Aruba JL738A | 10G SFP+ Transceiver, Single-Mode, BiDi 10km, LC

Q: What is a BiDi transceiver and how does it work?
A: BiDi (Bidirectional) transceivers transmit and receive data over a single fiber strand using two different wavelengths. The JL738A uses 1330nm for transmission and 1270nm for reception, eliminating the need for fiber pairs and reducing cabling costs by 50%. It must be paired with a compatible uplink transceiver (such as JL737A) at the opposite end.

Q: What is the difference between uplink and downlink BiDi transceivers?
A: BiDi transceivers are sold in matched pairs with opposite TX/RX wavelengths. The JL738A downlink transceiver transmits at 1330nm and receives at 1270nm, while the uplink counterpart (JL737A) transmits at 1270nm and receives at 1330nm. Both ends must use opposite configurations to communicate successfully.

Q: Which HPE and Aruba devices support this transceiver?
A: The JL738A is compatible with HPE Aruba Networking switches, routers, and other devices featuring standard SFP+ slots. This includes FlexFabric, Altoline, and Comware-based platforms. Always verify compatibility with your specific device model before deployment.

Q: Can I use this transceiver with multi-mode fiber?
A: No, the JL738A is designed exclusively for single-mode fiber (SMF) with 9/125 µm core diameter. It will not operate correctly with multi-mode fiber (MMF). For multi-mode applications, consider transceivers specifically designed for OM3 or OM4 fiber types.

Q: What are the benefits of using BiDi transceivers over traditional transceivers?
A: BiDi transceivers reduce fiber infrastructure costs by 50% since only one fiber strand is needed instead of two. This simplifies cabling in dense environments, reduces fiber patch panel requirements, and lowers overall deployment costs while maintaining full 10 Gigabit performance over single-mode fiber links up to 10km.