Spécifications
The CT-400G-QDD-LR4 from Carritech Optics 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.
Caractéristiques principales
- Facteur de forme / normes : QSFP-DD MSA; IEEE 802.3cu 400GBASE-LR4; CMIS rev4.0 compliant.
- Débit de données : 400 Gb/s (8×53.125 Gb/s PAM4 lanes).
- Portée : Jusqu'à 10 km sur G.652 SMF (avec FEC).
- Optical wavelengths (CWDM4 grid): 1271, 1291, 1311, 1331 nm.
- Connecteur : Duplex LC.
- Consommation électrique : ~12 W (max 3.45 A @ 3.3 V).
- Tension d'alimentation : 3.13-3.47 V.
- Température de fonctionnement du boîtier 0 °C à 70 °C.
- Diagnostics : I²C interface with integrated DDM (temperature, voltage, bias, TX/RX power).
- Conformité : IEEE 802.3cu, QSFP-DD MSA, EU 2015/863/EU RoHS.
Caractéristiques optiques (par voie, sauf indication contraire)
| Paramètres | Valeur |
|---|---|
| Lane signaling rate | 106.25 Gb/s PAM4 |
| Longueurs d'onde | 1271, 1291, 1311, 1331 nm |
| Puissance de lancement moyenne du TX | −2.7 to +5.1 dBm |
| OMAouter per lane | 0.3 to +4.4 dBm |
| Taux d'extinction | ≥ 3,5 dB |
| TDECQ | ≤ 3.9 dB |
| Puissance d'entrée moyenne RX | −9 to +5.1 dBm |
| RX sensitivity (OMAouter) | ≤ −6.8 dBm |
| Seuil de dommages RX | ≤ +6.1 dBm |
| SMSR | ≥ 30 dB |