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90 Nokia Network Voyager for IPSO 4.0 Reference Guide
The T1 CSU/DSU Advanced Options page allows you to configure fractional T1 channels,
line build-out values and other advanced settings for the T1 device. The values you enter on
this page are dependent on the subscription provided by your service provider.
16. From the Advanced T1 CSU/DSU Options page, click Up to return to the physical interface
page.
17. Click the logical interface name in the Interface column of the Logical interfaces table to go
to the Interface page.
18. Enter the IP address for the local end of the link in the Local address text box.
19. Enter the IP address of the remote end of the link in the Remote address text box.
Click Apply.
20. (Optional) Change the interfaces logical name to a more meaningful name by typing the
preferred name in the Logical name text box.
Click Apply.
21. (Optional) Add a comment to further define the logical interfaces function in the Comments
text box.
22. Click Apply.
23. Click Save to make your changes permanent.
To configure a T1 Interface for PPP
1. Click Interfaces under Configuration > Interface Configuration in the tree view.
2. Click the interface link to configure in the Physical column. Example:
ser-s2p1.
3. (Optional) Click On or Off in the Internal Clock field to set the internal clock on the T1
device.
When you connect to a device or system that does not provide a clock source, set Internal
Clock to On; otherwise, set it to Off. Internal clocking for T1 is fixed at 1.544 Mbps. To
configure slower speeds, you must configure fractional T1 on the Advanced T1 CSU/DSU
Options page.
4. Click Apply.
5. Click Full Duplex or Loopback in the Channel Mode field.
Full duplex is the normal mode of operation.
6. Click AMI or B8ZS in the T1 Encoding field to select the T1 encoding.
This setting must match the line encoding of the CSU/DSU at the other end of the point-to-
point link.
7. Click Apply.
8. Click Superframe (D4) or Extended SF in the T1 Framing field to select the T1 Framing
format.