SFP-DD XGS-PON / GPON Combo OLT Transceiver – B+ Class (Industrial Temperature)
The SFP-DD XGS-PON / GPON Combo OLT Transceiver (B+ Class) is a carrier-grade, single-fiber bidirectional optical module designed for modern fiber access networks. It enables simultaneous support of XGS-PON and GPON on the same OLT platform, making it ideal for network migration, coexistence scenarios, and long-term FTTH planning. Built in a compact SFP-DD form factor and supporting an industrial temperature range, this transceiver is well suited for deployment in central offices, outdoor cabinets, and demanding operating environments.
By combining high performance, flexibility, and reliability, this module allows operators to upgrade access networks efficiently while protecting existing GPON investments.
Key Features
• Single-fiber bidirectional transmission
• Supports XGS-PON / XG-PON / GPON Combo OLT operation
• SFP-DD form factor with SC/UPC connector
• Hot-pluggable for easy installation and replacement
• Industrial temperature range: –40 °C to +85 °C
• Digital Diagnostic Monitoring (DDM)
• Low EMI and excellent ESD protection
• RoHS-10 compliant
Supported PON Standards
• XGS-PON – ITU-T G.9807.1
• XG-PON – ITU-T G.987.2
• GPON – ITU-T G.984.2
Optical Interface & Performance
XGS-PON Transmitter (Downstream)
• Wavelength: 1577 nm (EML laser)
• Data rate: 9.953 Gbps
• Launch power: +1 to +4 dBm
• Extinction ratio: = 8.2 dB
• Reach: up to 20 km over single-mode fiber
GPON Transmitter (Downstream)
• Wavelength: 1490 nm (DFB laser)
• Data rate: 2.488 Gbps
• Launch power: +1.5 to +5 dBm
• Extinction ratio: = 8.2 dB
• Reach: up to 20 km over single-mode fiber
Receiver Characteristics
XGS-PON / XG-PON Receiver (Upstream)
• Wavelength: 1270 nm
• Sensitivity: down to –26.5 dBm
• Maximum input power: 0 dBm
• Burst-mode operation with fast recovery
GPON Receiver (Upstream)
• Wavelength: 1310 nm
• Sensitivity: down to –28 dBm
• Maximum input power: +5 dBm
• Burst-mode receiver with RSSI support
Electrical & Power Specifications
• Supply voltage: 3.3 V
• Power consumption: = 3.3 W
• Management interface: I²C (SFF-8472 compatible)
• RX/TX burst-mode timing optimized for OLT operation
Digital Diagnostic Monitoring (DDM)
• Module temperature
• Supply voltage
• Laser bias current
• TX optical power
• RX optical power
• Separate memory pages for XGS-PON and GPON
Mechanical & Environmental Specifications
• Form factor: SFP-DD
• Optical connector: SC/UPC
• Operating temperature: –40 °C to +85 °C
• Designed for carrier-grade OLT systems