Cabletron Systems CyberSWITCH CSX400, Руководство пользователя

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CSX400 Configuration with QuickSET
CSX400 and CSX400-DC User’s Guide 81
This section explains how to configure the CSX400 Wide Area T1 interface using QuickSET.
The line configuration information shown in Table 12 must be supplied by your service provider.
The CSX400 factory default settings are in bold.
The following definitions explain the fields in the T1 WAN configuration window.
T1 Frame Type — Displays the T1 frame type. The selections are ESF (Extended Superframe)
and D4 (AT&T D4). The default setting for this field is ESF.
T1 Line BuildOut — Displays the signal level 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 options are available for this setting:
• 0 dB
• -7.5 dB
• -15 dB
T1 Line Coding —
Displays the line coding for the physical T1 line. The selections for this field
are B8ZS and AMI. The default setting for this field is B8ZS.
NOTE
The service provider (i.e., AT&T, Sprint, MCI, etc.) determines the settings for many of
the following fields. Consult the service provider for the correct settings.
Table 12 Telco Configuration Information
Configuration Information
Required by User Configuration Information
Supplied by Service Provider
T1 Frame Type ESF or D4
T1 Line BuildOut 0 dB, -7.5 dB, -15 dB
T1 Line Coding B8ZS or AMI
T1 Loop-Back No Loop or Line Loop
T1 Transmit Clock Source Loop-Timing or Local-Timing
Time Slots (for Fractional T1) Time Slot (1-24) Assignments