Using The Command Line Interface; Connecting To The Serial Port - Symmetricom XLi User Manual

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Using the Command Line Interface

The next two sections show how to connect to the XLi using the serial and network ports. Both the serial
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port and the network port give the user access to the XLi's command line interface. While the keypad/
display interface provides a simple menu-driven user interface, the command line interface features:
• Additional functions that aren't available through the keypad/display
• Remote access over a network
To use the command line interface, refer to the explanations and examples in the 'Command Line'
subsections for each function in the XLi User's Guide and Reference Manual.

Connecting to the Serial Port

Complete the following steps to set up and use the Serial Port to communicate with the XLi.
Verify that the XLi's serial port settings are as follows: (Keypad:
ARROWs.)
• Serial Port – RS232
• Baud rate – 9600
• Data bits – 8
• Parity – NONE
• Stop bits – 1
Note:
Parity set to NONE is only valid when Data Bits is set to 8.
Connect a null-modem cable from the PC's serial port to the XLi's "SERIAL I/O" port.
If needed, configure your PC's terminal emulation program to match the serial port settings above (9600,
8, N, 1). Set Flow Control to "None".
One terminal emulation program, HyperTerminal, is usually found in Microsoft Windows under
Programs – Accessories or Programs – Accessories – Communications.
Initiate a serial port connection between the terminal emulation program and the XLi. (The Serial Port
connection does not require you to log in.)
Once connected, press the Enter key on your keyboard to get a command prompt.
From the command prompt, ">", you can use the functions described in the "Function Reference" section
of the XLi User's Guide and Reference Manual. The 'Command Line' sub-sections provide instructions
and examples.
Troubleshooting Tip: If the terminal emulation software has trouble displaying XLi responses (looks like
the unit doesn't respond to inputs), add a 1 ms/character delay to the software's serial port settings.
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ENTER–4–ENTER
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. Use the UP/DOWN
XLi Time & Frequency System
XLi-man, Issue 8, 6/17/2008, Rev. H
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