Juniper 10GBASE-LR SFP+ Transceiver — 10km Single-Mode Fiber

The Juniper 740-140352 is a 10GBASE-LR SFP+ optical transceiver delivering 10GbE over single-mode fiber up to 10km at 1355nm via duplex LC connector — the numeric part number equivalent to SFPP-10G-LR-C, providing the same 10G SMF long-reach capability for Juniper platforms through Juniper's numeric ordering system.

Key Features

• 10GBASE-LR SFP+ for 10km 10GbE over OS1/OS2 SMF — numeric alternative to SFPP-10G-LR-C
• 1355nm wavelength for standard SMF infrastructure compatibility
• Duplex LC connector for standard SMF patch panel and structured cabling compatibility
• Juniper numeric part 740-140352 — fully interchangeable with SFPP-10G-LR-C
• DDM/DOM support for real-time optical health monitoring via Junos OS

Product Specifications

• Part Number: 740-140352
• Manufacturer: Juniper Networks
• Form Factor: SFP+
• Speed: 10GbE (10GBASE-LR)
• Wavelength: 1355nm
• Connector: Duplex LC
• Fiber Type: Single-Mode Fiber (SMF, OS1/OS2)

Transceiver & Interface Specifications

• Max Distance: 10km over OS1/OS2 SMF
• TX Power: -8.2 to +0.5 dBm
• RX Sensitivity: -14.4 dBm (min)
• Power Consumption: Typically 1.0W
• DDM/DOM: Yes
• Operating Temperature: 0°C to 70°C (commercial)

Use Cases

• Numeric part number procurement for 10GBASE-LR SFP+ capacity on Juniper platforms
• 10GbE SMF inter-switch and uplink connections up to 10km in Juniper EX/QFX deployments
• Campus inter-building 10G SMF links over existing OS1/OS2 infrastructure
• Service provider 10G access and aggregation links on Juniper MX or SRX platforms

Compatibility

• Compatible with Juniper EX, QFX, MX, PTX, and SRX platforms with SFP+ 10G ports
• Requires OS1/OS2 single-mode fiber with duplex LC connectors
• Fully interchangeable with SFPP-10G-LR-C on supported Juniper platforms
• IEEE 802.3ae 10GBASE-LR compliant

Frequently Asked Questions

What is the difference between 740-140352 and SFPP-10G-LR-C?

Both are Juniper-genuine 10GBASE-LR SFP+ transceivers with identical optical specifications. The 740-140352 uses the numeric part number format, while SFPP-10G-LR-C uses the alphanumeric format. Both are fully interchangeable on supported Juniper platforms — select based on your ordering system's preferred format.

Is 1355nm the same as standard 1310nm for 10GBASE-LR?

The IEEE 10GBASE-LR standard specifies 1310nm, and 1355nm is within the acceptable operating wavelength range for 10GBASE-LR SMF transceivers. Both wavelengths are fully compatible with OS1/OS2 single-mode fiber and standard 10GBASE-LR receiver sensitivity specifications.

Does the 740-140352 support DDM monitoring?

Yes — DDM/DOM is supported, enabling Junos OS to monitor TX/RX optical power, temperature, voltage, and bias current in real time via CLI and SNMP for proactive transceiver health management.

The Juniper 740-140352 provides numeric part number access to Juniper's 10GBASE-LR SFP+ capability — delivering 10km OS1/OS2 SMF reach, DDM monitoring, and full Juniper platform compatibility as the numeric equivalent to SFPP-10G-LR-C for long-reach 10G SMF deployments across EX, QFX, MX, PTX, and SRX platforms.