Netopia 4000-Series manual T1 Line Configuration screen is shown below

WAN and System Configuration 2-7

T1 Line Configuration screen

The T1 Line Configuration screen is shown below:

T1 Line Configuration

Operation Mode...	HDLC
Line Encoding...	B8ZS
Framing Mode...	ESF
Transmit ANSI PRMs:	No
AutoDetect DS0 Channels:	No
Number of DS0 Channels:	1
First DS0 Channel:	1
Buildout (-dB)...	0-0.6
Channel Data Rate...	Nx64k
Data Link Encapsulation...	Frame Relay
PPP over Frame Relay Enabled:	Off

Return/Enter goes to new screen.

Enter Information supplied to you by your telephone company.

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

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Select Line Encoding and press Return. From the pop-up menu, highlight the encoding your telephone service provider uses: B8ZS or AMI. The default setting is B8ZS. Press Return.

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

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If you selected ESF framing mode, toggle Transmit ANSI PRMs either No (the default) or Yes. If you selected D4 framing mode, this option is not available.

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 service provider uses equipment that supports DS0 channel auto detection. Otherwise accept the default No.

■Select Number of DS0 Channels and enter the number of DS0 channels that you and your telephone service provider have determined are necessary 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 of 24 specifies a fractional T1 interface.

For fractional T1, you can also specify in the check box whether the DS0 channels are contiguous or alternating.

■Select First DS0 Channel and enter the number of the first active DS0 channel you will be using. The