Page 89 - Optical Switching And Networking Handbook
P. 89
04_200023_CH03/Batesx 1/17/01 9:42 AM Page 74
74 Chapter 3
Figure 3-16
1
Single-step
interleaving into a
higher-speed STS-1s 2
multiplexer.
3
4
STS-1s 5
6
STS-12
7
STS-1s 8
9
10
STS-1s 11
12
cates that the payload is concatenated, not multiplexed, into three
different payloads. This means that a normal STS-3 carries three
separate STS-1 signals inside, as shown in Figure 3-14. However, in
a concatenated state, the total payload is one super rate multiplexed
signal at 155.52 Mbps instead of three smaller ones at 51.84 Mbps
each. This is shown in Figure 3-17.