9Table of ContentsImportant Safety Instructions ............................................................................. 3Basic Instructions for the Use of This Product ..................................................... 71. Product Outline ........................................................................................ 121.1. Features ............................................................................................... 121.2. Accessories .......................................................................................... 131.3. Optional Accessories ............................................................................ 141.4. Part Names and Functions .................................................................... 151.5. LED Behavior ........................................................................................ 171.5.1. LED Behavior at Starting-up .......................................................... 171.5.2. LED Behavior while Operating ...................................................... 181.5.3. Loop Detection and Blocking Function .......................................... 201.5.4. Operation Overview of PoE Power Supply Function ...................... 212. Installation ............................................................................................... 222.1. Installing in Rack .................................................................................. 223. Connection .............................................................................................. 233.1. Connecting a Twisted Pair Port ............................................................. 233.2. Connecting an SFP Extension slot ......................................................... 243.3. Connecting to Power ........................................................................... 254. Configuration ........................................................................................... 264.1. Login .................................................................................................... 274.2. Basic Operations on the Screen ............................................................ 294.3. Main Menu .......................................................................................... 314.4. General Information Menu ................................................................... 324.5. Basic Switch Configuration ................................................................... 344.5.1. System Administration Configuration ........................................... 364.5.2. System IP Address Configuration .................................................. 384.5.3. SNMP Configuration .................................................................... 404.5.3.a. SNMP Management Configuration ....................................... 414.5.3.b. SNMP Trap Receiver Configuration ....................................... 434.5.3.c. Enable/Disable Individual Trap Menu .................................... 454.5.4. Port Configuration Basic ............................................................... 484.5.5. Port Configuration Extend ............................................................ 514.5.6. Port Configuration Power Saving .................................................. 534.5.7. System Security Configuration ...................................................... 554.5.7.a. Telnet Access Limitation Configuration ................................. 594.5.7.b. RADIUS Configuration .......................................................... 614.5.7.c. Syslog Transmission Configuration ........................................ 634.5.7.d. SSH Server Configuration ..................................................... 654.5.7.e. LED Base Mode Configuration .............................................. 67