Compatible optical transceiver

Gigamon QDD-503 Compatible QSFP-DD LR4 400G PAM4 1310nm 10km DOM Duplex LC/UPC SMF Optical Transceiver Module

Form Factor: QSFP-DD
Max Reach: 10KM
Interface Type: LC
Media: SM
Part number QDD-503

Fully compatible Carritech alternative

Carritech Optics can offer CT-400G-QDD-LR4 as a fully compatible, high-quality alternative to Gigamon QDD-503. This Carritech alternative is matched against the key optical specifications and can be programmed and tested for your network requirements.

Carritech part number: CT-400G-QDD-LR4

400G QSFP-DD LR4 1310NM 10KM

400G QSFP-DD LR4 transceiver for 400GBASE-LR4 Ethernet, supporting up to 10 km transmission over single-mode fiber with CWDM4 lasers, duplex LC interface, and ~12 W power consumption.

 

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

QDD-503 Details

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

Especificações

01

The CT-400G-QDD-LR4 from Ótica Carritech is a QSFP-DD LR4 transceiver module designed for 400GBASE-LR4 applications, supporting data rates up to 400Gbps. Utilising a CWDM4 laser and PIN receiver, it enables reliable transmission over single-mode fiber (SMF) up to 10 kilometers. It operates with an 8×53.125Gbps PAM4 electrical interface (400GAUI-8) and features integrated digital diagnostic monitoring through an I2C interface. The module is compliant with QSFP-DD CMIS rev4.0, IEEE 802.3cu, and QSFP-DD MSA hardware standards, with RoHS compliance under EU Directive 2015/863/EU. The transceiver operates within a 0°C to 70°C case temperature range and consumes a typical power of 12W.

Designed for data center and cloud networking applications, the module provides precise optical performance with a wavelength range spanning 1264.5nm to 1337.5nm across four lanes. It delivers high extinction ratios, consistent signal strength, and robust operational reliability. The CT-400G-QDD-LR4’s QSFP-DD MSA package with an LC duplex connector ensures easy integration and scalability for modern high-speed optical networks.

The CT-400G-QDD-LR4 is a hot-pluggable QSFP-DD optical module designed for 400GBASE-LR4 Ethernet. It delivers 400 Gb/s aggregate bandwidth via 8×53.125 Gb/s PAM4 electrical lanes (400GAUI-8) mapped into 4 CWDM optical channels (1271–1331 nm). The module supports transmission up to 10 km on G.652 SMF with host FEC, consumes ~12 W, and provides integrated digital diagnostics monitoring (DDM) accessible via I²C.

Principais especificações

  • Fator de forma / normas: QSFP-DD MSA; IEEE 802.3cu 400GBASE-LR4; CMIS rev4.0 compliant.
  • Data rate: 400 Gb/s (8×53.125 Gb/s PAM4 lanes).
  • Alcance: Up to 10 km on G.652 SMF (with FEC).
  • Optical wavelengths (CWDM4 grid): 1271, 1291, 1311, 1331 nm.
  • Conector: Duplex LC.
  • Consumo de energia: ~12 W (max 3.45 A @ 3.3 V).
  • Tensão de alimentação: 3.13-3.47 V.
  • Temperatura da caixa de operação: 0 °C a 70 °C.
  • Diagnóstico: I²C interface with integrated DDM (temperature, voltage, bias, TX/RX power).
  • Conformidade: IEEE 802.3cu, QSFP-DD MSA, EU 2015/863/EU RoHS.

Caraterísticas ópticas (por pista, exceto quando indicado)

Parâmetro Valor
Lane signaling rate 106.25 Gb/s PAM4
Wavelengths 1271, 1291, 1311, 1331 nm
TX avg launch power −2.7 to +5.1 dBm
OMAouter per lane 0.3 to +4.4 dBm
Rácio de extinção ≥ 3,5 dB
TDECQ ≤ 3.9 dB
RX avg input power −9 to +5.1 dBm
RX sensitivity (OMAouter) ≤ −6.8 dBm
RX damage threshold ≤ +6.1 dBm
SMSR ≥ 30 dB

 

Aplicações

02
  • 400GBASE-LR4 Ethernet links up to 10 km on SMF.
  • Cloud and data center interconnects (DCI) needing medium-long reach optics.
  • High-capacity metro and enterprise backbones.

 

Caraterísticas

03

Carritech Optics can offer a fully compatible, high-quality alternative to Gigamon QDD-503.

Carritech part number: CT-400G-QDD-LR4

  • QSFP-DD hot-pluggable form factor with duplex LC.
  • CWDM4 lasers with PIN receivers for 10 km transmission.
  • Supports 400GBASE-LR4 Ethernet over G.652 SMF.
  • Integrated DDM via I²C for real-time monitoring.
  • Power consumption ~12 W with +3.3 V supply.
  • Compliant with IEEE 802.3cu, CMIS 4.0, and RoHS.

 

Entrega

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 QDD-503, 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.

Garantia

05

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.

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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.

Ficha de dados

06

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Carritech compatible alternative

A fully compatible Carritech alternative is available

The Carritech Optics product shown below is a high-quality, lower-cost alternative to this manufacturer part number. It has been matched using the relevant optical specifications and compatibility requirements. Select the product to view the full details.

High-quality compatible alternative
Matched to key optical specifications
Tested before shipment

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QDD-503 Gigamon CT-400G-QDD-LR4 400G QSFP-DD LR4 QSFP-DD LR4 400G PAM4 1310nm 10km DOM Duplex LC/UPC SMF Optical Transceiver Module QSFP-DD 10KM LC SM