
Configuring Line Services
C-6 114078 Rev. A
MCT1 Lines
Each port is set to ESF by default. Select a line type for testing:
• SF/D4 -- Transmits superframes consisting of 12 individual frames. If this
option is chosen, the FDL port actions do not apply and their buttons do not
appear in the MCT1 Port Actions Window.
• ESF -- Transmits superframes consisting of 24 individual SF/D4 frames and
provides enhanced signaling and synchronization.
• Unframed T1 -- Use to match the line type.
Enabling or Disabling the International Bit (MCE1 Only)
By default, MCE1 does not use the international bit in E1 frames. You can enable
or disable use of the International Bit for testing an MCE1 interface.
Setting the Signal Level (MCT1 Only)
By default, the T1 transmit power level is 0.0 dB. Specify one of the following
decibel level according to the length of the cable or as determined by the carrier.
• -15 dB
• -7.5 dB
• 0.0 dB
• 0.5 dB
• 0.8 dB
• 1.1 dB
• 1.5 dB
The DS1 values of -15 and -7.5 dB are long-haul; the carrier determines these
values if 0.0 dB is not sufficient. The DSX1 values of 0.0, 0.5, 0.8, 1.1, and 1.5 dB
are short-haul and correlate with cable length, as follows:
• 0.0 dB -- 0 to 133 ft
• 0.5 dB -- 133 to 266 ft
• 0.8 dB -- 266 to 399 ft
• 1.1 dB -- 399 to 533 ft
• 1.5 dB -- 533 to 655 ft
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