User's Manual

200/346 Issue 01 - April 2001 - Draft 04 3CC12426AAAA TQ BJA 01
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4.12.2.1– Creation procedure of an X21 link
The implementation stages for an X21 cross-connection are as follows:
1. Selection and configuration of the ports for cross-connect: BS side (TNT board): see § 4.12.2.4 –
Ports configuration of TNT board (BS);
2. Selection of NT ports for cross-connect: see § 4.12.2.5 – Port selection on the NT side;
3. Cross-connect between time-slots of selected ports: see § 4.12.2.6 – Cross-connect;
4. Creation of an X21 link: see § 4.12.5.3 – Creation of a cross-connection;
4.12.2.2– Access to the X21 link management
To access X21 line management:
4.12.2.3– Presentation of the X21 link management screen
As the other sections are the same as that of the E1 leased lines screen, refer to § 4.12.1.3 –
Presentation of the E1 link management screen.
4.12.2.4– Ports configuration of TNT board (BS)
As the TNT board port configuration principle is the same as that of E1 leased lines, refer to § 4.12.1.4
– Ports configuration of TNT board (BS).
In case of 32 TS transmission, the TNT port has to be unstructured.
– click on the button shown here (in the main screen button bar),
or else,
– open the S
ervice pull-down menu and choose the item: E1.