MDS LEDR 1400F, Installation & Operation Manual

Page: 73 / 154

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 65
Returns:
led: Alarm LED ON
line Attributes of lines (cables) used with the radio’s T1 or E1 Interface.
This command is used to set or display the internal pulse template selec-
tion used by the LEDR interface to compensate for signal distortion cre-
ated by various lengths and types of interface cables.
The
[linelist]
variable represents a list of line interfaces. It can consist of
a single line number or line name, a comma-separated list of line num-
bers or line names, a range of line numbers (i.e., 1–4), or if linelist is not
given all lines will be displayed. See
Table 19 on Page 59 for a list of
line numbers.
Usage For T1:
line [linelist] [cable length<0–4>] [spec]
T1 interfaces require setting of a minimum of two variables: ITU cable
specification and cable length.
Table 21 shows the specification options
and Table 22 lists values used for various lengths of standard 100
Ω
twisted pair cables
Table 21. ITU Cable Specifications—Subcommand [spec]
Usage For E1:
line [linelist] [spec]
The only cable specification needed for E1 is the ITU cable type.
Table 23 lists the specification values for two standard 120
Ω
ITU-T
G.703 cables
Table 23. E1 Cable Specifications—Subcommand [spec]
Specification
g.775 (Default)
i.431
FT1
E1
FE1
FT1
Table 22. Cable Length Values—Subcommand [cable length]
Value Line Length (Meters) Line Length (Feet)
0 0.3 to 40 (default) 1 to 133 feet (default)
1 40 to 81 133 to 266
2 81 to 122 266 to 399
3 122 to 163 399 to 533
4 163 to 200 533 to 655
Specification
g.775 (Default)
i.431
E1
FE1