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Figure 3-3 shows the format of the frame supported by the µPD98413.
12 bytes
...
A1 A1
Section
B1
...
overhead
3
...
D1
(SOH)
...
H1
H1
...
B2
B2
Line
...
D4
6
overhead
...
D7
(LOH)
...
D10
S1
Z1
...
Transport overhead (TOH) 36 bytes
38
CHAPTER 3 FUNCTIONAL OUTLINE
Figure 3-3. Format of Transmit Frame
12 bytes
...
...
A1
A2
A2
A2
J0
...
...
E1
F1
...
...
D2
D3
...
...
H1
H2
H2
H2
H3
...
...
B2
K1
K2
...
...
D5
D6
...
...
D8
D9
...
...
D11
D12
M1
Z1
Z2
Z2
Z2
E2
PRELIMINARY
1,080 bytes
12 bytes
...
Z0
Z0
...
Direction of transmission
...
...
H3
H3
J1
...
B3
...
C2
...
G1
Fixed
...
Fixed Stuff
F2
...
stuff
H4
3byte
Z3
Z4
Z5
Path overhead
(POH) 1 byte
1,044 bytes
ATM cell/POS packet
Payload
STS-12c SPE 1,043 bytes
NEC confidential and Proprietary
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