Siemens V50017-U773-K500 SFP Transceiver

The Siemens V50017-U773-K500 is a hot-pluggable SFP (Small Form-factor Pluggable) optical transceiver module designed for compatibility with Siemens and Nokia Networks (NSN) equipment. It provides a bidirectional optical interface supporting Gigabit Ethernet and related protocols at a nominal data rate of 1.25 Gbit/s.This module operates at a nominal wavelength of 1550 nm using a high-performance DFB laser transmitter and a sensitive PIN or APD photodiode receiver. It is optimized for single-mode fiber (SMF 9/125 µm) with a typical transmission distance of up to 80 km (ZR-class reach). The optical link budget supports reliable long-reach performance with low bit error rates (better than 10⁻¹²) when used with appropriate dispersion compensation or optical amplification depending on fiber quality and link conditions. Transmitter output power and receiver sensitivity are aligned with extended long-reach (ZX/ZR) specifications for metro, regional, and long-haul applications.

The V50017-U773-K500 complies with the SFP MSA (INF-8074i) and IEEE 802.3z standards for Gigabit Ethernet extended-reach interfaces. It handles serialized data streams with low jitter generation and high extinction ratio. Digital diagnostic monitoring (DDM/DOM) functions compliant with SFF-8472 allow real-time reporting of transmitted and received optical power, laser bias current, internal temperature, and supply voltage via the I²C interface for advanced performance monitoring and fault isolation.

Optical connectivity is realized through a duplex LC connector. Key operational features include Loss of Signal (LOS) detection and assertion, automatic laser shutdown (ALS) for Class 1 eye safety compliance, and hot-swap capability. The module uses the standard 20-pin SFP electrical interface with a 3.3 V power supply and low power consumption (typically below 1.5 W), making it suitable for high-density port configurations in routers, switches, and optical transport platforms.

Environmental specifications meet carrier-class requirements with a commercial operating temperature range of 0°C to +70°C (extended/industrial variants may be available), high humidity tolerance, and built-in ESD protection. This SFP transceiver is primarily used for long-reach point-to-point Gigabit Ethernet links in metro aggregation, regional transport networks, or as uplink/interconnect interfaces in Siemens/NSN-compatible equipment.

The module integrates seamlessly with network management systems for remote provisioning and monitoring. Installation requires standard fiber optic cleaning procedures, correct Tx/Rx fiber polarity, and adherence to minimum bend radius guidelines for patch cords. Depending on the exact link length and fiber characteristics, dispersion compensation or optical amplifiers may be required to achieve the full 80 km reach. The Siemens V50017-U773-K500 offers a reliable, compact, and cost-effective solution for extended-reach 1000BASE-ZX / ZR optical transport over single-mode fiber in telecom infrastructures.