Panasonic 1200N manual Sonet OC3/SDH STM-1 Frame Format, Sonet OC-3/SDH STM-1 Frame Format

Hardware Interface Line Interface

SONET OC3/SDH STM-1 Frame Format

■For public network UNI and private network UNI/NNI

■Physical layer: SONET PMD

■Optical fiber (multi mode/single mode), UTP5

■Line coding: NRZ

■Data rate/line rate: 155.52 Mbps

■Cell rate: 155.52 × 260/270 = 149.76 Mbps

27 0 B ytes

A 1

A 1

A 1

A 2

A 2

A 2

C 1

C 1

C 1

B 1

E 1

F 1

D 1

D 2

D 3

J1

P ath Trace

A U -4 po inter

B 3

B IP -8

9 B ytes

B 2

B 2

B 2

K 1

K 2

C 2

P ath Iden tifier

D 4

D 5

D 6

G 1

E rror R epo rt

D 7

D 8

D 9

F 2

U ser C hann el

D 10

D 11

D 12

H 4

H eader C ell In dicato r

Z 1

Z 1

Z 1

Z 2

Z 2

Z 2

E 2

Z 3

R eserv ed

Z 4

R eserv ed

Z 5

R eserv ed

A 1,A 2

:F ram e alignm en t

A 1

:B its activ e in U N I

B 1

:B IP -8

B 2

:B IP -24

C 1

:S T M

fram e identification

D 1 -D 1 2 :D ata co m m u nicatio n ch an nel

E 1 ,E 2

:O rd er w ire

F 1

:U ser ch annel

K 1

:C hang e-ov er co ntro l

K 2

:C hang e-ov er co ntro l,A IS /R D I

Z 1

:R eserv ed

Z 2

:F E B E

Figure 6-3: SONET OC-3/SDH STM-1 Frame Format

Centillion 1200N ATM Switch User Manual	6-3
NTP 297-8103-903