Справочник Пользователя для Netopia PN Series

When you are using the leased line inter faces T1 and DDS, you can 
configure an automatic CSU backup, to switch to the SA port during a 
leased line failure.

CSU Backup Configuration

         Enable SA Port as CSU Backup       Yes

         Requires Data Link Failure of...   30 Sec

         Circuit Type...                    Switched Async

         Data Rate (kbps)...                57.6

         Modem Initialization String:       AT&C1&D2E0S0=1

         Modem Dialing Prefix:              ATDT

         Data Link Encapsulation is         Async PPP

In the CSU Backup Configuration Screen, follow these steps to enable 
the SA port as the CSU backup.

1.

Select Enable SA Port as CSU Backup and toggle it to Yes.

2.

Select Requires Data Link Failure of. From the pop-up menu, 
select how long the failure must be to enable the backup. The 
default is 30 seconds.

3.

The remaining fields configure the SA port. See “Line 
configuration for an SA/Serial line” on page 2-7 for more 
information.

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Configuration

WAN
Setup

CSU Backup

Configuration