We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small silver SFP transceiver module with side label and gold contacts

Perle

Perle CM-100-S1ST20U 10/100Base-T 100Base-BX-U SFP transceiver

SKU CH-5BDZ-RXQE4

Converts 10/100Base-T signals to single-fibre 100Base-BX-U links up to 20 km

  • FeatureNetwork Technology:10/100Base-T Network Technology:100Base-B
  • 10/100Base-T copper link for legacy LAN integration
  • 100Base-BX-U single-fibre uplink extends reach to 20 km
  • Hot-swappable SFP form factor enables tool-free module changes
  • Managed converter module supports remote configuration and monitoring
  • New condition guarantees full manufacturer specification compliance

Perle CM-100-S1ST20U SFP Transceiver

This Perle CM-100-S1ST20U is a managed Fast Ethernet converter module supplied new. It provides a single SFP transceiver slot for 100Base-BX-U single-fibre operation at 100 Mbps. The unit also supports 10/100Base-T copper connectivity for local network attachment. It suits administrators extending managed networks over single-strand fibre.

Network managers needing single-fibre uplinks

Engineers who require a managed media converter with 100Base-BX-U optics will find this module fits the role. It is not suitable for links demanding Gigabit or 10 Gigabit throughput. Buyers needing multi-mode fibre, dual-fibre single-mode or copper-only switching should look elsewhere.

100Base-BX-U single-fibre specification

The decisive parameter is the 100Base-BX-U interface, which transmits and receives on one fibre strand at 100 Mbps. Both ends of the link must use matching BX-U and BX-D wavelengths. Confirm the required wavelength pairing before ordering.

Highlights

  • 10/100Base-T copper link for legacy LAN integration
  • 100Base-BX-U single-fibre uplink extends reach to 20 km
  • Hot-swappable SFP form factor enables tool-free module changes
  • Managed converter module supports remote configuration and monitoring
  • New condition guarantees full manufacturer specification compliance

Specifications

BrandPerle
ModelCM-100-S1ST20U
FeatureNetwork Technology:10/100Base-T
Network Technology:100Base-BX-U

Questions about this item

What does the 100Base-BX-U figure mean for real-world throughput?

The module delivers 100 Mbps over a single fibre strand using bidirectional wavelengths, so actual throughput will sit near 100 Mbps in a managed Fast Ethernet link.

Which SFP standard does the CM-100-S1ST20U follow and what distance does it cap?

It conforms to the 100Base-BX-U SFP specification and is rated for 20 km reach on single-mode fibre.

What slot and fibre connector does this transceiver need to fit?

It plugs into any standard SFP cage and uses an LC simplex connector for the single-strand fibre link.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.