Acterna ANT-5 - Page 98

Optional software for the ANT-5
Page 98 Acterna ANT-5
The VT mapping function enables the testing of DS-1 and E1 tributaries mapped into
an STS-1 SPE via VT1.5 and VT2 SPE’s as shown in the following diagram. However,
this option also requires the SONET option BN 4565/00.62.
STS-1
STS-1
SPE
x3, x12
44736 DS3
34368 E3
kbit/s
STS-3c
STS-3c
SPE
139264 E4
kbit/s
x1
Mapping
Multiplexing
Aligning
Pointer
processing
599040
kbit/s*
1
STS-N STS-12c
x1, x4
x1
STS-12c
SPE
VT
Group
x7
VT2 VT2 SPE
2.048 E1
kbit/s*
2
x3
VT 1.5 VT 1.5 SPE
1.544 DS1
kbit/s*
2
x4
*
1
*
2
x1
STS-48c
STS-48c
SPE
2396160
kbit/s
VT mapping
option only
Concatenated
option only