User's Manual

NDA-24300 CHAPTER 6
Page 463
Issue 1
SYSTEM OPERATIONS
12.1.3 Manual System Changeover of CPU
To change over the CPU system, the CMOD command is normally used. However, if the command
cannot be used for some reason, use the key operations listed below:
Note:
For system changeover via the command, see Chapter 8.
STEP 1 Determine which CPU is active.
(1) Check the lamp indications. Refer to Figure 6-43 and Table 6-8.
Figure 6-43 CPU in ACT/STBY Mode
The CPU changeover also affects the ACT/STBY of GT in the TSWM. Refer to Figure 6-44
for more information, also check the lamp indications on the GT (PH-GT09) card.
Figure 6-44 GT in ACT/STBY Mode
Improper key operations may result in a system down. Operate the related keys, applying
extreme care.
WARNING
Legend
Lamp is ON
:
Lamp is OFF
:
Lamp is Flashing
:
Active
IMG1 IMG2
STATUS
STATUS
IMG3
CPUOPE WDT IMG0
MBR
ST-BY
IMG1 IMG2 IMG3
CPUOPE WDT IMG0
MBR
DSP (Front View)
1
2
3
4
5
6
7
8
OFF
1
2
3
4
OFF
1
2
3
4
5
6
7
8
OFF
1
2
3
4
5
6
7
8
OFF
1
2
3
4
OFF
1
2
3
4
5
6
7
8
OFF
4
C
0
2
6
A
E
4
C
0
2
6
A
E
MB
MBR
OPE/MB
GT: Active
green
Legend
FRONT VIEW
GT (PH-GT09)
GT: ST-BY
MB
MBR
OPE/MB
Lamp is ON
:
Lamp is OFF
: