M3SR Series 4100 Control Unit MTC 3/4 (4003)
3.118 Operating Manual 6175.4760.02 – 01
Table 3.33 Softkeys in Menu CU MTC 3/4
Softkey Description Possible Values
Navigate to the previous menu (CU MTC 2/4, see 
sect. 3.5.2 Control Unit MTC 2/4 (4002)).
Press this softkey to mark the selected radio in the Radio 
IP Address List as local. The local radio is marked with the 
symbol
To unmark a radio select the marked radio with the knob 
and press this softkey.
Only one radio can be marked as local. If the Radio IP 
Address List is empty or the selected line is empty or 
the selected line contains the address the CU is cur-
rently connected to, this softkey is disabled.
Press this softkey to edit the selected entry in the Radio IP 
Address List.
Two steps are necessary for editing an entry:
1. After pressing this softkey an editor comes up to edit 
the logical address of the selected radio. Edit the logi-
cal address with the numeric keypad or the knob and 
press 'ENT' to confirm.
2. After pressing 'ENT' another editor comes up to edit 
the IP address. Use the knob or the numeric keypad to 
edit each of the four digits of the address separately. 
To select the next number press the key and then 
press 'ENT' to confirm
Logical Address:
up to eight characters
IP Address:
0.0.0.0 to 255.255.255.255
If the Radio IP Address List is empty or the selected 
line is empty or the selected line contains the address 
the CU is currently connected to, this softkey is dis-
abled.
Press this softkey to delete the selected entry in the Radio 
IP Address List.
If the Radio IP Address List is empty or the selected 
line is empty, this softkey is disabled.