JNP-SFP-10G-BX10D-BCC | Juniper Compatible 10GB BiDi Transceiver - 10km (10GBASE-BX-D)

Q: Will this work in place of the Juniper JNP-SFP-10G-BX10D?
A: Yes. This transceiver is a plug-and-play replacement for the JNP-SFP-10G-BX10D. It matches the SFP+ form factor, 10Gbps data rate, 1330nm Tx / 1270nm Rx wavelength pair, and 10GBASE-BX-D standard, ensuring transparent operation in any Juniper platform that supports the original part number.

Q: Which Juniper platforms support this transceiver?
A: This transceiver works in any Juniper switch, router, or interface module with a 10G SFP+ slot that supports 10GBASE-BX operation. This includes platforms across the EX, QFX, MX, and PTX families. Verify that your specific platform and software release support BiDi optics by checking the Juniper Hardware Compatibility Tool or your platform datasheet.

Q: What is the -D designation and why does wavelength pairing matter?
A: The -D suffix indicates this is the downstream variant, transmitting at 1330nm and receiving at 1270nm. BiDi transceivers use WDM to send and receive on the same fibre, so the wavelengths at each end must be reversed. This -D module must be paired with a -U upstream module (1270nm Tx / 1330nm Rx) at the opposite end. Mismatched wavelengths will result in no link.

Q: What fibre type and loss budget does this transceiver require?
A: This transceiver requires OS2 single-mode fibre (G.652 or better). The 10km reach specification assumes a maximum link loss budget of approximately 6.2 dB, which includes fibre attenuation, splice loss, and connector loss. Actual reach depends on fibre quality, number of splices, and patch cord condition. For spans approaching 10km, perform an optical loss test to confirm the link budget.

Q: Can I use this transceiver in a 1G or 2.5G application?
A: No. This is a dedicated 10G transceiver designed for 10GBASE-BX-D operation at 10.3125 Gbps line rate. It does not support rate adaptation to 1G or 2.5G. For multi-rate BiDi links, select a transceiver explicitly rated for the required speeds, or use separate transceivers for each data rate.