1000BASE-BX-D SFP BiDi 1550nm-TX/1310nm-RX 20km DOM Simplex LC/UPC SMF Módulo Transcetor Ótico

The CT-SFP-BX-20U and CT-SFP-BX-20D are compact, high-performance bi-directional (BIDI) SFP optical transceivers designed for 1.25Gbps data transmission over single-mode fiber (SMF) up to 20 kilometers. The modules utilize a 1310nm FP laser and a 1550nm PIN photodetector for CT-SFP-BX-20U and a 1550nm DFB laser with a 1310nm PIN photodetector for CT-SFP-BX-20D. These transceivers are housed in an SFP package with LC connectors, ensuring compatibility with Ethernet, Telecom, and Fiber Channel applications. The design adheres to the IEC-60825 laser safety standards and complies with RoHS requirements.

Key features include a single +3.3V power supply, LVPECL-compatible data interfaces, excellent ESD protection, and low electromagnetic interference (EMI). Operating temperatures range from -40°C to +85°C for industrial-grade and 0°C to +70°C for commercial-grade applications. Optical characteristics like a 1310nm/1550nm center wavelength, low jitter, and high extinction ratios further enhance performance, making these transceivers suitable for robust and reliable long-distance communication systems.

These BiDi SFP modules are designed for Ethernet, Fibre Channel, and telecom networks where reliable short-to-medium reach single-fiber connectivity is required. They operate on a single +3.3 V supply, provide LVPECL-compatible I/O, and are built with low EMI and high ESD protection. Modules comply with IEC-60825 laser safety and RoHS standards.

Absolute Maximum Ratings

Operating Conditions

Optical Characteristics (0 °C to +70 °C, Vcc = 3.3 V)

Transmitter

Receiver

BiDi pair mapping

• CT-SFP-BX-20U: 1310 nm FP Tx / 1550 nm PIN Rx

• CT-SFP-BX-20D: 1550 nm DFB Tx / 1310 nm PIN Rx.

Electrical Characteristics (0 °C to +70 °C, Vcc = 3.3 V)

Transmitter I/O

Receiver I/O

EEPROM & Pins (summary)

• EEPROM (A0h): includes SFP identifier, LC connector, 1.25 Gbps nominal BR, LOS/TX_DISABLE/TX_FAULT support, and wavelength codes for 1310/1550 nm operation.

• Key pins: TX Disable (input with pull-up), TX Fault (open collector), LOS (open collector), MOD-DEF[0:2] for 2-wire serial ID. TD± and RD± are AC-coupled differential 100 Ω pairs.

• Gigabit Ethernet and access links over SMF up to 20 km.
• Telecom access and aggregation networks using BiDi optics.
• Fibre Channel SAN extension in campus and metro environments.

• Compact SFP form factor with LC interface.
• Single-fiber BiDi operation with 1310/1550 nm transmitters and PIN receivers.
• Supports up to 20 km reach on SMF.
• 3.3 V power supply, LVPECL-compatible I/O.
• Low EMI, strong ESD protection.
• IEC-60825 laser safety compliant and RoHS compatible.

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-SFP-BX-20D, 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.

Reconhecemos que cada projeto é único e a nossa abordagem flexível permite-nos adaptarmo-nos às suas necessidades específicas. Quer necessite de uma entrega imediata ou tenha requisitos mais complexos, estamos aqui para o apoiar em cada passo do processo. O nosso compromisso com a satisfação do cliente significa que nos esforçamos ao máximo para garantir que recebe os seus transceptores SFP em tempo útil, sem comprometer a qualidade. Confie na Carritech para fornecer as soluções de que precisa, quando precisa delas.

Na Carritech Optics, defendemos a qualidade e a fiabilidade dos nossos transceptores ópticos. É por isso que temos o orgulho de oferecer uma garantia vitalícia para todos os produtos, como prova do nosso compromisso com a excelência e a satisfação do cliente.

O que é que a nossa garantia vitalícia cobre?

A nossa garantia vitalícia oferece uma cobertura abrangente para todo o ciclo de vida dos seus transceptores ópticos, assegurando-lhe total tranquilidade ao escolher a Carritech Optics. A garantia cobre:

• 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.

Processo de reclamação fácil

Se alguma vez precisar de fazer um pedido de garantia, a nossa equipa está aqui para o ajudar. Basta contactar a nossa equipa de apoio com os detalhes do seu produto e iremos orientá-lo através de um processo rápido e sem complicações para resolver o problema.

O desempenho da sua rede, garantido

A Carritech Optics dedica-se a fornecer soluções ópticas de alta qualidade em que pode confiar a longo prazo. Com a nossa garantia vitalícia, pode investir com confiança nos nossos produtos, sabendo que estamos consigo em todas as fases do processo.