Figure 112. Power Supply Filter Unit Block Diagram - Alcatel 1850 TSS-320 Technical Handbook

T3/T6
2Mbit/s / 2 MHz
T4/T5
TERMINATION
OSC
+ VBATT
INPUT
- VBATT
FILTER
POW320
Alcatel 1850 TSS-320 Rel. 1.1
174/270 8DG 07734 AAAA Edition 01
Synch.
VOLTAGE
SENSOR
POWER
MONITORING
LOSS OF
BATTERY
DETECTOR
INPUT
POWER
STAGE
DC/DC
CONVERTER

Figure 112. Power Supply Filter Unit block diagram

OVER VOLTAGE
OVER CURRENT
CURRENT
SENSOR PROTECTION
FUSE BROKEN
DETECTOR
Bat. Fail
Status
SPIDER
Sources
Remote
Inventory
MISSING &
Fuse Broken
Batt. Alarms
Bat. Fail
management
DC/DC
CONVERTER
5.3 v
5.3 V from POW320_B
STEP-DOWN
CONVERTER
DC/DC
CONVERTER
Technical Handbook Common
+ VBATT
&
- VBATT
Fuse Broken
Bat. Fail
Fuse Broken
SPI_A
SPI_B
Slot
Id.
1
CARD
N
Serial I/F
3.6 V
3.3 V
to internal
circuits
9 V
Unit Descriptions