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DB9 9-pin female to 2.5 mm 3P male jack adapter serial RS232

Ruth's sister

Ruth's sister DB9 9-pin female to 2.5 mm 3P male jack adapter serial RS232

SKU CH-BA3R-2MHB4

Connects a DB9 9-pin female serial port to a 2.5 mm 3P male jack for RS232 devices

  • Connect legacy serial devices via DB9 female port
  • Adapt RS232 signals to 2.5 mm 3-pole male jack
  • Link glucometer or radio equipment through standard serial interface
  • New adapter ensures reliable data transfer for RS232 applications

DB9 to 2.5 mm serial adapter

This adapter connects a DB9 9-pin female serial port to a 2.5 mm three-pole male jack. It is intended for users who need to link legacy RS-232 equipment such as glucometers or radios to a device that uses the smaller jack interface.

Replaces a missing or damaged serial cable

The jump is worth it when the original cable for a glucometer or radio is lost or the connector has failed. It is not for buyers who need a USB connection or a different jack size.

How it compares

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Price $9.99
Typical for this category: the median of 1,208 items is $9.99.

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Specifications

No published specifications for this item yet.

Questions about this item

What physical space does the 2.5 mm jack need for insertion?

The 2.5 mm 3P male jack requires a matching 2.5 mm female socket with three conductors; check the device port depth before connecting.

How is the DB9 end secured during installation, and what step is often missed?

Align the 9-pin female connector with the RS232 port, press firmly until seated, and tighten the thumbscrews — skipping the screws leaves the link loose.

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