Walsun 100G QSFP28 ZR4+ Transceiver Module

About Walsun 100G QSFP28 ZR4+ 80km Optical Transceiver Module in Bangladesh

The Walsun 100G QSFP28 ZR4+ is a high-performance 100Gbps optical transceiver designed for ultra-long-distance Ethernet and telecom connectivity. It supports transmission distances of up to 80km over single-mode fiber and uses four LAN-WDM optical channels multiplexed through a duplex LC interface.

Walsun officially lists the 100G QSFP28 ZR4+ as supporting Ethernet 100GBASE applications and line rates from 103.125Gb/s to 112Gb/s OTU4. The module uses a QSFP28 MSA-compliant package, duplex LC optical interface, digital monitoring and a hot-pluggable 38-pin electrical interface. Walsun specifies maximum power consumption of 5.5W. Walsun official product page

The ZR4+ family is intended for long-haul 100G links where standard LR4 or ER4 optics do not provide sufficient reach. Walsun's published product information provides variants for 10km, 40km, 80km and 100km, with the 80km ZR4+ variant using an EML transmitter and SOA+PIN receiver. Walsun specifications

Walsun 100G QSFP28 ZR4+ Specifications & Features

Overview

The Walsun 100G QSFP28 ZR4+ provides 100Gbps optical connectivity across distances of up to 80km using single-mode fiber. Its long-reach architecture makes it suitable for data center interconnects, metro networks, telecom infrastructure, enterprise backbone links and high-performance computing environments.

The module combines four optical channels using LAN-WDM technology. The four wavelengths are multiplexed into a single duplex LC fiber connection, allowing high-capacity 100G traffic to travel across a long-distance single-mode fiber link.

Buy Walsun 100G QSFP28 ZR4+ in Bangladesh

Purchase the Walsun 100G QSFP28 ZR4+ 80km Optical Transceiver Module from Datacom Technologies (BD). We supply 100G QSFP28 transceivers, Walsun optical modules, long-distance fiber optics, data center interconnect solutions and enterprise networking products throughout Bangladesh.

Key Features

• 100Gbps high-speed optical connectivity
• QSFP28 form factor
• Up to 80km reach
• Single-mode fiber operation
• Four-channel LAN-WDM architecture
• 1295nm / 1300nm / 1304nm / 1309nm wavelengths
• EML optical transmitter
• SOA + PIN receiver
• Duplex LC connector
• Digital Diagnostic Monitoring
• QSFP28 MSA compliant
• Hot-pluggable electrical interface
• Maximum 5.5W power consumption
• Supports 100GBASE Ethernet
• Supports OTU4 line rates

100G QSFP28 ZR4+ Long-Distance Optical Technology

ZR4+ is designed for long-distance 100G optical transmission. Compared with conventional LR4 modules, which are generally intended for approximately 10km links, ZR4+ provides substantially greater optical reach through higher-power transmit optics and a highly sensitive receiver architecture.

Walsun's ZR4+ platform includes long-distance variants up to 80km and beyond. The 80km version is designed for high-capacity single-mode fiber transmission and is particularly suitable for inter-site and metro-network deployments. Walsun official specifications

80km Single-Mode Fiber Reach

The Walsun 100G QSFP28 ZR4+ 80km module is designed for transmission distances of up to 80km over compatible single-mode fiber.

This extended reach makes the module suitable for applications where conventional 100G LR4 optics are insufficient, including long-distance data center interconnection, metro backbone networks and telecom transport.

The actual achievable distance depends on the complete optical link budget, including fiber attenuation, connector losses, splice losses, dispersion and available system margin.

LAN-WDM Optical Architecture

The module uses four LAN-WDM optical channels around the 1310nm wavelength region. The published Walsun ZR4 specifications identify the four channels around 1295nm, 1300nm, 1304nm and 1309nm.

These four optical channels are multiplexed and transmitted through a duplex LC single-mode fiber interface.

EML Transmitter and SOA + PIN Receiver

The Walsun 80km ZR4+ variant uses an EML transmitter and SOA + PIN receiver. This optical architecture is designed to provide the higher launch power and receiver sensitivity required for extended-distance 100G transmission.

Walsun lists the 80km product variant HX4X-CL381C/I with EML transmission, SOA+PIN detection and a transmit-power range of approximately 2.0 to 4.5dBm. Walsun product specifications

Duplex LC Connectivity

The 100G QSFP28 ZR4+ uses a duplex LC optical interface. One fiber carries the transmit path while the other carries the receive path.

Duplex LC single-mode fiber is widely deployed in telecom, enterprise and data center optical infrastructure, making the module suitable for long-distance links using existing LC-based cabling.

Digital Diagnostic Monitoring

The module supports a digital monitoring interface. DDM/DOM information can provide valuable operational information from the optical transceiver when supported by the host networking platform.

Monitoring can assist network administrators with optical troubleshooting, link-health analysis and preventive maintenance.

100GBASE Ethernet and OTU4 Support

Walsun specifies the ZR4+ platform as compliant with Ethernet 100GBASE applications and supporting line rates from 103.125Gb/s to 112Gb/s OTU4. Walsun official product information

This makes the module suitable for both high-capacity Ethernet networking and compatible optical transport applications.

