Released
Datasheet
PM73487 QRT
PMC-Sierra, Inc.
PMC-980618
Issue 3
622 Mbps ATM Traffic Management Device
Figure 13 shows a 20 Gbps ATM switch composed of 32 port cards (32 QRTs) and 20 switch
cards (40 QSEs). By adding additional sets of a switch card and eight port cards in the same man-
ner, this system can scale up to 160 Gbps. .
622 Mbps
622 Mbps
622 Mbps
622 Mbps
622 Mbps
622 Mbps
622 Mbps
622 Mbps
Port Card #1
Rx Input
Port Card #1
Tx Output
Switch Card #17
Stage 1 QSE
Switch Card #17
Stage 3 QSE
Port Card #8
Rx Input
Port Card #8
Tx Output
x2
x2
Switch Card #1
Port Card #9
Rx Input
Port Card #9
Tx Output
Switch Card #18
Stage 1 QSE
Switch Card #18
Stage 3 QSE
Port Card #16
Rx Input
Port Card #16
Tx Output
x2
x2
622 Mbps
622 Mbps
622 Mbps
622 Mbps
622 Mbps
622 Mbps
622 Mbps
622 Mbps
Port Card #17
Rx Input
Port Card #17
Tx Output
Switch Card #19
Stage 3 QSE
Switch Card #19
Stage 1 QSE
Port Card #24
Rx Input
Port Card #24
Tx Output
x2
x2
Switch Card #2
Port Card #25
Rx Input
Port Card #25
Tx Output
Switch Card #20
Stage 3 QSE
Switch Card #20
Stage 1 QSE
Port Card #32
Rx Input
Port Card #32
Tx Output
x2
x2
Switch Card #16
Figure 13. 20 Gbps ATM Switch
.
13
PMC [ PMC-SIERRA, INC ]
