RS-232/422/485 To Fiber Converter, WDM-A 20KM, TX1310nm - RX1550nm, SC Connector

RS-232/422/485 To Fiber Converter, WDM-A 20KM, TX1310nm - RX1550nm, SC Connector

Marsoni

M251S

$139.50

Get it in 3 business days with 1 day shipping. Friday, May 29

RS-232/422/485 To Fiber Converter, WDM-A 20KM, TX1310nm - RX1550nm, SC ConnectorThe STF 300C WA20 provides a fiber converter solution to extend RS 232 or RS 422 RS 485 transmission distance up to 20km over single mode fiber (WDM). The converter is equipped with multiple interface circuits, for connection to RS 232, RS 423, or RS 422 485 (2 or 4 wire). The STF 300C WA20 secures data transmission over EMI resistant fiber at speeds up to 256kbps for RS 232 or up to 1024kbps for RS 422 485.

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UPDATE: Two tips broke off when unplugging them from the binding post and are now lodged in. Inexcusable and an utterly poor product. Solid connection in the binding post with no wobble or wiggle. They require some force to insert into the binding post, but once they're in they remain snug. I also tried removing and reinserting a few times and the connection remained solid. I've used other plugs in the past that have a softer tip and easily deform after one or two insertions. These do not have that issue.

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Reviewed in the United States on January 11, 2026

Verified Purchase

Dane W.

Lowell, US

★★★★★ 5

Great plugs

Size: 2 Pairs / 4 pcs

These are great plugs! Worked like it should!

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Reviewed in the United States on December 26, 2024

Verified Purchase

bob

Phoenix, US

★★★★★ 3

Does the job, easy use, a bit bulky not exactly as described

Size: 12 Pairs / 24 pcs

Bare wire can be intolerable to work with. Banana plugs make a positive secure connection. These plugs are a touch bulky. Nice to not have to deal with small screws. Use as large of gauge wire as possible. The description says no unintentional disconnections. I beg to differ the bite of teeth aren’t as good as described. Used a 16 gauge pure copper speaker wire and a teenager taught me how secure the wire really is by tugging on the wire not the banana plug pulling the wire free. It does the job, it’s not the latest and greatest. If you need easy get these. If you want slim secure banana plugs buy the small screw type.

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Reviewed in the United States on July 3, 2025