Commercial and Industrial Temperature Options

Walsun lists both commercial-temperature and industrial-temperature variants of the ZR4+ module. The available variants cover 0°C to 70°C and -40°C to 85°C case operating temperatures. Walsun specifications

When ordering, the required temperature grade should be confirmed because the exact suffix and ordering code can differ between commercial and industrial versions.

Data Center & Telecom Applications

• 100GbE data center interconnects
• Long-distance DCI
• Metro Ethernet networks
• Telecom backbone links
• Enterprise WAN connectivity
• High-capacity network backbones
• Campus core interconnection
• Cloud infrastructure
• High-performance computing networks
• Long-distance switch-to-switch connections
• Optical transport networks

100G ZR4+ vs 100G LR4

ZR4+ is intended for much longer optical links. If the required distance is only a few kilometers or up to approximately 10km, LR4 is generally a more economical choice. For extended 100G links approaching tens of kilometers, ZR4+ provides the required optical reach.

Compatibility

Walsun states that its QSFP28 modules can be supplied in versions compatible with mainstream networking brands including Cisco, Arista, Juniper, Brocade, Dell, Extreme, Huawei, H3C, Ciena, Mellanox and others. Walsun compatibility information

However, the exact host coding should always be specified when ordering. A physically compatible QSFP28 port does not necessarily guarantee that an OEM switch will accept every third-party optic.

Optical Link Budget

80km ZR4+ deployments require careful optical link-budget planning. The fiber route should be evaluated for attenuation, splice losses, connector losses and dispersion before deployment.

Walsun's published ZR4 specifications for the 80km variant identify transmit power around +2.0 to +4.5dBm and receiver sensitivity better than approximately -23dBm on its product-family table. A separate Walsun ZR4 product description gives more detailed 80km specifications, including receiver sensitivity below -27dBm for a related QSFP28-100G-ZR4 implementation. Therefore, the exact ordering code/datasheet should be used for final link-budget calculations. Walsun ZR4+ specifications Walsun ZR4 technical information

Installation Considerations

• Use compatible single-mode fiber.
• Use duplex LC connectors.
• Verify the complete 80km optical link budget.
• Check fiber attenuation and dispersion.
• Clean and inspect LC connectors before installation.
• Verify QSFP28 host compatibility.
• Specify the required OEM coding when ordering.
• Confirm commercial or industrial temperature requirements.
• Verify the exact ZR4+ ordering code for final optical specifications.

Benefits

• 100Gbps high-speed optical networking
• Up to 80km single-mode fiber reach
• Four-channel LAN-WDM architecture
• Duplex LC connectivity
• QSFP28 high-density form factor
• EML transmitter
• SOA + PIN receiver
• Digital diagnostic monitoring
• 100GBASE Ethernet support
• OTU4 support
• Commercial and industrial temperature options
• Suitable for long-distance DCI and telecom networks

Why Buy from Datacom Technologies (BD)?

Datacom Technologies (BD) supplies Walsun 100G optical transceivers, QSFP28 ZR4+ modules, long-distance fiber optics, data center interconnect products and enterprise networking solutions in Bangladesh. Customers can receive competitive pricing, technical consultation, compatibility guidance and nationwide delivery.

• Call/WhatsApp: +8801748173213
• Email: sales@datacomtechbd.com
• Alternative Email: datacomtechnologiesbd@gmail.com
• Office: Tropical Center, 218, Dr. Kudroti Khuda Road, New Elephant Road, Dhaka-1205, Bangladesh

Frequently Asked Questions (FAQ)

Q1: What is the Walsun 100G QSFP28 ZR4+?
It is a 100Gbps QSFP28 long-distance optical transceiver designed for up to 80km single-mode fiber links.

Q2: What is the maximum reach?
The ZR4+ 80km variant supports transmission distances of up to 80km over compatible single-mode fiber.

Q3: What wavelengths does it use?
The four LAN-WDM channels are centered around 1295nm, 1300nm, 1304nm and 1309nm.

Q4: What fiber does it require?
It is designed for single-mode fiber, with Walsun specifying G.652 fiber for its 80km ZR4 implementation.

Q5: What connector does it use?
The module uses a duplex LC optical connector.

Q6: Does it support DDM?
Yes. Walsun specifies support for digital monitoring.

Q7: What transmitter and receiver technology does it use?
The 80km ZR4+ variant uses an EML transmitter and SOA + PIN receiver.

Q8: What is the power consumption?
Walsun specifies maximum power consumption of 5.5W for the ZR4+ product family.

Q9: Is it compatible with Cisco, Juniper and Huawei switches?
Walsun offers compatible versions for major networking vendors, but the exact host coding should be confirmed before purchase.

Q10: What is the difference between ZR4+ and LR4?
Both use 100G QSFP28 and LAN-WDM technology, but LR4 is generally designed for approximately 10km while ZR4+ extends the optical reach to approximately 80km.

Q11: Is this module suitable for data center interconnection?
Yes. Its 80km reach makes it particularly suitable for long-distance data center interconnects, metro networks and telecom backbone links.

Q12: Where can I buy Walsun 100G QSFP28 ZR4+ in Bangladesh?
You can contact Datacom Technologies (BD) for Walsun 100G QSFP28 ZR4+ modules, long-distance optical transceivers and enterprise/data-center fiber networking solutions with nationwide delivery.