FAULT REPAIR PROCEDURES

IMG0

PIM 3

MUX MUX

LC/TRK LC/TRK LC/TRK

PIM 2

 

MUX

MUX

LC/TRK LC/TRK LC/TRK

PIM 1

 

MUX

MUX

LC/TRK LC/TRK LC/TRK

PIM 0

 

MUX

MUX

LC/TRK

LC/TRK LC/TRK

IMG1

PIM 3

MUX MUX

LC/TRK LC/TRK LC/TRK

PIM 2

MUX MUX

LC/TRK LC/TRK LC/TRK

PIM 1

MUX MUX

LC/TRK LC/TRK LC/TRK

PIM 0

MUX MUX

LC/TRK LC/TRK LC/TRK

LVDS (Low Voltage Differential Signaling) To IMG2 To IMG2 To IMG3 To IMG3

TSWM

Symbols

TSW 00

MUX 003

MUX 002

MUX 001

MUX 000

TSW/INT

TSW 10

MUX 100

MUX 101

MUX 102

MUX 103

TSW/INT

TSW 01

MUX 013

MUX 012

MUX 011

MUX 010

TSW/INT

TSW 11

MUX 110

MUX 111

MUX 112

MUX 113

TSW/INT

TSW/

TSW/

TSW/

TSW/

INT

INT

INT

INT

TSW

TSW

TSW

TSW

02

12

03

13

:

Speech Path

 

 

 

 

 

:

Cable

 

 

 

 

 

 

 

 

:

Circuit Card (active)

 

 

 

 

:

Circuit Card (STBY)

 

 

 

TSW: PH-SW12

MUX: PH-PC36

Figure 5-8 Speech Path Block Diagram

NDA-24300CHAPTER 5

Page 347

Issue 1

Page 374
Image 374
NEC NDA-24300 manual Speech Path Block Diagram