Opnext V50017-U323-K500 SFP I-16.1 1310nm 2km

The Opnext V50017-U323-K500 is a hot-pluggable SFP (Small Form-factor Pluggable) optical transceiver module designed for short-reach SDH/SONET applications. It provides a single bidirectional optical interface operating at the nominal line rate of 2.488 Gbit/s (OC-48/STM-16), with multirate support for lower speeds including STM-1 (155 Mbit/s) and STM-4 (622 Mbit/s) depending on host platform configuration.This module is classified as Short Reach I-16.1 (or equivalent SR-1) according to ITU-T G.957 and SONET/SDH standards. It utilizes a 1310 nm Fabry-Perot (FP) laser transmitter and a PIN photodiode receiver, optimized for single-mode fiber (SMF 9/125 µm). The typical transmission distance is up to 2 km with an adequate link power budget for intra-office or short metro connections. Transmitter output power and receiver sensitivity are aligned with short-reach specifications to ensure low bit error rates (better than 10⁻¹²) over the specified distance.
The V50017-U323-K500 complies with SFP MSA requirements and relevant SONET/SDH framing standards. It supports framed signals with section, line, and path overhead processing when installed in a compatible host shelf. The transceiver enables transport of concatenated payloads or grooming of lower-rate client signals through the platform’s cross-connect functions.
Optical connectivity is realized via a duplex LC connector. Key operational features include Loss of Signal (LOS) detection, automatic laser shutdown (ALS) for Class 1 eye safety compliance, and digital diagnostic monitoring (DDM) compliant with SFF-8472. Real-time parameters such as transmitted and received optical power, laser bias current, temperature, and supply voltage are reported to the network management system for performance monitoring and fault isolation.
The module interfaces electrically through the standard 20-pin SFP connector with a 3.3 V power supply and low power consumption, suitable for high-density deployments. It supports hot-swap insertion and removal without service disruption in redundant configurations. Environmental specifications include a commercial operating temperature range (typically 0°C to +70°C), high humidity tolerance, and integrated ESD protection.
This SFP transceiver is primarily used for short-reach interconnections in SDH/SONET add-drop multiplexers, terminal equipment, or as a tributary interface in multiservice transport platforms. It ensures reliable 2.5 Gbit/s optical transport with low jitter and high signal integrity over single-mode fiber for distances up to 2 km. The module integrates seamlessly with network element management systems for remote provisioning, alarm reporting, and detailed performance data collection (including BIP error checking and signal quality thresholds).
Installation requires standard fiber cleaning procedures, correct Tx/Rx fiber polarity, and adherence to minimum bend radius guidelines. The Opnext V50017-U323-K500 offers a compact and cost-effective solution for short-reach OC-48/STM-16 links in carrier-grade telecom infrastructure.