Configuring and Monitoring through the LCD

HDSL Margin

You can view the current HDSL loop margin values, measured in dB, for the local and remote HDSL loop. The listed values represent the margin relative to a signal-to-noise ratio required for a Bit Error Rate (BER) of 10-7. A margin value greater than zero indicates a performance of better than 10-7. The system provides a minimum margin of 6 dB, which translates to a performance of 10-10BER or better.

To view the HDSL margin:

1Press Escape until CAMPUS RS I/F: REX displays.

2Press Next. HDSL LINK CONFIG & STATUS displays then press Enter.

3Press Next until MARGIN displays.

Port Statistics

You can view the following statistics for the Ethernet and HDSL ports:

•number of frames correctly received (IN)

•number of frames correctly transmitted (OUT)

•number of frames dropped due to an overflow of the input or output buffer on the port (DSCRD)

•number of frames received in error from both the input and output buffers, such as CRC errors, alignment errors, and dribbling hit errors (ERR)

To view the port statistics:

1Press Escape until CAMPUS RS I/F: REX displays.

2Press Next four times. DIAGNOSTICS displays.

3Press Enter. LOOPBACK MODE displays.

4Press Next two times. REX STATISTICS displays.

5Press Enter. ETHERNET PORT FRAMES displays.

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Campus-REX RS Interface Card User Manual