Foundry IGF-17311J-FN 10GBASE-LR XFP

The Foundry IGF-17311J-FN is a hot-pluggable 10 Gigabit XFP optical transceiver module compliant with the XFP Multi-Source Agreement (MSA). It is specifically designed for 10GBASE-LR applications, operating at a nominal wavelength of 1310 nm using a distributed feedback (DFB) laser transmitter and a PIN photodiode receiver. The module supports reliable data transmission up to 10 km over single-mode fiber (ITU-T G.652).This transceiver accommodates data rates from 9.95 Gb/s to 11.1 Gb/s, covering 10 Gigabit Ethernet at 10.3125 Gbps and OC-192/STM-64 SONET/SDH protocols at 9.95328 Gbps. It features duplex LC optical connectors and a 30-pin XFP electrical interface with XFI-compliant differential signals. Internal AC coupling is implemented on both transmit and receive paths. The module operates from a single +3.3 V power supply with typical power consumption below 3.5 W.

Digital diagnostic monitoring (DDM) capabilities are provided via the two-wire I2C management interface, enabling real-time reporting of operating parameters such as transmitted optical power, received optical power, laser bias current, supply voltage, and internal temperature. Programmable warning and alarm thresholds support proactive monitoring and fault management. Additional functions include transmitter disable (TX_DISABLE) and loss-of-signal (LOS) detection.

Optical performance specifications include average transmitter output power ranging from approximately -8.2 dBm to +0.5 dBm and receiver sensitivity of -14.4 dBm or better. The design ensures compliance with IEEE 802.3ae for 10GBASE-LR, along with relevant standards for jitter tolerance, extinction ratio, and link budget. The IGF-17311J-FN is classified as a Class 1 laser product and meets applicable EMC, laser safety, and RoHS requirements.

The transceiver is compatible with Foundry Networks (Brocade) equipment and other third-party platforms that accept standard XFP modules, including routers, switches, and optical transport systems. It is well-suited for enterprise backbones, metropolitan area networks (MAN), data center interconnects, and carrier Ethernet applications requiring 10 km reach on single-mode fiber.

The hot-pluggable form factor allows insertion and removal without interrupting host system operation. The module is rated for commercial temperature operation, typically 0°C to +70°C, and requires adequate airflow around the XFP cage for optimal thermal performance in high-density deployments.

During operation, the IGF-17311J-FN supports rate adaptation where permitted by the host device and maintains internal calibration for accurate digital diagnostics. Recommended fiber connections use duplex single-mode LC patch cables with low insertion loss. Proper fiber cleaning and inspection procedures are essential to avoid performance degradation due to contamination.

This module provides a standards-compliant, cost-effective solution for 10G network upgrades and expansions. It integrates seamlessly with host management systems through SNMP or CLI interfaces for remote configuration and monitoring. Diagnostic data can assist in troubleshooting issues related to fiber quality, connectors, or environmental factors.