NEC PASOLINK Training Course page 21

ROI-S04488
a
b
c
d
CONV
e
f
g
h
PLS MON
TX FPLS
w
TX CLK
x
z
EOW
INTERFACE
TERMINAL
WS/SC LAN INTFC*
WS
B-U CONV
IN/OUT U-B CONV
(RJ45)
SERIAL ALM
q
From/To
FIG. 2-1 (1/3)
F SYNC ALM
s
AIS CTRL
y
SERIAL DATA
r
LAN INTFC*
PORT1
10BASE-T/ Ethernet SW
100BASE-TX SPEED CONV
PORT2
RX FPLS
v
16M CLK
t
RX CLK
u
i
j
k
l
m CONV
n
o
p
OW/DSC/ASC
ASC/DSC/ALM INTFC
IN
A-D CONV/LEV CONV
OUT
DSC/64K/
ASC/EOW
IN
OUT
64K/SC LAN INTFC*
INTERFACE
TERMINAL
DPU
P-S
SCRB
DIF DIG
MUX
ENC FIL
PARITY
CHECK
TIM PLS
GEN MON
MST
PCM
CLK
CODEC
MON
EOW
H
OUT
EOW IN
BER
DET
TIM
F SYNC
GEN
S-P
DEMUX
DIF
DSCRB
DEC
B-U CONV
U-B CONV
D-A
CONV
4PH
MOD
D-A
CONV
VCO
DEM
A-D
CONV
4 PH
DEM
A-D
CONV
70 MHz
Fig. 2-1 Functional Block Diagram of IDU (2/3)
MOD
MOD
DEM
EOW
DEM
EOW
−43 V DC MOD
VCO
450 kHz
MUX ALM 1-4
L BER ALM
P-S
H BER ALM
CONV
F SYNC ALM
BER ALM
MOD CW
AIS CTRL OFF
S-P
CONV
BER THRESHOLD
FRAME ID
Note: * Optional.
FUNCTIONAL OPERATION
IF IN/OUT
DATA UP
A
DATA DOWN
B
CPU CLK
C
TX DPU ALM
D
MOD ALM
E
From/To
FIG. 2-1 (3/3)
F
G
F SYNC ALM
H
BER ALM
I
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