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DB9 RS232 female to RJ45 female converter adapter pair

YINGHUA

YINGHUA DB9 RS232 Female to RJ45 Female Converter 100FT

SKU CH-A01J-N2B5R

Connects an RS232 serial port to an RJ45 network cable for signal extension up to 100FT without external power

  • Product typeHDMI
  • Extends RS-232 links up to 100 ft over standard CAT5/CAT6 cable
  • Operates without any external power supply for simple deployment
  • Converts DB9 female serial port to RJ45 female for LAN cabling
  • Supports CAT5, CAT5e and CAT6 network cables for flexible wiring
  • Enables serial-to-Ethernet extension using a single adapter pair

DB9 RS232 to RJ45 Converter

This adapter connects a DB9 RS232 serial port to an RJ45 jack so signals can travel over standard CAT5 or CAT6 cable. It is aimed at installers and technicians who need to extend legacy COM-port equipment across longer runs without installing new serial cabling.

Signal Extension Over Twisted Pair

The converter carries RS232 signals up to 100 feet using ordinary network cable instead of a dedicated serial link. No external power supply is required, so the link draws nothing beyond what the host port provides.

Passive Operation Characteristics

Because the unit is entirely passive it generates no heat and adds no audible noise to the installation. Power draw is effectively zero, leaving the host device’s serial port to supply only the normal signalling current.

How it compares

Measured against everything we stock in Serial & Protocol Converters, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 90% of the 121 comparable items (median $19.99).

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Specifications

Product
Product typeHDMI

Questions about this item

Does the passive RS-232-to-RJ45 adapter generate any heat or noise during continuous use?

The unit is completely passive and requires no external power, so it produces no heat and makes no noise even when running all day.

What cables and connectors must I already have to link my DB9 serial port to the network cable?

You need a standard DB9 RS-232 male cable for the device side and a CAT5, CAT5e or CAT6 patch cable with RJ45 plugs for the 100 ft link.

Will this converter work with legacy equipment that only provides a 232-level DB9 signal?

Yes, it is designed to extend native RS-232 signals over twisted-pair cable, so older 232-level gear connects without any protocol translation.

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