RAD UN600024731 SFP-6DH Transceiver

The RAD UN600024731 (SFP-6DH) is a hot-pluggable SFP (Small Form-factor Pluggable) optical transceiver module designed for Gigabit Ethernet and 1G Fibre Channel applications in RAD Data Communications equipment and compatible platforms. It provides a bidirectional optical interface operating at data rates from 1.0625 Gbit/s to 1.25 Gbit/s.This module operates at a nominal wavelength of 1310 nm using a Fabry-Perot (FP) laser transmitter and a PIN photodiode receiver. It is optimized for single-mode fiber (SMF 9/125 µm) with a typical transmission distance of up to 10 km (some compatible variants support up to 20 km depending on link budget and fiber quality). The optical specifications align with 1000BASE-LX / 1000BASE-LX10 requirements, delivering a guaranteed link budget of approximately 13 dB and reliable performance with low bit error rates (better than 10⁻¹²) over the specified reach.

The SFP-6DH complies with the SFP MSA (INF-8074i), IEEE 802.3z 1000BASE-LX, and related standards for Gigabit Ethernet. It supports serial data transmission with low jitter generation and high extinction ratio. Many variants include digital diagnostic monitoring (DDM/DOM) compliant with SFF-8472, allowing real-time access to parameters such as 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 W), making it suitable for high-density port configurations in switches, routers, and multiservice access platforms.

Environmental specifications meet carrier-class requirements with a commercial operating temperature range of 0°C to +70°C (industrial hardened “H” variants support -40°C to +85°C). The transceiver features high humidity tolerance and built-in ESD protection. It is primarily used for point-to-point Gigabit Ethernet links in metro access networks, enterprise backbones, or as uplink/tributary interfaces in RAD equipment such as ETX, RIC, and other carrier Ethernet devices.

The UN600024731 integrates seamlessly with network management systems for remote monitoring. Installation requires standard fiber optic cleaning procedures, correct Tx/Rx fiber polarity, and adherence to minimum bend radius guidelines. This SFP transceiver offers a reliable, compact, and cost-effective solution for 1.25 Gbit/s optical transport over single-mode fiber up to 10 km in telecom and industrial environments.