Toshiba Strata CTX670 - Page 213

ISDN Interfaces
RBUU/RBUS Interface Unit
Strata CTX I&M 10/02 5-25
ISDN Interfaces
Figure 5-21 RBUU PCB
Figure 5-22 RBUS Subassembly
Circuit 2
Circuit 1
Circuit 1
P10 P10
BSY
T S
LOS
F S
BSY
T S
LOS
F S
2799
RBUU1A
RJ45 Modular
for Circuit 1
Secondary
Protectors
RJ45 Modular
for Circuit 2
LED Indicators
RS-232C
Monitor Output
DIN
Connector
Circuit 2
J101 J201
P12 P13
RBUU1A
J3
Circuit 3
Circuit 3
Circuit 4
P13 P12
P11 P10
Circuit 4
BSY
T S
LOS
F S
BSY
T S
LOS
F S
F
2800
RBUS1A
LED Indicators
RJ45 Modular
for Circuit 3
RJ45 Modular
for Circuit 4
Secondary
Protectors
J401 J301
RBSU1A