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342-86400-445PS
Issue
4.0
October
2006
Page
21
Copyright
GE Multilin Inc. 2002
FEED
BACK
BLOCK DIAGRAM
2W FXS/PLAR UNIT
86445-31
ACK
J1
U5
XC3042
PLGA
2W FXS/PLAR
U2
TEMP
SENSOR
5V
TO SHELF
POWER BUS
TO SHELF JVT BUS
NOTE: REFER TO EAS-86445-31 FOR COMPLETE SCHEMATIC.
U4
C.I.
39
44
Y1
J1
CLOCK
IN
RCV
IN
XMT
OUT
U15
CODEC, FILTER,
HYBRID, BALANCING
18
10
28
2
U1
DC/DC
U2
RING
GENERATOR
U14 (SLIC)
SUBSCRIBER LINE INTERFACE CIRCUIT
32
20
19
27
25
+5V
1
43
41
24
22
2
5
4
3
2
+5V
4
86445-04 SUB-BOARD
MICRO
68HC11
U12
087-86445-03 ASSEMBLY
C15
56
U4
U16
A15
C16 A16
C14 A14
U7
U8
U9
57
59
A2 C2 C4 C7
A3 A4
TIP
RING
RINGING
VOLTAGE
RINGING
CONTROL
BATT-
BATT+
GND
8
7
6
5
4
3
2
1
TB1
GE Multilin
GND
BUSY
ALARM
FEED
BACK
BLOCK DIAGRAM
2W FXS/PLAR UNIT
86445-31
ACK
J1
U5
XC3042
PLGA
2W FXS/PLAR
U2
TEMP
SENSOR
5V
TO SHELF
POWER BUS
TO SHELF JVT BUS
NOTE: REFER TO EAS-86445-31 FOR COMPLETE SCHEMATIC.
U4
C.I.
39
44
Y1
J1
CLOCK
IN
RCV
IN
XMT
OUT
U15
CODEC, FILTER,
HYBRID, BALANCING
18
10
28
2
U1
DC/DC
U2
RING
GENERATOR
U14 (SLIC)
SUBSCRIBER LINE INTERFACE CIRCUIT
32
20
19
27
25
+5V
1
43
41
24
22
2
5
4
3
2
+5V
4
86445-04 SUB-BOARD
MICRO
68HC11
U12
087-86445-03 ASSEMBLY
C15
56
U4
U16
A15
C16 A16
C14 A14
U7
U8
U9
57
59
A2 C2 C4 C7
A3 A4
TIP
RING
RINGING
VOLTAGE
RINGING
CONTROL
BATT-
BATT+
GND
8
7
6
5
4
3
2
1
TB1
GE Multilin
GND
BUSY
ALARM
Figure 2:
86445-31 2W FXS Unit Block Diagram