The IFS-401(-E) and IFS-402F(-E) series are 5 or 6-port Ethernet switches with 4-port 10/100Base-T(X) and 1 or 2-port 100Base-FX optical fiber, provide stable and reliable transmission for your industrial Ethernet connections. A relay output of power-failures warning and broadcast storm protecting functions can provide network engineers to prevent network break in advance. The switches are designed for harsh industrial environments and comply with FCC, UL, CE and EN50121-4 standard as well as comply with industrial grade high EMS protection. The IFS-401(-E) and IFS-402F(-E) switches use robust mechanical and components provide long MTBF. Standard operating temperature range models (0 ~ 60°C) and wide operating temperature range models (-40 ~ 75°C) that they fulfill the special needs of industrial automation applications.