Hardware Interface
Line Interface
Centillion 1200N ATM Switch User Manual
6-9
NTP 297-8103-903
Figure 6-9: G.751 E3 Frame Format
Figure 6-10: G.832 (G.751) E3 PLCP Frame Format
J
FA S : F ram e align m e nt sig nal
R A I : A la rm indica tio n to the rem o te d igita l m ultiplex eq uipm e nt
N .U : B it reserved for na tio nal use
JS B : Justification se rvice bits
B TA J : B its from trib utaire a va ilable fo r justification
AT M C ell
AT M C ell
AT M C ell
AT M C ell
AT M C ell
AT M C ell
AT M C ell
A 1
A 1
A 1
A 1
A 1
A 1
A 1
A 1
A 1
A 2
A 2
A 2
A 2
A 2
A 2
A 2
A 2
A 2
Z 3
Z 2
Z 1
F 1
B 1
G 1
M 2 (1 )
M 1 (2 )
C 1
P 0
P 1
P 2
P 3
P 4
P 5
P 6
P 7
P 8
AT M C ell
L a st
AT M C ell
F irst
5 3 o cte ts
1
1
1
1
1 8 (1 7 ) to 2 0(2 1 ) o cte ts
Tra iler
1 2 5
s
A 1 ,A 2
P 0 -P 8
C 1
M 1 ,M 2
G 1
B 1
F 1
Z 1 -Z 3
:
:
:
:
:
:
:
:
fra m ing o cte ts.
p a th o ve rh e a d ide n fie r o cte t.
cycle stu ff c ou n te r.
D Q D B la ye r m a n a g e m e n t in fo rm a tio n oc te ts.
P L C P p a th sta tu s.
B it In te rle a ve d P a rity-8 (B IP -8 )
P L C P p a th u se r ch an n e l.
.
g ro w th o cte ts.
