NEC PASOLINK Training Course page 25

ROI-S04488
From/To FIG. 2-2 (4/4)
From/To FIG. 2-2 (2/4)
TX 1 ALM
a
From/To FIG. 2-2 (2/4)
RX 1 ALM
b
To FIG. 2-2 (1/4)
c
To FIG. 2-2 (4/4)
INTERFACE TERMINAL
From FIG. 2-2 (4/4)
From/To FIG. 2-2 (2/4)
TX 2 ALM
d
From/To FIG. 2-2 (2/4)
RX 2 ALM
e
From/To FIG. 2-2 (1/4)
f
TX SW CTRL
5
FE LB CTRL R 1-4
FE LB ANS R 1-4
INPUT LOSS 1-4
AIS RCVD 1-4
NE LB ANS 1-4
TX IN CLK LOSS
INTFC SERIAL
RX IN CLK LOSS
F S/P
OUTPUT LOSS 1-4
AIS SEND 1-4
DEM ALM
L BER ALM
H BER ALM
BER ALM
J
F SYNC ALM
I
DATA UP
A
DATA DOWN
B
CPU CLK
C
TX DPU ALM
D
DEM ALM
H
MOD ALM
E
DPU SERIAL
G
FE LB CTRL
SERIAL DATA
P/S NE LB CTRL
r
CONV
MAIN BOARD 1 SERIAL
LA
PORT
NMS/RA
TX SW CTRL
5
INTFC SERIAL
P
BER ALM
T
F SYNC ALM
S
DATA UP
K
DATA DOWN
L
CPU CLK
M
TX DPU ALM
N
DEM ALM
R
MOD ALM
O
DPU SERIAL
Q
SERIAL DATA
r
MAIN BOARD 2 SERIAL
Fig. 2-2 Functional Block Diagram of IDU in 1+1 System (3/4)
ALM CTRL (No. 1 CH)
TX PWR ALM
RX LEV ALM
ODU
APC 1 ALM
SERIAL
S-P
CONV
APC 2 ALM
IF INPUT ALM
DPU
SERIAL
P/S
CONV
INPUT LOSS 1-16
AIS RCVD 1-4
TX IN CLK LOSS
DPU
RX IN CLK LOSS
SERIAL
S-P
OUTPUT LOSS 1-16
CONV
DEM ALM
L BER ALM
CPU
H BER ALM
CPU ALM
FE LB CTRL 1-16
MOD CW
S-P
NE LB CTRL 1-16
CONV
AIS CTRL 1-16
S/P
CONV
RESET
PHOTOCOUPLERs
CPU
RELAYs
PM CARD*
ALM CTRL (No. 2 CH)
(SAME AS ABOVE)
P/S CONV
HOUSEKEEPING
INPUT
HOUSEKEEPING
OUTPUT
FUNCTIONAL OPERATION
ODU
IDU
MAINT
ODU
IDU
MAINT
2-13/14