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Pair of DB9 female to RJ45 female adapters, beige plastic bodies with metal ports

YINGHUA

YINGHUA DB9 RS232 Female to RJ45 Female Adapter 1 Pair

SKU CH-8BWD-F3ZTS

A pair of DB9 RS232 female-to-RJ45 female adapters extends serial signals up to 100 feet over CAT5 or CAT6 cable without external power

  • Product typeHDMI
  • Connect legacy serial gear to structured cabling
  • Extends RS-232 links up to 100 ft over CAT5/6
  • Works without any external power supply
  • Simple plug-and-play DB9 female to RJ45 female
  • Supplied as a matched pair for both ends

Connect legacy serial gear

This pair of DB9 RS232 female to RJ45 female adapters lets you run serial signals over standard CAT5 or CAT6 Ethernet cable up to 100 ft. No external power is required, so installation stays simple. It suits integrators extending COM ports in industrial or networking racks.

Check cable type and pin plan

Verify that your site uses CAT5, CAT5e or CAT6 patch cable with the correct RS232 pin assignment for the adapter. The DB9 side is female, so your device or cable must present a male DB9 connector. Ensure the run does not exceed the 100 ft signal limit.

Passive operation keeps heat and noise nil

Because the adapters draw no power, they add no heat and produce no audible noise in normal use. Power draw at the serial port remains unchanged. The passive design means no fans, no active circuitry and no thermal load on the rack.

How it compares

Measured against everything we stock in Interface & Card Adapters, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 90% of the 354 comparable items (median $21.99).

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Specifications

Product
Product typeHDMI

Questions about this item

What cables and connectors are included with the pair of adapters?

The package contains two DB9 RS232 female to RJ45 female adapters. You must supply your own CAT5, CAT5e or CAT6 Ethernet cables with RJ45 male plugs to link them.

The title mentions CAT5 and CAT6 — which cable type should I use for the 100 ft distance?

CAT5, CAT5e or CAT6 cables all support the stated 100 ft signal reach; choose whichever you already have or prefer.

Does the 100 ft figure assume a direct cable run or can I patch through a wall plate?

The 100 ft limit applies to the total cable length between the two adapters, whether it is a single patch cord or a run with wall plates and patch panels.

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