User`s guide

WAN Configuration Using Local Management
CSX200 Family User’s Guide 137
Mode — Displays the interface mode (in this case the mode is always “Primary”).
Active — Displays the active status of the T1 port, Yes or No.
Interfaces — Displays the available interfaces (002 – 025).
T1 Configuration Fields
The following line configuration fields are displayed on the WAN Physical Configuration screen
shown in Figure 64.
T1 Time Slot View — Displays the status of the Time Slot Configuration table. The selections for
this field toggle between Active and New. The Active setting displays current Time Slot
Configuration table settings. The default setting is Active. The New setting allows you to change
Time Slot Configuration table settings. The default setting for the Time Slot Configuration table is
all Time Slots not assigned (000).
T1 Line Coding — Displays the line coding for the physical T1 line. The selections toggle
between B8ZS and AMI. The default setting for this field is B8ZS.
T1 Frame Type — Displays the T1 Frame type. The selections toggle between ESF and D4. The
default setting for this field is ESF.
T1 Tx Clock Source — Displays the T1 Transmit Clock Source. The selections for this field
toggle between Loop-Timing (Extracted Line Data) and Local-Timing (Internal Clock). The
default setting for this field is Loop-Timing.
T1 Line Buildout — Displays the line coding for the physical T1 line. Set this to 0 dB unless the
service provider recommends another setting. The default setting for this field is 0 dB. The
selections for this setting toggle between the following levels.
• 0 dB
• -7.5 dB
• -15 dB
NOTE
The service provider (i.e., AT&T, Sprint, MCI, NYNEX, etc.) determines the settings for
the following fields. Consult the service provider for the correct settings.