H3C MSR 20-1X Installation Manual

Also see for MSR 20-1X: Configuration guide Quick start

Contents

H3C MSR 20-1X Installation Manual Manual pdf 33 page image

26Step2 View the LINK LED of the Ethernet interface. If the LINK LED is ON, a link is present. If the LINK LED is OFF,no link is present. In the latter case, check the line.Connecting the AUX Interface to a ModemAUX interfaceThe AUX interface is an RS232 asynchronous serial interface, which can serve as a backup interface ofa WAN interface and provide dial connection. In case of console failure, the AUX interface can functionas the console interface.AUX cableThe AUX cable is an 8-core shielded cable. An RJ45 connector is equipped at one end and is connectedto the AUX interface. A DB25 male connector and a DB9 male connector are equipped at the other endand one of them is connected to the serial interface of the Modem.Figure 22 AUX cableConnecting the AUX cableFollow these steps to connect the AUX cable.Step1 Plug the RJ-45 connector of the cable into the AUX interface on the main control board.Step2 Plug the DB-25 or DB-9 connector into the serial interface on the analog Modem.When using the AUX interface for remote configuration or dial backup, you need to connect the localModem to the remote Modem over PSTN and then to the remote device. For the configuration procedure,refer to MSR Series Routers Configuration Guide.MSR 20-1X routers provide various interface cards and interface modules. For detailed information, referto MSR Series Routers Interface Module Manual.