Installation ManualH3C S5500-SI Complete Series Ethernet Switches Chapter 3 Installing the Switch3-12Note:The AC power cord retainer can prevent the AC power cord from accidentally falling off.Step 4: Check whether the PWR LED on the front panel of the switch is ON. If the LEDis ON, it shows the power cord is properly connected.Caution:Make sure that the ground wire has been properly connected before powering on theswitch.3.2.2 Connecting the DC Power CordI. Connecting the DC Power cord of the S5500-28C-SI and S5500-52C-SIswitchesThe S5500-28C-SI and S5500-52C-SI switches use 12V-RPS DC power.Pin Number Designation Pin Number Designation1 GND 8 GND2 -50V 9 -50V3 12V 10 RPS_pres4 12V 11 -50Vrtn5 12V 12 -50Vrtn6 12V 13 Control Pin7 GND 14 GNDFigure 3-16 Appearance of the socket for 12V-RPS DC power of the switchStep 1: Connect one end of the chassis ground wire to the grounding screw on the rearpanel of the chassis and the other end to the ground as near as possible.Step 2: Connect the cable to the plug of the 12V-RPS DC power.z As shown in Figure 3-17, loosen the fastening screws and remove the air filterfrom the 12V-RPS DC power socket. (In the case of no 12V-RPS DC power supply,re-install the air filter.)
