SYSTEM OPERATIONS

To perform the ACT/STBY system changeover, check the lamp indicators shown in Figure 6-38, and then operate the related key.

Note 1: LED indications cited in Figure 6-38are only an example. The indicating pattern (ON/Flash/OFF) can differ, depending on each system setting.

Note 2: STATUS 7-seg. LED provides information on ACT/STBY status of the belonging CPU. For details on the LED’s checking method, refer Figure 6-41.

TOPU

System State

IMG0

CPU 0 -> ACT

TSW 0 -> ACT

PIM3

PIM2

FANU

13

14

MUX ACT

 

 

 

 

 

 

 

 

MUX(PH-PC36)

MUX(PH-PC36)

13

14

MUX ACT

 

 

 

 

 

 

 

 

MUX(PH-PC36)

MUX(PH-PC36)

MUX

MUX ACT

MB

FRONT

PIM1

13

14

MUX ACT

 

 

 

 

 

 

 

 

 

MUX(PH-PC36)

MUX(PH-PC36)

 

 

 

 

 

 

 

13

14

MUX ACT

 

 

 

 

 

 

 

PIM0

LPM

BASEU

DSP 1 (PZ-DK224)

03

04

 

.....

OPEOPE/MB

IOC(PH-IO24)

EMA (PH-PC49)

 

.....

MUX(PH-PC36)

MUX(PH-PC36)

DSP 0 (PZ-DK224)

PZ-DK224

MBR

CPUOPE WDT

IMG0

 

IMG1

IMG2

IMG3

1 2 3 4

 

STATUS

 

OFF

 

 

 

 

 

 

Note 2

 

 

 

 

 

 

 

1

2

3

4

5

6

7

8

OFF

6

E

1 2 3 4 5 6 7 8

FRONT VIEW

OFF

FRONT

Legend

: Lamp is ON

: Lamp is Flashing

: Lamp is OFF

Figure 6-38 How to Check LEDs and SW Keys for System Changeover (IMG0)

NDA-24300CHAPTER 6

Page 457

Issue 1

Page 484
Image 484
NEC NDA-24300 manual How to Check LEDs and SW Keys for System Changeover IMG0