H3C MSR 30-16 Installation Manual

Also see for H3C MSR 30-20 ROUTER: Command reference User manual User manual Supplementary guide Installation manual

Contents

30 CHAPTER 3: INSTALLATIONConnecting the PGNDw WARNING: The normal connection of the protection ground (PGND) on therouter chassis is an essential safeguard against the lightning shocks andinterference. You must correctly connect the PGND when installing or using therouter.As shown in the following figure, the router provides a protection ground (PGND)screw at the top right-rear of the chassis. You must securely connect it to the earthground to safely channel faradic current and leakage electricity to the ground andhave the device less susceptible to electromagnetic interference (EMI).This PGNDwire can also protect the router against the lightning caused by the connectionwith the external network lines, such as E1/T1 line, ISDN/PSTN line.n No protection grounding wire is delivered together with the MSR 30-11.The grounding screw of H3C MSR 30 Series Router, which is marked withgrounding label, is located near the AC power socket and its switch on the rearpanel of the chassis, as shown in the following figure:Figure 14 Grounding terminal of the routerUse a PGND wire to connect the screw to the earth ground, and the groundingresistance should not be greater than 5-ohm. Likewise, if the router is installed in a19-inch standard rack, this rack is required to be grounded too.w WARNING: When the router is in normal operation, it is required to be wellgrounded. Otherwise, the router cannot reliably avoid lightning, which maydamage the router itself and even the peer device.Connecting the PowerCordBase on power supply mode, the MSR 30 Series Routers have three models: DC,AC and PoE. You can choose suitable ones as needed.Power Input and PGND Table 20 Power input and PGND of the H3C MSR series routersItem DescriptionPower input AC-powered: provide 100 VAC to 240 VAC input socketDC-powered: provide -60 VDC to -48 VDC input socketPGND Ground terminal available: connected to the earth groundwith ground cable