NEC 2400IMX system manual PA-PC56-A Copy

Models: 2400IMX

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PA-PC56-A (COPY)

PA-PC56-A (COPY)

1.Function

This circuit card provides the function to copy the contents of the RAM of both the standby (ST-Y) system and the active (ACT) system so that the contents of the RAM of both system may be always coinciding with each other.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IOC

 

 

CPU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(ACDP)

 

RS-232C (Non-protocol)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COPY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CRAM

APM

ALMC

CPU

(ACDP)

COPY

CRAM

Position within the system

2.Mounting Location/Condition

The mounting locations of this circuit card and the conditions related to mounting are shown below.

Mounting Module

APM

00

01

02

03

04

05

06

07

08

09

10

11

12

13

14

15

16

17

18

19

20

21

22

23

 

 

 

 

 

 

 

 

PA-PC56-

 

 

 

 

 

 

 

 

PA-PC56-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

 

 

 

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

For No.0 system

For No.1 system

This circuit card is not used when the ACDP is provided in a single-system configuration.

CHAPTER 4

NDA-24282

Page 68

Revision 1.0

Page 87
Image 87
NEC 2400IMX system manual PA-PC56-A Copy