Operation Manual – LoginH3C S5600 Series Ethernet SwitchesChapter 5 Logging In Through the Web-basedNetwork Management System4-1Chapter 4 Logging In Using a ModemGo to these sections for information you are interested in:z Introductionz Configuration on the Switch Sidez Modem Connection Establishment4.1 IntroductionThe administrator can log in to the console port of a remote switch using a modemthrough public switched telephone network (PSTN) if the remote switch is connected tothe PSTN through a modem to configure and maintain the switch remotely. When anetwork operates improperly or is inaccessible, you can manage switches in thenetwork remotely in this way.To log in to a switch in this way, you need to configure the administrator side and theswitch properly, as listed in the following table.Table 4-1 Requirements for logging in to a switch using a modemItem RequirementThe PC can communicate with the modem connected to it.The modem is properly connected to PSTN.AdministratorsideThe telephone number of the switch side is available.The modem is connected to the console port of the switch properly.The modem is properly configured.The modem is properly connected to PSTN and a telephone set.Switch sideThe authentication mode and other related settings are configuredon the switch. Refer to Table 2-3.4.2 Configuration on the Switch Side4.2.1 Modem ConfigurationPerform the following configuration on the modem directly connected to the switch:AT&F ----------------------- Restore the factory settingsATS0=1 ----------------------- Configure to answer automatically after thefirst ringAT&D ----------------------- Ignore DTR signal