Configuration: Full T1 Configuration Using PPPLocal Management User’s Guide2-19T1 Physical ConfigurationBegin the T1 configuration by accessing the WAN Physical Configuration screen through LocalManagement (Figure 2-3). Access the WAN Physical Configuration screen from the WAN SETUPmenu item in the host platform.Proceed with the following steps:1. Use the arrow keys to highlight the [WPIM X] field at the bottom of the screen. Press theSPACE bar to select the number of the WPIM to be configured, then press ENTER.2. Use the arrow keys to highlight MgrType. Select PPP.3. Use the arrow keys to highlight Timeslot View. Press the SPACE bar to select New, then pressENTER. The cursor moves to timeslot #1 of the Timeslot Configuration Table.4. Insert an interface number into every timeslot as needed (refer to the note below). Type thenumber, press ENTER, then use the arrow keys to highlight the next timeslot field. Exit thisfield by using the arrow keys. The cursor automatically moves to the T1 Line Coding field.The following four steps are based on information supplied by the service provider. Consult theservice provider for the correct settings.5. Use the arrow keys to highlight T1 Line Coding. Press the SPACE bar to select B8ZS or AMI,then press ENTER.6. Use the arrow keys to highlight T1 Frame Type. Press the SPACE bar to select ESF or D4,then press ENTER.7. Use the arrow keys to highlight T1 TX Clock Source. Press the SPACE bar to select Local (noclock source provided by telephone company) or Loop (clock source provided by telephonecompany), then press ENTER.NOTEWhen changing from one protocol to another on a HSIM or CyberSWITCH that hasbeen operational, save NONE as the protocol before changing to another protocol.NOTEThe value assigned to the timeslots is the interface being used for WANcommunication. The next available interface is displayed on the WAN PhysicalConfiguration screen in the Next IF field (see Figure 2-3). The Next IF number shownmust be used to add a new interface. The Next IF will increment as interfaces areadded. The previously entered interfaces can be modified by entering the interfacenumber.