Cisco Catalyst 3000, Руководство администратора

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Description Setting
Select Internal or External for the clock source. Clock
Specify the digital encoding format. Select one of the following
formats:
• a-law—Use for Europe and other countries, except North
America, Hong Kong, Taiwan, and Japan
• mu-law—Use for North America, Hong Kong, Taiwan, and
Japan
PCM Type
Select the line coding from one of the following:
• Binary 8-zero substitution (B8ZS)
• Alternate mark inversion (AMI)
Line Coding
Select the multiframe format of the span from one of the following:
• Extended Superframe Format (ESF)
• Superframe Format (SF)
Framing
Select whether to enable or disable echo cancellation. Echo Cancellation
If an issue occurs with echo cancellation, select a value to address
the issue. Choose one of the following values:
• 24
• 32
• 48
• 64
• 128 (available with MCS7890C1 internal gateway only)
This option is available only if echo cancellation is
enabled. Note
Coverage (ms)
Select the order in which channels or ports are enabled from first
(lowest number port) to last (highest number port), or from last to
first.
Valid entries include TOP DOWN (first to last) or BOTTOM UP
(last to first). If you are not sure which port order to use, select TOP
DOWN.
Channel Selection Order
Administration Guide for Cisco Business Edition 3000, Release 8.6(4)
272 OL-27022-01
Connection Settings