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Configuring WAN Line Services
7-20
308648-14.00 Rev 00
Setting the Signal Level
The Signal Level parameter specifies the T1 transmit power level in decibels (dB).
Line buildout conditions the signals to mitigate attenuation. Line buildout also
depends on the physical length of the T1 line.
The carrier determines signal levels on a long-haul (0 to 6000 ft. of cable) T1
network interface. If 0.0 dB is not sufficient for long-haul, the carrier determines
values of -15 (ds1-minus15) and -7.5 dB (ds1-minus-7point5).
Signal power for DSX-1 short-haul (0 to 655 ft.) is based on cable length. For
DSX-1, decibel levels correspond to cable length, as follows:
By default, the signal level is set to 0.0 dB. Set the long-haul or short-haul signal
level for this MCT1 interface according to the length of the cable or as the
carrier specifies.
Using the BCC
To change the signal level, navigate to the mct1 prompt (for example,
box
;
mct1/1/1
) and type:
signal-level
variable
For example:
mct1/1/1#
signal-level ds1-minus-15
Using Site Manager
See the Signal Level (dB) parameter on page A-31 for information.
Table 7-6. Signal Level Options
Cable Length BCC Option Site Manager Option
0 to 133 ft. zero-point0 0.0 dB
133 to 255 ft. dsx1-plus-point5 0.5 dB
255 to 399 ft. dsx1-plus-point8 0.8 dB
399 to 533 ft. dsx1-plus1-point1 1.1 dB
533 to 655 ft. dsx1-plus1-point5 1.5 dB
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