Manual
DS3170 DS3/E3 Single-Chip Transceiver
40 of 233
Figure 7-6. Rx Line IO UNI Functional Timing Diagram
RLCLK
RDAT
RLVC
INC BPV COUNTER TWICE INC BPV COUNTER ONCE
7.3.2 DS3/E3 Framing Overhead Functional Timing
Figure 7-7 shows the relationship between the DS3 receive overhead port pins.
Figure 7-7. DS3 Framing Receive Overhead Port Timing
ROH
ROHSOF
ROHCLK
NA
FAS
10
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FAS
2
FAS
3
FAS
1
FAS
6
FAS
5
FAS
4
FAS
7
FAS
8
FAS
10
A
FAS
9
FAS
2
FAS
1
N
FAS
3
FAS
4
FAS
6
FAS
8
FAS
5
FAS
10
FAS
9
Figure 7-8
shows the relationship between the E3 G.751 receive overhead port pins.
Figure 7-8. E3 G.751 Framing Receive Overhead Port Timing
ROH
ROHSOF
ROHCLK
NA
FAS
10
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FAS
2
FAS
3
FAS
1
FAS
6
FAS
5
FAS
4
FAS
7
FAS
8
FAS
10
A
FAS
9
FAS
2
FAS
1
N
FAS
3
FAS
4
FAS
6
FAS
8
FAS
5
FAS
10
FAS
9
Figure 7-9
shows the relationship between the E3 G.832 receive overhead port pins.
Figure 7-9. E3 G.832 Framing Receive Overhead Port Timing
ROH
ROHSOF
ROHCLK
GC
8
GC
7
GC
6
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FA1
2
FA1
3
FA1
1
FA1
6
FA1
5
FA1
4
FA1
7
FA1
8
FA2
2
FA2
3
FA2
1
FA2
6
FA2
5
FA2
4
FA2
7
FA2
8
EM
2
EM
3
EM
1
EM
5
EM
4










