User`s guide

The WAN Physical Configuration Screen
Local Management User’s Guide 2-5
T1 Line Configuration Fields
The configuration fields displayed on the WAN Physical Configuration screen shown in
Figure 2-3 are specific to the T1 mode of the HSIM or CyberSWITCH.
T1 Timeslot View (Toggle) — Displays the status of the Timeslot Configuration Table. This field
toggles between Active and New. The field comes up with the default setting Active. The Active
setting displays current Timeslot Configuration table settings. The New setting allows you to
change Timeslot Configuration table settings. The default setting for the Timeslot Configuration
table is all timeslots not assigned (000).
T1 Line Coding (Toggle) — Displays the line coding for the physical T1 line. This field toggles
between B8ZS and AMI. The default setting is B8ZS.
T1 Frame Type (Toggle) — Displays the T1 Frame type. This field toggles between ESF and D4.
The default setting is ESF.
T1 Tx Clock Source (Toggle) — Displays the T1 Transmit Clock Source. This field toggles
between Loop-Timing (Extracted Line Data) and Local-Timing (Internal Clock). The default
setting is Loop-Timing.
T1 Line Buildout (Selectable) — 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 following settings are available in this field:
• 0 dB
• -7.5 dB
• -15 dB
• -22.5 dB
• 133-266 Ft
• 267-399 Ft
• 400-533 Ft
• 534-655 Ft
NOTE
The service provider (i.e., AT&T, Sprint, MCI, Bell Atlantic, etc.) determines the
settings for the following fields. Consult the service provider for the correct settings.