@zaras27:
In principle, Joe57 is right - but only for the FB7270, not for the FB7170.
The FB7170 has no option to change between AnnexA and AnnexB via the GUI.
There is the "german version" with FW 29.04.xx and AnnexB only and the "international version" with FW 58.04.xx and annexA only.
There are many guides here in the forum explaining how to convert a "german" 7170 AnnexB into an "international" 7170 AnnexA.
Use the search function!
In order to help you we need some more information!
- what firm version runs on your FB7170 ?
- is the box a 7170_v1 or a 7170_v2 (different hardware) ?
- are you familiar with linux, telnet and ftp ?