Aruba 100G QSFP28 ER4 – QSFP28 ER4 Optical Transceiver

About Aruba 100G QSFP28 ER4 Optical Transceiver in Bangladesh

The Aruba 100G QSFP28 ER4-class optical transceiver is a high-performance 100Gbps solution designed for long-distance Ethernet connectivity over single-mode fiber. HPE Aruba's current documented product is the Aruba 100G QSFP28 LC ER4L 40km SMF Transceiver, product number JL743A.

The ER4L architecture uses four wavelength-multiplexed optical lanes operating in the 1310nm-class wavelength region. Each optical lane carries approximately 25Gbps, providing an aggregate 100Gbps Ethernet connection through the QSFP28 form factor.

The Aruba JL743A uses 9/125µm single-mode fiber and a duplex LC UPC optical connector. HPE Aruba specifies up to 30km without Forward Error Correction (FEC), while the maximum 40km transmission distance requires FEC on both ends of the engineered link.

This long-reach optical architecture makes the transceiver suitable for data center interconnects, enterprise backbone networks, campus connectivity, long-distance switch-to-switch links, network aggregation, and other 100GbE deployments requiring significantly greater reach than SR4 or LR4 optics.

Aruba 100G QSFP28 ER4 Optical Transceiver Specifications & Overview

Overview

The Aruba 100G QSFP28 ER4-class optical transceiver provides 100Gbps Ethernet connectivity through a compact QSFP28 interface. It is designed for long-distance single-mode fiber links where conventional 100G SR4 and LR4 optics cannot provide sufficient reach.

The JL743A uses four wavelength-multiplexed optical channels in the 1310nm-class range. The four channels are combined within the transceiver and transported over a duplex single-mode fiber connection.

HPE Aruba specifies four optical wavelength ranges: approximately 1294.53–1296.59nm, 1299.02–1301.09nm, 1303.54–1305.63nm, and 1308.09–1310.19nm. The module uses a duplex LC UPC connector and 9/125µm single-mode fiber.

The published transmission distance is 30km without FEC. A maximum distance of 40km requires Forward Error Correction on both ends of the engineered link. Appropriate link engineering, optical budget, attenuation, connectors, and FEC configuration must therefore be considered before deployment.

HPE Aruba specifies Digital Optical Monitoring (DOM) for the JL743A. DOM can provide supported host equipment with monitoring information for relevant optical operating parameters.

Buy Aruba 100G QSFP28 ER4 Optical Transceiver in Bangladesh

Purchase the Aruba 100G QSFP28 ER4/ER4L Optical Transceiver from Datacom Technologies (BD). We supply Aruba networking equipment, QSFP28 and QSFP-DD optical transceivers, Ethernet switches, routers, servers, storage, fiber connectivity products, and data center infrastructure with competitive pricing, technical consultation, deployment assistance, and nationwide delivery throughout Bangladesh.

Compatibility

• Aruba Networking platforms supporting JL743A
• Compatible Aruba 100GbE QSFP28 ports
• Aruba 6300 Series with supported QSFP28 configurations
• Aruba 8100 Series with supported QSFP28 interfaces
• Aruba 8325 Series with supported 100G ports
• Aruba 8360 Series with supported 100G ports
• Aruba 8400 Series with supported QSFP28 modules
• Compatible 100GbE networking platforms supporting ER4L optics
• 9/125µm Single-Mode Fiber infrastructure
• Duplex LC UPC fiber cabling

Compatibility varies by switch model and software version. HPE Aruba's transceiver documentation should be checked for the exact platform, minimum software release, port configuration, and supported optics before installation.

Applications

• 100GbE Data Center Interconnect
• Long-Distance Switch-to-Switch Connectivity
• Enterprise Network Backbone
• Campus Network Backbone
• Network Aggregation
• Long-Reach Leaf-to-Spine Connectivity
• Cloud Infrastructure
• High-Performance Computing
• AI and GPU Networking
• Inter-Building Fiber Connectivity
• 30km to 40km Single-Mode Fiber Links

Benefits

• 100Gbps high-speed Ethernet connectivity
• Compact QSFP28 form factor
• Four wavelength-multiplexed optical lanes
• 1310nm-class optical transmission
• 9/125µm single-mode fiber support
• Duplex LC UPC optical interface
• Up to 30km without FEC
• Up to 40km with FEC
• Digital Optical Monitoring support
• Ideal for long-distance 100GbE networking

Why Buy from Datacom Technologies (BD)?

Datacom Technologies (BD) supplies enterprise networking and data center products in Bangladesh, including Aruba networking equipment, QSFP28 optical transceivers, Ethernet switches, routers, servers, storage, and fiber connectivity solutions. Customers can get competitive pricing, technical consultation, deployment assistance, and after-sales support.

• Call/WhatsApp: +8801748173213
• Email: sales@datacom.com.bd
• 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 data rate of the Aruba 100G ER4L?
The JL743A provides an aggregate 100Gbps Ethernet data rate.

Q2: What is the official Aruba product number?
The current Aruba product number for the ER4L implementation is JL743A.

Q3: What does ER4 mean?
ER4 refers to an extended-reach four-channel optical architecture. The Aruba JL743A uses four wavelength-multiplexed optical lanes to provide 100Gbps connectivity.

Q4: What type of fiber does the Aruba ER4L use?
The JL743A is designed for 9/125µm single-mode fiber.

Q5: What wavelengths does the Aruba 100G ER4L use?
The four optical lanes operate across wavelength ranges of approximately 1294.53–1296.59nm, 1299.02–1301.09nm, 1303.54–1305.63nm, and 1308.09–1310.19nm.

Q6: What is the maximum reach?
HPE Aruba specifies 30km without FEC and up to 40km when FEC is enabled on both ends of the engineered link.

Q7: What connector does the JL743A use?
The module uses a duplex LC UPC optical connector.

Q8: Does the Aruba ER4L support DOM?
Yes. HPE Aruba specifies Digital Optical Monitoring support for JL743A.

Q9: What is the difference between 100G LR4 and 100G ER4L?
Both use four wavelength-multiplexed optical channels over single-mode fiber, but LR4 is designed for 10km-class links, while Aruba ER4L is designed for much longer links—30km without FEC and up to 40km with FEC.

Q10: What is the difference between ER4 and ER4L?
The terminology can vary between vendors and generations. HPE Aruba's current product is explicitly named ER4L, JL743A. For Aruba deployments, JL743A should be treated as the official ER4L product reference rather than assuming a separate Aruba ER4 SKU.

Q11: Is FEC required for the full 40km distance?
Yes. HPE Aruba specifies that the 40km maximum requires Forward Error Correction on both ends of the engineered link. Without FEC, the specified distance is 30km.

Q12: Is the Aruba ER4L suitable for data center interconnects?
Yes. Its extended single-mode fiber reach makes it suitable for long-distance data center interconnects, enterprise backbone links, campus networks, and other high-bandwidth applications within the optical budget.

Q13: Can the JL743A work in any QSFP28 port?
No. The host platform must support JL743A, the required software version, optical coding, port configuration, and power requirements.

Q14: Where can I buy the Aruba 100G QSFP28 ER4/ER4L in Bangladesh?
You can contact Datacom Technologies (BD) for Aruba optical transceivers, networking equipment, and data center solutions with competitive pricing, technical consultation, and nationwide delivery.