ESUMN8-P2-B Quick Start Guide INTRODUCTION 1.1 ESUMN8-P2-B INTRODUCTION ESUMN8-P2-B is an unmanaged full SFP Industrial Ethernet switch with 8*100Mbps SFP and 2*1Gbps SFP ports. Industrial level 3 protection design and IP40 enclosure protection makes the product suitable for applications in harsh environments.