20
Chapter 5 - Menu Structure
AMA 310/UMS V21.0
5.1.2
Editing of Parameters via the Numeric Keyboard
5.1.2.1
Numeric Parameters
If a parameter is selected, it may be edited via the numeric keyboard. In case of the DS frequency
from the example, the key sequence
6
→
3
→
4
→
0
→
0
has to be entered for a frequency of
634 MHz. This input has to be confirmed by pressing
ENTER
. You can see that the input is
accepted and the next parameter (in this case the modulation) is selected.
Figure 5-6 UMS downstream menu - frequency of DS no. 2 edited and confirmed
Now the modulation can be changed. The two arrows next to the standard default USDOC (for US-
DOCSIS) indicate that this parameter can be changed by the arrow keys
↑ and ↓
. For example, a
key stroke to the top changes the modulation from USDOC to DVBC.
5.1.2.2
Alphanumeric Parameters
In case of parameters which allow alphanumeric strings, i.e. a combination of letters (possibly also
in upper and lower case letters) and numeric characters, the course of action is different. Examples
for alphanumeric input fields are file names of screen shots (upper case and numeric characters
are permitted, see Chapter 10 ) and the input of cleartext names for the field instruments which are
used at the UMS (upper and lower case letters as well as numeric characters are allowed, see
In these cases, each character to be edited has to be selected in sequence via the arrow keys
(←,
→)
. The different characters possible can be generated by a multiple pressing of the keys of the
numeric keyboard. The labelling of the keys indicates which characters can be generated by which
key. The following characters can be generated as a maximum:
Key
Character
1
_ 1 + - . ! /
2
A B C a b c 2
3
D E F d e f 3
4
G H I g h i 4
5
J K L j k l 5
6
M N O m n o 6
7
P Q R S p q r s 7
8
T U V t u v 8
9
W X Y Z w x y z 9
0
Space character 0
A character of a string can be deleted by selecting the relevant position via the arrow keys and
pressing the key
0
once.
If the input is complete, the next input field or menu item can usually be selected by pressing the
ENTER
key. This means it is not necessary to press an arrow key several times to skip each
character of a longer character string. If you are satisfied with an input, it is possible to change right
to the next input parameter even from the middle of a character string.