Netopia 4522 T1 用户手册

The T1 Line Configuration screen appears.

1.

Select Operation Mode and press Return. From the pop-up menu, highlight the mode your telephone ser-
vice provider uses: HDLC, CM-HDLC (Copper Mountain), or ATM. The default setting is HDLC. Press 
Return.

2.

Select Line Encoding and press Return. From the pop-up menu, highlight the encoding your telephone 
ser vice provider uses: B8Zs or AMI. The default setting is B8Zs. Press Return. 

3.

Select Framing Mode and press Return. From the pop-up menu, highlight either ESF or D4, depending on 
the framing mode that your telephone ser vice provider advises you to use. The default setting is ESF. Press 
Return. 

4.

Select AutoDetect DS0 Channels. Netopia routers whose model number ends in “-T” may be able to use 
the auto detection feature. Toggle this item to Yes if your ser vice provider uses equipment that suppor ts 
DS0 channel auto detection. Other wise accept the default No.

5.

Select Number of DS0 Channels and enter the number of DS0 channels that you and your telephone 
ser vice provider have determined are necessar y for your T1 line. The default setting for DS0 Channels is 1 
(one). Press Return. 

Note: Each DS0 channel represents a 56k or 64k increment in bandwidth. Selecting a number less than 
the maximum specifies a fractional-T1 inter face. You can have a maximum of 24 DS0 channels. 

6.

Select First DS0 Channel and enter the number of the first active DS0 channel you will be using. The 
default setting is 1 (one). Press Return.

Note: You can change the First DS0 Channel number, which has a valid range from one to the maximum 
number minus the number of active channels. If the number of active DS0 channels is 24 (maximum), First 
DS0 Channel is hidden.

If you specify a number of DS0 channels less than the maximum, a Contiguous Channels item appears. For 
fractional-T1, you can specify whether the DS0 channels are contiguous or alternating by toggling 
Contiguous Channels to Yes or No.

                             T1 Line Configuration

         Operation Mode...                  HDLC
         Line Encoding...                   B8ZS
         Framing Mode...                    ESF

         AutoDetect DS0 Channels:           No
         Number of DS0 Channels:            1
         First DS0 Channel:                 1

         Channel Data Rate...               Nx64k

         Data Link Encapsulation...         Frame Relay
         PPP over Frame Relay Enabled:      Off

         TO MAIN MENU                       NEXT SCREEN

Return/Enter goes to new screen.
Enter Information supplied to you by your telephone company.