100G QSFP28 CWDM4 LR4 10KM丨C-LIGHT

100G QSFP28 CWDM4 10KM Transceiver is a single-mode fiber optic module compliant with the QSFP28 MSA, CWDM4 MSA, and IEEE 802.3bm standards. It delivers 100Gbps data transmission via 4×25G NRZ channels over a maximum distance of 10km using CWDM technology with central wavelengths at 1270nm, 1290nm, 1310nm, and 1330nm.

Product Features:

100G-QSFP28-CWDM4-LR4-10KM ●Hot-pluggable QSFP28 form factor

●Supports 103.1Gb/s aggregate bit rate

●Power dissipation < 3.5W

●RoHS-6 compliant

●Commercial case temperature range of 0°C to 70°C

●Single 3.3V power supply

●Maximum link length of 10km on Single Mode Fiber (SMF)

●4x26Gb/s CWDM Transmitter: 4 channel 1270,1290,1310,1330nm DFB laser

●4x26G retimed electrical interface

●Duplex LC receptacles

●I2C management interface

Applications

●Data Center Interconnect (DCI)

●Enterprise Core and Aggregation Networks

●High-Performance Computing (HPC) and InfiniBand EDR Interconnects

●Metropolitan Network Backbones and 5G Fronthaul/Midhaul

●Cloud Service Provider (CSP) Infrastructure

Data Sheet

QSFP28-100GBASE-CWDM4-10KM.pdf

100G QSFP28 CWDM4 LR4 10KM Transceiver FAQ

Q1: What is a 100G QSFP28 CWDM4 LR4 10KM transceiver?

A 100G QSFP28 CWDM4 LR4 10KM transceiver is a hot-pluggable optical module designed for 100GbE transmission over single-mode fiber. It uses CWDM4 technology to deliver reliable 100Gbps connectivity up to 10km.

Key features include:

100Gbps data rate
CWDM4 optical technology
Up to 10km over SMF
Duplex LC connector
QSFP28 hot-pluggable form factor

It is ideal for DCI, enterprise networks, cloud computing, HPC, and metro networks.

Q2: How does a 100G QSFP28 CWDM4 LR4 transceiver work?

The module converts electrical signals into 4×25G NRZ optical channels using four CWDM wavelengths (1270nm, 1290nm, 1310nm, and 1330nm). The multiplexed optical signal is transmitted over a duplex single-mode fiber pair for efficient 100G communication.

Q3: What are the key features of the C-LIGHT 100G QSFP28 CWDM4 LR4 10KM transceiver?

The C-LIGHT module is designed for reliable 100G optical networking.

Key features include:

100Gbps Ethernet transmission
Up to 10km over SMF
4×25G DFB CWDM transmitters
Duplex LC interface
QSFP28 MSA compliant
I²C management interface
Power consumption <3.5W

These features provide stable, low-power optical connectivity for modern networks.

Q4: What are the advantages of a 100G QSFP28 CWDM4 LR4 transceiver?

Compared with shorter-reach multimode modules, it offers:

Up to 10km transmission
Low power consumption
Duplex LC connectivity
High reliability
Cost-effective deployment

It is an efficient solution for medium-distance 100G optical links.

Q5: Where are 100G QSFP28 CWDM4 LR4 transceivers commonly used?

These modules are widely deployed in high-speed optical networks.

Typical applications include:

Data Center Interconnect (DCI)
Enterprise core networks
High-Performance Computing (HPC)
Cloud infrastructure
Metro backbone networks
5G fronthaul and midhaul

These applications require reliable 100Gbps transmission over distances up to 10km.

Q6: Why choose a 100G QSFP28 CWDM4 LR4 instead of a 100G SR4 module?

A 100G CWDM4 LR4 module supports single-mode fiber transmission up to 10km, while a 100G SR4 module is designed for multimode fiber with a reach of up to 100m.

Its advantages include: