SFPDD XGSPON/GPON OLT 1577T/1270R 40 C++

The SFP-DD XGS-PON / GPON Combo OLT Transceiver (C++ Class) is a high-power, carrier-grade optical module designed for long-reach FTTH and access networks requiring extended distance and high split ratios. Supporting simultaneous XGS-PON and GPON operation on a single fiber, this module enables smooth migration from GPON to XGS-PON while maintaining full backward compatibility. With a 60 km reach, high launch power, and ultra-sensitive receivers, it is ideal for rural deployments, large PON domains, and high-loss ODNs.

The transceiver is built in an SFP-DD form factor and qualified for industrial temperature operation, making it suitable for central offices, remote nodes, and outdoor cabinets.

• Single-fiber bidirectional transmission

• XGS-PON / XG-PON / GPON Combo OLT support

• C++ optical class, up to 40 km reach

• SFP-DD form factor with SC/UPC connector

• Hot-pluggable

• Industrial temperature range: –40 °C to +85 °C

• High-power downstream transmitters (EML / DFB)

• High-sensitivity APD receivers

• Digital Diagnostic Monitoring (DDM)

• RX_SD and RX_LOS indications for XGS-PON and GPON

• Low EMI and excellent ESD protection

• RoHS-10 compliant

• XGS-PON – ITU-T G.9807.1

• XG-PON – ITU-T G.987.2

• GPON – ITU-T G.984.2

• SFF-8472 Digital Diagnostics

• FCC 47 CFR Part 15, Class B

XGS-PON Transmitter (Downstream)

• Wavelength: 1577 nm (EML laser)

• Data rate: 9.953 Gbps

• Launch power: +7 to +10 dBm

• Extinction ratio: = 8.2 dB

• Transmission distance: up to 60 km over SMF

• Wavelength: 1490 nm (DFB laser)

• Data rate: 2.488 Gbps

• Launch power: +5 to +9 dBm

• Extinction ratio: = 8.2 dB

• Transmission distance: up to 60 km over SMF

• Wavelength: 1260–1280 nm

• Sensitivity: down to –31 dBm

• Saturation power: –10 dBm

• Maximum input power: 0 dBm

• Burst-mode operation with fast recovery

• Wavelength: 1260–1280 nm

• Sensitivity: down to –32.5 dBm

• Saturation power: –12 dBm

• Burst-mode receiver

• Wavelength: 1290–1330 nm

• Sensitivity: down to –34 dBm

• Saturation power: –14 dBm

• Maximum input power: +5 dBm

• Burst-mode receiver with RSSI support

• Supply voltage: 3.3 V

• Power consumption: = 3.5 W

• Operating current: up to 1100 mA

• Management interface: I²C (SFF-8472 compatible)

• Optimized burst-mode timing for OLT operation

Monitors in real time:

• Module temperature

• Supply voltage

• Laser bias current (10G / 2.5G)

• TX optical power (XGS-PON & GPON)

• RX optical power (XGS-PON, XG-PON, GPON)

• Form factor: SFP-DD

• Optical connector: SC/UPC