The WAN Physical Configuration ScreenLocal Management User’s Guide2-5T1 Line Configuration FieldsThe configuration fields displayed on the WAN Physical Configuration screen shown inFigure 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 fieldtoggles between Active and New. The field comes up with the default setting Active. The Activesetting displays current Timeslot Configuration table settings. The New setting allows you tochange Timeslot Configuration table settings. The default setting for the Timeslot Configurationtable is all timeslots not assigned (000).T1 Line Coding (Toggle) — Displays the line coding for the physical T1 line. This field togglesbetween 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 togglesbetween Loop-Timing (Extracted Line Data) and Local-Timing (Internal Clock). The defaultsetting is Loop-Timing.T1 Line Buildout (Selectable) — Displays the line coding for the physical T1 line. Set this to 0dB unless the service provider recommends another setting. The default setting for this field is 0dB. 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 FtNOTEThe service provider (i.e., AT&T, Sprint, MCI, Bell Atlantic, etc.) determines thesettings for the following fields. Consult the service provider for the correct settings.
