Cabletron Systems manual 1 T1 Physical Configuration

Fractional T1 Configuration Using PPP

The line configuration information shown in Table 3-2must be supplied by the service provider.

Table 3-2 Telco Configuration Information

Configuration Information	Configuration Information
Required by User	Supplied by Service Provider
Line Coding	B8ZS or AMI
Frame Type	ESF or D4
Clock Source	Loop Timing or Local Timing
DS-0s (Timeslots)	Timeslots being used for each end of
	the circuit

3.4.1T1 Physical Configuration

Begin the WPIM-T1/DDS physical configuration by accessing the WAN Physical Configuration screen through Local Management (Figure 3-1).

Proceed with the following steps:

1.Use the arrow keys to highlight the WPIM X field at the bottom of the screen. Press the SPACE bar to select the number of the WPIM being configured, then press ENTER.

2.Use the arrow keys to highlight MgrType. Select PPP.

NOTE

When changing from one protocol to another on a WPIM-T1/DDS that has been operational, save NONE as the protocol before changing to another protocol.

3.Use the arrow keys to highlight Timeslot View. Press the SPACE bar to select New, then press ENTER. The cursor moves to Timeslot #1 of the Timeslot Configuration Table.

4.Insert an interface number (refer to Note below) into every Timeslot being used (in the example shown back in Figure 3-7, 16 Timeslots are used, the rest have zeros in them). Type the number, press ENTER, then use the arrow keys to highlight the next Timeslot field. Exit this field by using the arrow keys.The cursor automatically moves to the T1 Line Coding field.

WPIM-T1/DDS User’s Guide 3-15