EX-SFP-GE40KT15R13-BCC | Juniper Compatible 1GB Single-Mode 40km (1000BASE-BX40-D) Industrial

Q: Will this work in place of the Juniper EX-SFP-GE40KT15R13?
A: Yes. This transceiver is built to the 1000BASE-BX40-D standard with SFP form factor, 1.25 Gbps data rate, and the correct 1550nm Tx / 1310nm Rx wavelength pairing. It is plug-and-play compatible with Juniper platforms that support the EX-SFP-GE40KT15R13 and operates across the full industrial temperature range.

Q: Which Juniper platforms support this transceiver?
A: This module works in Juniper switches, routers, and other equipment with SFP ports that support 1000BASE-BX BiDi optics. Common applications include EX series switches and devices requiring 1GbE connectivity over single-strand fibre. Verify that your platform supports BiDi transceivers and operates within the gigabit SFP electrical interface specification.

Q: What is the difference between the 1000BASE-BX40-D and 1000BASE-BX40-U variants?
A: The D (downstream) and U (upstream) designations define wavelength pairing. This EX-SFP-GE40KT15R13-BCC is the D variant: it transmits at 1550nm and receives at 1310nm. It must be paired with a U variant (such as the EX-SFP-GE40KT13R15) which transmits at 1310nm and receives at 1550nm. Two D or two U modules cannot communicate with each other.

Q: What fibre type and quality is required for reliable 40km operation?
A: This transceiver requires OS2-rated single-mode fibre (9/125µm) with a minimum optical budget of 17 dB. Actual reach depends on fibre attenuation (typically 0.35 dB/km at 1550nm and 0.40 dB/km at 1310nm), splice and connector losses, and margin for ageing. Use low-loss connectors, maintain clean end faces, and avoid excessive bends to preserve link budget over long distances.

Q: Can I deploy this transceiver in outdoor or uncontrolled environments?
A: Yes. The industrial temperature rating of -40°C to 85°C qualifies this module for outdoor cabinets, roadside installations, factory floors, mining sites, and other locations where ambient temperature fluctuates outside the 0°C to 70°C commercial range. Ensure the host equipment also supports industrial temperature operation and that the enclosure provides adequate ventilation for sustained high-temperature conditions.