Data Sheet
June 2002
TMXF28155 Supermapper
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
17 TMUX Functional Description (continued)
The following block diagram describes the receive side transport overhead functions. Data is received from the
high-speed interface at 155 Mbits/s (51.84 Mbits/s for STS-1 mode) and the output is driven onto the low-speed
telecom bus in a parallel format. The TOH receive side functional blocks are shown in Figure 26.
RECEIVE DATA
FRAME
ALIGN
DESCR-
AMBLER
K1
K2
J0
F1
B2
B2
BIP N
CHECK
K2
M1
S1
K1/K2
APS
MONITOR
AIS-L
RDI-L
DETECT
OOF
LOF
MONITOR
M1
REI-L
DETECT
SYNC
STATUS
MONITOR
LOS
DETECTOR
J0
MONITOR
F1
MONITOR
INPUT
MONITOR
B1
BIP-8
CHECK
M1
B1
TOAC
DROP
H1, H2, H3
MONITOR
REI
COUNTER
BER
ALGORITHM
POINTER
INTERPRETER
INSERT
AIS-P
F2
F2
F3
F3
C2
J1
N1
B3
K3
G1
G1
K3
G1
RDI-P
DETECT
G1
REI-L
DETECT
B3
BIP N
CHECK
C2
MONITOR
J1
MONITOR
TELECOM BUS
N1
MONITOR
APS
MONITOR
MONITOR MONITOR
G1
BER
ALGORITHM
POAC
DROP
REI
COUNTER
5-9006(F)r.2
Figure 26. Receive Direction Functional Block Diagram
Agere Systems Inc.
373
ETC [ ETC ]
