and so on.
Custom CableWe are a professional cable manufacturer,please contact us for customised requirements.Please contact us if the cable you received is defective or does not work.We will solve the problems properly or send you a new replacement at once.

Additional Information
First Listed on Newegg	October 30, 2026

Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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