61Port protective unit–single port, maximum discharge current (8/20 μs waveform): 5 kA; output voltage(10/700 μs waveform): core-core < 40 V, core-ground < 600 V.NOTE:For how to install the port lightning arrester, see the chapter “Installing the router.”Power lightning arrester (optional)Before connecting an outdoor AC power supply to the router, you must install a lightning protectionbusbar at the AC power input end and then connect the AC power cord to the lightning protectionbusbar to protect the router against lightning strikes. In a heavy lightning area, H3C recommendsinstalling a power lightning arrester.The following power lightning arrester can be installed on the SR6602. The specifications for the powerlightning arrester are as follows:Maximum discharge current: 6500 A; protection voltage: 220 VAC to 500 VAC.NOTE:For how to install the power lightning arrester, see the chapter “Installing the router.”Signal lightning arrester (optional)Typically, you must connect a signal lightning arrester—a transient over-voltage protection—beforeconnecting a signal cable to the router. This can protect electronic devices against surge over-voltageresulting from lightning strikes and other interferences, and minimize impact on the router.The SR6602 supports the following types of signal lightning arresters:• Voltage-limiting protection-signal lightning arrester-maximum discharge current 2.5KA/protectionvoltage 25V--SMB-75J/SMB-75J-1W-10Mbps• Voltage-limiting protection-signal lightning arrester-maximum discharge current 2.5KA/protectionvoltage 25V-BNC-75K/BNC-75K-10Mbps• Voltage-limiting protection-signal lightning arrester (U port)-maximum discharge current3KA/common mode 400 V/differential mode 170V-RJ11.NOTE:For how to install the signal lightning arrester, see the chapter “Installing the router.”
