Enter the following commands to find the OS X USB port number: macbook:user$ cd /dev macbook:user$ ls -ltr /dev/*usb* crw-rw-rw- 1 root wheel 9, 66 Apr 1 16:46 tty.usbmodem1a21Ĥ. Connect the OS X USB port to the router.ģ. Use the Finder to go to Applications > Utilities > Terminal.Ģ. To connect a Mac OS X system USB port to the console using the built-in OS X Terminal utility:ġ. Connecting to the Console Port with Mac OS X Configure the terminal emulation software with the parameters described in About the Console Port.ģ. Start a terminal emulator application, such as Windows HyperTerminal (included with some versions of Windows OS) or PuTTY.Ģ. To connect to the router console port using Microsoft Windows:ġ. Connecting to the Console Port with Microsoft Windows To prevent unauthorized access to the router configurations and passwords, the Ctrl-C command is disabled on the Cisco CGR 1240 Router while it is booting up and loading the system software. On many Cisco routers, you can enter Ctrl-C to interrupt the router startup process and then delete or change the admin password, or view or delete the router configuration. The router console port is located on the router exterior and is accessible by removing the seal over the console port (see Console Port). Specifies the stop bits for an asynchronous line. Specifies the odd or even parity for error detection. Specifies the number of bits in an 8-bit byte that is used for data.

Specifies the transmission speed for the connection. Console Port SettingsĬonfigure the following parameters for the console port: Any device connected to this port must be capable of asynchronous transmission. The console port is an asynchronous serial port that allows you to connect to the device for initial configuration through a standard RS-232 port with an RJ-45 connector. This port should never be left unattended when in use. This port should be exposed only during terminal sessions, when a cable is connected to the port. When a cable is connected to this port, the router interior is exposed to environmental elements, which can damage the port and the router interior. About the Console PortĬaution: The console port does not support cable glands. ■ Connecting to the Console Port with Linux Before You Beginīefore you start a terminal session with the router, you must connect a PC or PC terminal to the router console port by following the instructions in Connecting the Console Port. ■ Connecting to the Console Port with Mac OS X ■ Connecting to the Console Port with Microsoft Windows Start a terminal session with the router when you are at the router installation location and want to administer the router with a direct connection using the command-line interface (CLI) software. This section describes how to start a terminal session with the Cisco 1240 Connected Grid Router (CGR 1240 or router) using the console port.

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