Quick Start Manual
Installation Guide for the Model EN516 Ethernet Hub
1-2 Introduction
• Built-in 100-240 V switching power supply, eliminating the need for bulky wall transformers
• Thirty-eight front panel light emitting diode (LED) indicators, providing real-time status of 
the individual ports and overall hub status
• Plug-and-play with no software to configure
• Hub functions such as packet retiming, collision detection, preamble regeneration, and 
fragment extension
• Automatic partitioning and reconnection of a port that has excessive collisions or is jabbering
• Automatic polarity detection for recognizing and correcting incorrect polarity on the receive 
pair
• Ability to expand the network size by connecting multiple hubs together using twisted pair or 
coaxial cabling
• Compact design, enabling easy tabletop or rack-mounting installation
• Limited five-year warranty on the unit and one-year warranty on the power supply










