Charles Industries 31929E User Manual
Page 5
Section 319-29E-202
5
+
-
7.5
7.5
XMT LBO
LOOPDOWN
CONTROL
MON
RPT
RCV
MON
RPT
XMT
DSX
PREĆEQ
SIGNAL
REGEN
LOS ALM
LIGHTWAVE
MULTIPLEXER
S3-1
DISABLE
NETWORK
SIGNAL
DETECTOR
NET LOS
LOOPBACK
CODE
DETECTOR
ESF
LB
CONTROL
LOGIC
LB
MLB
+
-
ASPR
0-96V
-48V
4K
PWR
LP
SC
BUFFER
AMP
-
RCV
+
XMT
SURGE
PROTECĆ
TION
SURGE
PROTECĆ
TION
AIS
GENERATOR
LB
LB
CPE
EQUIPMENT
CSU
NETWORK
INTERFACE
F
6
K
9
A
1
B
2
H
LOS
ALM
100
LB
10
8
FA
DISABLE
ENABLE
POWER
SUPPLY
LB
CUSTOMER
INTERFACE
SIGNAL
DETECTOR
FLASH = SENDING AIS
STEADY = CI LOS
CI LOS
STEADY = LOS
FLASH = AIS
DISABLE
AIS
S3-2
S1
5
GND
J
FRAĆ
MEGND
AIS
GENERATOR
FA
-BATT
S2
S4
Network
Side
DSX
CI
Side
Figure 4. 3192–9E T1 Powering NIU Block Diagram
DETECT SIGNAL PRESENT
CUSTOMER INTERFACE
IDLE
STATE 1
CI LOS
NOTIFI-
CATION
STATE 3
CI LOS
CUT-THRU
STATE 4
LOOPBACK
STATE 2
DETECT LOS FROM
CUSTOMER INTERFACE
RECEIVE
LOOPDOWN
SIGNAL FROM
NETWORK
RECEIVE LOOPUP SIGNAL
FROM NETWORK
RECEIVE LOOPUP SIGNAL
FROM NETWORK
DETECT SIGNAL PRESENT
CUSTOMER INTERFACE
20 MIN.
TIMEOUT
RECEIVE
LOOPDOWN
SIGNAL FROM
NETWORK
OR MLB
RECEIVE
LOOPUP SIG-
NAL FROM
NETWORK
OR MLB
Figure 5. 3192–9E Operational State Table