ISDN Interfaces

RBUU/RBUS Interface Unit

 

 

RBUU1A

Secondary

 

 

Protectors

P12

P13

 

Circuit 1

 

RJ45 Modular

J101

 

for Circuit 1

 

 

 

RJ45 Modular

J201

 

for Circuit 2

 

 

Circuit 2

 

 

BSY

 

 

T S

 

 

LOS

 

LED Indicators

F S

 

Circuit 1

 

 

BSY

 

 

T S

 

 

LOS

 

 

F S

 

 

Circuit 2

 

RS-232C

 

 

 

 

 

J3

 

 

 

 

 

 

 

 

 

Monitor Output

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P10

P10

RBUU1A

2799

Figure 7-23 RBUU PCB

DIN Connector

RBUS1A

P13P12

Circuit 3

BSY

T S

LOS

F S

Circuit 4 LED Indicators

BSY

T S

LOS

F S

Circuit 3

J301

RBSU1A

Circuit 4

J401

P11

P10

F

2800

RJ45 Modular for Circuit 3

RJ45 Modular for Circuit 4

Secondary Protectors

Figure 7-24 RBUS Subassembly

7-28

Strata CTX I&M 06/04

Page 294
Image 294
Toshiba CTX28 manual Rbuu PCB