MX2800 M13 Multiplexer User Manual Configuration, Section 361200290L1-1G 3-11Figure 3-7. T1/E1 Line Coding MenuT1/E1 Line LengthSet the line length for each T1 interface according to the distance from the MX2800 to the connecting DSXtermination. See Figure 3-8 on page 3-12. The E1 Line Length is not selectable and remains at 0-6 dBloss. Select Set Multiple to configure the line length for a contiguous group or all of the T1s to the samelength at the same time. Refer to Set Multiple on page 3-9 for a description of the Set Multiple option.