Integrated T1/E1/J1 Short-Haul and
Long-Haul Protection Switch
TRANSMIT PATH
LINE CARD 1
RT
TRING
LIU TX
RT
TTIP
PROTECTION SWITCHING CARD
NO3
COM3
1:1
NC3
U1
NO4
COM4
NC4
PROTECTION BUS
LINE CARD 2
RT
TRING
LIU TX
RT
TTIP
NO5
COM5
1:1
NC5
U1
NO6
COM6
NC6
LINE CARD 3
RT
TRING
LIU TX
RT
TTIP
NO5
COM5
1:1
NC5
U2
NO6
COM6
NC6
BACKUP LINE CARD
TTIP
LIU TX
TRING
Figure 8. Switching-Card-Architecture Transmit Path
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