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CT-SFP28-BX-20U
Compatible optical transceiver

Modulo ricetrasmettitore ottico SFP28 25GBASE-BX20-U BiDi 1270nm-TX/1330nm-RX 20km DOM Simplex LC/UPC SMF per 5G Wireless

Form Factor: SFP28
Max Reach: 20KM
Interface Type: LC
Media: SM
Part number CT-SFP28-BX-20U

25G BIDI SFP28 1270/1330NM 20KM

Carritech CT-SFP28-BX-20U and CT-SFP28-BX-20D are 25Gbps bi-directional SFP28 optical transceivers designed for single-mode fiber links up to 10 km. Featuring DML transmitters and PIN/TIA receivers, they support 25GBASE-LR Ethernet and CPRI/eCPRI applications with low power consumption and full digital diagnostics.

Quality assured Tested, compliant and backed by lifetime warranty.

Lifetime Warranty
FCC Mark
CE Mark
RoHS Compliant
ISO 9001
ISO 14001
Hardware compatibility

Popular hardware this transceiver is compatible with:

The hardware listed below is a selection of key popular equipment, not a complete compatibility list. This transceiver may also be compatible with many other hardware models. Contact us and we can check the exact hardware you need.

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Product information

CT-SFP28-BX-20U Details

Review the technical specifications, applications, features, delivery information and warranty coverage for this product.

Specifiche tecniche

01

The 25Gbps Bi-Directional SFP28 Transceiver is a high-performance module designed for single-mode fiber (SMF) communication over distances of up to 10 kilometers. Supporting data rates from 24.33Gbps to 25.78Gbps, it is ideal for applications such as 25GE BASE-LR Ethernet and CPRI Option 10/eCPRI. This transceiver is available in two configurations: the CT-SFP28-BX-20U, which features a 1270nm DML laser transmitter and a 1330nm receiver, and the CT-SFP28-BX-20D, which uses a 1330nm DML laser transmitter and a 1270nm receiver. With compliance to SFP28 MSA, SFF-8472, SFF-8431, and SFF-8432 standards, it ensures compatibility with a wide range of networking equipment.

Operating on a +3.3V power supply and consuming less than 1.2W, the module is highly energy-efficient. The transmitter delivers an average optical power output between -4dBm and +4dBm, with an extinction ratio of 3.5dB, while the receiver supports a sensitivity of -11dBm and an overload threshold of +2dBm. Advanced features like Loss of Signal (LOS) detection and integrated digital diagnostics allow real-time monitoring of parameters such as temperature, voltage, bias current, transmitted power, and received power. Designed for commercial (0°C to 70°C) and industrial (-40°C to 85°C) temperature ranges, the hot-pluggable transceiver ensures reliable performance and easy integration into modern networking systems.

These hot-pluggable transceivers support 24.33 to 25.78 Gbps operation and comply with IEEE 802.3cc, SFP28 MSA, SFF-8431, SFF-8432, and SFF-8472 standards. They use a simplex LC connector for single-fiber transmission: BX-20U transmits at 1270 nm and receives at 1330 nm, while BX-20D transmits at 1330 nm and receives at 1270 nm. Designed for 10 km reach, the modules integrate internal CDR on both Tx and Rx chains to ensure low jitter and stable operation. Power consumption is <1.2 W with a single 3.3 V supply, and both commercial (0 °C to +70 °C) and industrial (−40 °C to +85 °C) temperature ranges are available. Integrated DDMI provides real-time monitoring of key operating parameters.

