HP R4.2 - Manual (Page 204)

4
Switch Interface Administration Digital Interfaces
UCS 1000 R4.2 Administration 585-313-507 Issue 3 April 2000 165
If you also change digital protocol assignments on the voice
system, you must make the change on the switch.
To assign the Mexico protocol to an E1 circuit card:
1 Start at the Digital R2 MFC Protocol - Mexico menu ( Figure 93 on page
164 ) and select:
> Assign Card