Main/Standby Operation (1:1) R&S SU 4200
3.55 6125.0226.12.01
3.6.2 Behavior of the Main/Standby Configuration with Power
On
This chapter
Both radios have to be powered up. If there is no failure, the radios are
booting and will get into the following state: The radio configured as "Main"
has to indicate the "GO" and "VOP" LEDs and shows the status "ACT" on
the display, the radio CBIT status is "OK" (see Fig. 3.55
). The second radio
configured as "Standby" has to indicate the "GO" LED while the "VOP" LED
remains dark. In addition, the display shows the status "INACT" and the
CBIT status shows a warning (warning 101 INACTIVE W). The figures
below show the radios displays after booting (see Fig. 3.56). The second
radio is ready for main/standby switchover.
R&S SU 4200
example
S U 4 2 0 0
2
1
:
0
4
:
1
3
D E V I C E
1
M
A
I
N
A
M
1
1
9
.
1
2
5
C
T
C B I T S
T
A
T
U
S
:
O
K
Fig. 3.55 Active device 1
S U 4 2 0 0
2
1
:
0
4
:
1
3
D E V I C E
2
S
T
A
N
D
B
Y
A
M
1
1
9
.
1
2
5
I
N
C
T
C B I T S
T
A
T
U
S
:
W
A
R
N
I
N
G
1 0 1 I N
A
C
T
I
V
E
W
Fig. 3.56 Inactive device 2
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