Parametri chiave

Specification CT-SFP28-BX-20U CT-SFP28-BX-20D Notes
Form factor / connector SFP28 (hot-pluggable), LC simplex SFP28 (hot-pluggable), LC simplex Single-fiber bidirectional
Velocità dei dati 24.33 – 25.78 Gbps 24.33 – 25.78 Gbps Supports rate adaptation
Reach Up to 10 km SMF Up to 10 km SMF
Lunghezza d'onda Tx 1270 nm 1330 nm DML laser
Lunghezza d'onda Rx 1330 nm 1270 nm PIN/TIA receiver
Tx optical power −4 to +4 dBm −4 to +4 dBm Average
Rapporto di estinzione ≥ 3,5 dB ≥ 3,5 dB
Spectral width ≤ 1 nm ≤ 1 nm
Side-mode suppression ≥ 30 dB ≥ 30 dB
Tx off power ≤ –30 dBm ≤ –30 dBm
Receiver sensitivity ≤ −11 dBm (OMA) ≤ −11 dBm (OMA) BER ≤ 5 × 10⁻⁵
Receiver overload +2 dBm max +2 dBm max
Receiver reflectance ≤ –12 dB ≤ –12 dB
LOS assert/de-assert −30 dBm / −17 dBm −30 dBm / −17 dBm 0.5 dB hysteresis
Tensione di alimentazione 3.14 – 3.46 V 3.14 – 3.46 V Single 3.3 V supply
Consumo di energia <1.2 W <1.2 W
Diagnostica Temp., bias, Tx/Rx power, Vcc Temp., bias, Tx/Rx power, Vcc Digital diagnostics (DDMI)
Operating case temp. 0 °C to +70 °C (commercial), −40 °C to +85 °C (industrial) Same
Compliance IEEE 802.3cc, SFP28 MSA, SFF-8431/8432/8472, RoHS, EN 60825 Class 1 Same Standards compliant

Applicazioni

02
  • 25GBASE-LR Ethernet up to 10 km over single-mode fiber.
  • CPRI Option 10 and eCPRI fronthaul/backhaul.
  • Enterprise and access networks with single-fiber deployment.
  • Cost-optimized metro and carrier-grade connections.

Caratteristiche

03
  • Bi-directional 25G SFP28 with simplex LC connector.
  • Supports up to 10 km over SMF.
  • DML laser transmitter and PIN/TIA receiver.
  • Internal CDR for both Tx and Rx chains.
  • Low power consumption (<1.2 W).
  • Real-time digital diagnostics (DDMI) with alarms and warnings.
  • Available in commercial (0–70 °C) and industrial (−40–85 °C) ranges.
  • Fully compliant with IEEE 802.3cc, SFF-8431/8432/8472, RoHS, EN 60825 Class 1.

Consegna

04

At Carritech, we pride ourselves on our exceptional service and commitment to meeting our customers’ needs. Our extensive range of SFP transceivers, including the CT-SFP28-BX-20U, is designed to cater to various requirements, ensuring that you receive the best solutions for your projects. We understand the importance of timely delivery, and our efficient processes are geared towards providing you with the products you need as quickly as possible. Our dedicated team works tirelessly to ensure that your orders are processed and dispatched promptly, so you can rely on us for swift and reliable service.

Siamo consapevoli che ogni progetto è unico e il nostro approccio flessibile ci permette di adattarci alle vostre esigenze specifiche. Sia che abbiate bisogno di una consegna immediata, sia che abbiate esigenze più complesse, siamo qui per supportarvi in ogni fase del processo. Il nostro impegno per la soddisfazione del cliente ci porta a fare di più per garantire che riceviate i ricetrasmettitori SFP in modo tempestivo, senza compromettere la qualità. Affidatevi a Carritech per ottenere le soluzioni di cui avete bisogno, quando ne avete bisogno.

Garanzia

05

Noi di Carritech Optics siamo convinti della qualità e dell'affidabilità dei nostri ricetrasmettitori ottici. Ecco perché siamo orgogliosi di offrire una garanzia a vita su tutti i prodotti, a testimonianza del nostro impegno per l'eccellenza e la soddisfazione dei clienti.

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La nostra garanzia a vita offre una copertura completa per l'intero ciclo di vita dei ricetrasmettitori ottici, assicurandovi la massima tranquillità quando scegliete Carritech Optics. La garanzia copre:

  • Defects in Materials and Workmanship: If your product experiences any issues related to manufacturing or materials, we’ll repair or replace it free of charge.
  • Performance Assurance: Our optical transceivers are rigorously tested to meet industry standards, and we guarantee they’ll perform as expected in your network environment.

Facile procedura di rimborso

Se doveste avere bisogno di un reclamo in garanzia, il nostro team è qui per assistervi. Basta contattare il nostro team di assistenza con i dettagli del prodotto e vi guideremo attraverso un processo rapido e senza problemi per risolvere il problema.

Prestazioni della rete garantite

Carritech Optics si impegna a fornire soluzioni ottiche di alta qualità di cui ci si possa fidare a lungo. Grazie alla nostra garanzia a vita, potete investire con fiducia nei nostri prodotti, sapendo che siamo al vostro fianco in ogni momento.

Scheda tecnica

06

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SFP28 25GBASE-BX20-U BiDi 20km