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Belkin F4C170 DB9 female to RJ45 female modular adapter

Belkin

Belkin F4C170 modular adapter DB9F to RJ45F

SKU CH-PBVJ-N9C3V MPN F4C170

Connects a 9-pin DB-9 female serial port to an RJ-45 female jack for modular data transfer

  • Changer TypeDB9 to RJ45
  • SpecificationsDB9F to RJ45F Modular Data Transfer Adapter
  • Connects legacy serial devices to RJ-45 infrastructure
  • DB-9 female port accepts standard serial cables
  • RJ-45 female jack fits existing network wiring
  • Compact modular design installs in tight spaces
  • Belkin F4C170 model ensures reliable pin mapping

DB9-to-RJ45 serial adapter

The Belkin F4C170 modular adapter converts a 9-pin DB9 female serial port to an RJ45 female jack. It lets legacy equipment with a DB9 interface connect through standard modular cabling. This passive adapter suits industrial, networking and laboratory gear that still relies on serial signalling.

Replaces custom gender changers

Swapping a bespoke gender changer or soldered pigtail for this adapter removes a permanent cable modification. The jump is worth it when equipment must move between racks or when a clean, reversible link is preferred over a hard-wired solution. It keeps the original DB9 port intact for future use.

Fits panel and bench wiring

The adapter sits inline between a DB9 port and an RJ45 patch lead, so no extra brackets or power are required. It frees up the DB9 connector for other serial devices while extending reach through structured cabling. Buyers needing a DB9 male interface or a different pinout will need a separate adapter.

Highlights

  • Connects legacy serial devices to RJ-45 infrastructure
  • DB-9 female port accepts standard serial cables
  • RJ-45 female jack fits existing network wiring
  • Compact modular design installs in tight spaces
  • Belkin F4C170 model ensures reliable pin mapping

Specifications

BrandBELKIN
ModelF4C170
Changer TypeDB9 to RJ45
SpecificationsDB9F to RJ45F Modular Data Transfer Adapter
Shipping weight0.45 kg
Package size127 × 76 × 23 mm

Questions about this item

Does the DB9 female connector need a specific panel cut-out or bracket to mount?

The adapter has a 9-pin DB-9 female on one end and an RJ-45 female on the other; it is a straight-through modular adapter with no integrated mounting hardware.

Which side should I plug in first when connecting a serial cable to a network jack?

Insert the DB-9 male cable into the DB-9 female end, then connect the RJ-45 patch cord into the RJ-45 female end; reversing the order does not damage the adapter but may leave the serial link inactive.

Will the gold-plated contacts need periodic cleaning or replacement?

The modular adapter contains no user-serviceable parts; if signal quality degrades, replace the entire F4C170 unit rather than attempting contact maintenance.

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