Especificações
The QSFP DD LR8 400G is a high-performance 400Gbps QSFP-DD optical transceiver designed for long-range communication over single-mode fiber (SMF) up to 10 kilometers. Utilizing an 8-lane MUX/DEMUX architecture, the module converts 8 channels of 50Gbps (PAM4) electrical input into optical signals and multiplexes them into a single 400Gbps optical output. On the receiver side, the process is reversed to deliver 8 channels of 50Gbps (PAM4) electrical output. This module is compliant with IEEE 802.3bs (400GBASE-LR8), QSFP-DD MSA and CMIS4.0 specifications, making it suitable for Ethernet, data center interconnect, enterprise, and InfiniBand networking applications.
The module features dual LC connectors, operates with a single +3.3V power supply, and supports a temperature range from 0°C to 70°C. With a maximum power consumption of 14.5W, it ensures efficient operation for high-speed optical networks. Its precise optical characteristics include a lane wavelength range from 1272.55nm to 1310.19nm, high extinction ratios, and reliable sensitivity. Designed for scalability and robust performance, the Arista Networks 740-082823 Compatible meets the stringent requirements of modern optical communication networks while being fully Conformidade com RoHS.
Todos os nossos transceptores ópticos são fornecidos com um garantia vitalícia.
The Arista Networks 740-082823 Compatible is a hot-pluggable QSFP-DD optical module designed for 10 km Ethernet applications. It provides 400 Gb/s aggregate bandwidth by multiplexing 8×50 Gb/s PAM4 electrical lanes into 8 optical LAN-WDM channels, combined into a dual LC interface. On the receiver side, the module de-multiplexes the optical input into 8 channels and converts them to 50 Gb/s PAM4 electrical outputs. Host-based FEC is required to support 10 km transmission. The module operates on a single +3.3 V supply, consumes up to 14.5 W, and integrates digital diagnostics monitoring (DDM) with CMIS 4.0 management.
Principais especificações
- Fator de forma / normas: QSFP-DD MSA; IEEE 802.3bs 400GBASE-LR8; CMIS 4.0.
- Data rate: 400 Gb/s (8×50 Gb/s PAM4 lanes).
- Alcance: Up to 10 km on G.652 SMF (with FEC).
- Optical wavelengths (LAN-WDM grid): 1273–1310 nm across 8 channels.
- Conector: Dual LC.
- Consumo de energia: ≤ 14.5 W (typ. 4.39 A @ 3.3 V).
- Tensão de alimentação: 3.13-3.47 V.
- Temperatura da caixa de operação: 0 °C a 70 °C.
- Diagnóstico: DDM with CMIS 4.0 management interface.
- Conformidade: IEEE 802.3bs, QSFP-DD MSA, RoHS.
Caraterísticas ópticas (por pista, exceto quando indicado)
| Parâmetro | Valor |
|---|---|
| Wavelengths | 1272.55–1310.19 nm (8 lanes) |
| TX avg launch power | −2.8 to +5.3 dBm |
| Potência total de lançamento | ≤ +13 dBm |
| OMA (per lane) | 0.2 to +5.7 dBm |
| Rácio de extinção | ≥ 3,5 dB |
| TDECQ | ≤ 3.3 dB |
| RX avg input power | −9.1 to +5.1 dBm |
| RX sensitivity (OMA) | ≤ −6.5 dBm |
| Stressed RX sensitivity | ≤ −4.3 dBm |
| RX damage threshold | ≤ +6.3 dBm |
| SMSR | ≥ 30 dB |
| LOS assert / de-assert | −20 / −10 dBm |