Detailed Specifications
HPE JL308 40 Gb/s QSFP+ LC BiDi Transceiver
Overview
The HPE JL308 is a 40 Gb/s QSFP+ bi-directional optical transceiver module designed for high-density, short-reach multimode fibre links in data centre networks. It uses a duplex LC connector and bi-directional signalling (20 Gb/s per fibre strand) to deliver full-duplex 40 Gb/s over a standard duplex multimode fibre pair, avoiding the need for MPO-style cabling. The module supports link distances up to 150 m on OM4 fibre (approximately 100 m on OM3) and integrates Digital Optical Monitoring (DOM) for real-time diagnostics of voltage, temperature and optical power. It is typically used in spine/leaf or aggregation layers of enterprise or cloud networks, and is compatible with HPE/Aruba switching platforms supporting QSFP+ optics.
Key Features
40 Gb/s QSFP+ BiDi module using duplex LC MM fibre
Up to 150 m reach on OM4 multimode fibre (~100 m on OM3)
Dual-wavelength VCSEL bi-directional operation (850 nm/900 nm)
Digital Optical Monitoring (DOM) for link diagnostics
+3.3 V low-power QSFP+ design compliant with QSFP+ MSA
Specifications
| Specification | Value |
|---|
| Brand | Hewlett Packard Enterprise (HPE) |
| Part Number | JL308-61001 |
| Product Type | 40 Gb/s QSFP+ LC BiDi Transceiver |
| Data Transfer Rate | 40 Gb/s total (2 × 20 Gb/s Bi-Di channels) |
| Fibre Type | Multimode Fibre (MMF) |
| Connector Type | Duplex LC |
| Reach (Maximum) | Up to 150 m on OM4, ~100 m on OM3 |
| Wavelengths | 850 nm transmit / 900 nm receive (Bi-Di) |
| Digital Optical Monitoring | Supported |
| Host Interface | QSFP+ electrical interface |
| Power Supply Voltage | +3.3 V |
| Operating Temperature | 0 °C to 70 °C |
| Compliance Standards | QSFP+ MSA, 40GBASE-SR-BD, RoHS |
| Duplex Operation | Full-duplex 40 Gb/s over 2 fibre strands |
| Fibre Cabling Benefit | Supports duplex LC rather than MPO |
| Typical Use Case | Data-centre spine/leaf aggregation links |
