Fully compatible Carritech alternative
Carritech Optics can offer CT-QSFP28-CWDM4 as a fully compatible, high-quality alternative to Brocade 100G-QSFP28-CWDM4-2KM. This Carritech alternative is matched against the key optical specifications and can be programmed and tested for your network requirements.
Carritech part number: CT-QSFP28-CWDM4
100G QSFP28 CWDM4 2KM
Compact QSFP28 CWDM4 transceiver for 100G Ethernet over single-mode fiber up to 2 km, using four 25G wavelengths (1271–1331 nm) with duplex LC and < 3.5 W power. Host FEC is required for full 2 km reach.
Quality assured Tested, compliant and backed by lifetime warranty.
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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.
Review the technical specifications, applications, features, delivery information and warranty coverage for this product.
The 100Gbps QSFP28 CWDM4 Optical Transceiver is a high-performance module designed for short-range communication over single-mode fiber (SMF) up to 2 kilometers. Compliant with QSFP28 MSA and 100G CWDM4 MSA standards, this transceiver operates with a 4-lane MUX/DEMUX design that consolidates four 25Gbps channels into a 100Gbps aggregate output. Each of the four CWDM channels utilizes specific wavelengths—1271nm, 1291nm, 1311nm, and 1331nm—to ensure robust and efficient data transmission. Equipped with a duplex LC connector, the module supports host Forward Error Correction (FEC) for maintaining signal integrity across extended distances.
Operating on a single +3.3V power supply with a power consumption of less than 3.5W, the transceiver is energy-efficient and reliable within a temperature range of 0°C to 70°C. It integrates advanced digital diagnostic monitoring to provide real-time feedback on operational parameters such as temperature, voltage, bias current, and optical power. The robust design includes ESD protection and laser safety compliance, making it suitable for applications like data center interconnects, 100G Ethernet, and enterprise networking, where high-speed and reliable performance are critical.
Designed to the QSFP28 MSA and 100G CWDM4 MSA Rev 1.1, this module multiplexes four 25.78125 Gb/s electrical lanes into four CWDM optical lanes and combines them onto a single SMF link; the receiver de-multiplexes and outputs four electrical lanes. It operates from a single 3.3 V supply, supports digital diagnostics (temperature, voltage, per-lane TX/RX power and bias), and is specified for 0 °C to 70 °C case temperature. Interface is duplex LC for optics and 38-pin QSFP28 edge connector for electrical.
Form factor / standard: QSFP28; 100G CWDM4 MSA compliant; 4×25G OIF CEI-28G-VSR electrical interface.
Velocidad de datos: 103.1 Gb/s aggregate (4×25.78125 Gb/s).
Alcanza: Up to 2 km over G.652 SMF with host FEC required.
Optical wavelengths (CWDM grid): 1271, 1291, 1311, 1331 nm.
Conector: Duplex LC.
Power / supply: < 3.5 W max; 3.3 V (VccTx/VccRx/Vcc1).
Temperatura de funcionamiento de la carcasa 0 °C a 70 °C.
Management & controls: 2-wire (SCL/SDA), ModSelL, ResetL, LPMode, ModPrsL, IntL.
Standards & compliance: ITU-T G.694.2 wavelength grid; RoHS.
Safety/ESD: Laser Class 1 (EN 60825-1:2014; 21 CFR 1040.10/1040.11); ESD 1 kV (HS pins) / 2 kV (others), HBM.
| Parámetro | Especificación |
|---|---|
| TX avg launch power (per lane) | −6.5 to +2.5 dBm |
| TX OMA (per lane) | −4 to +2.5 dBm |
| Relación de extinción | ≥ 3,5 dB |
| TDP (per lane) | ≤ 3.0 dB |
| Sensibilidad RX (OMA) | ≤ −10 dBm (BER = 5×10⁻⁵) |
| Sensibilidad RX estresada (OMA) | ≤ −7.3 dBm |
| RX overload (damage per lane) | ≥ +3.5 dBm |
| Total avg TX/RX power (module) | ≤ +8.5 dBm |
| RIN | ≤ −130 dB/Hz (12 dB reflection) |
| Optical return loss tolerance | 20 dB |
| Receiver reflectance | ≤ −26 dB |
Electrical performance: CEI-28G-VSR compliant AC characteristics; typical supply current ~1.06 A; Vcc 3.135–3.465 V; control input high 2.0 V to Vcc, low 0–0.8 V.
Absolute maximum ratings (selection): storage −40 to +85 °C; case 0 to +70 °C; Vcc −0.5 to 3.6 V; RH 0–85% non-condensing. Operating beyond absolute maximums may cause permanent damage.
Digital diagnostics (DMI) accuracy: temperature ±3 °C; supply voltage ±0.1 V; per-lane TX/RX power ±2 dB; bias current ±10%.
Carritech Optics can offer a fully compatible, high-quality alternative to Brocade 100G-QSFP28-CWDM4-2KM.
Carritech part number: CT-QSFP28-CWDM4
At Carritech, we pride ourselves on our exceptional service and commitment to meeting our customers’ needs. Our extensive range of SFP transceivers, including the 100G-QSFP28-CWDM4-2KM, 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.
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