Clear-Com PS-702 - PS-702 Block Diagram

PS-702 TWO-CHANNEL POWER SUPPLY
3-3
PS-702 BLOCK DIAGRAM
The following is a block diagram of the PS-702:
Figure 3-3: PS-702 Block Diagram
PS-702
Voltage
Regulator
Power
Program
Trim
S witching
Power Supply
Module
Program
Input
Channel A
Power
Controller
Channel A
Voltage
Sensor
Channel A
Current
Sensor
Channel B
Power
Controller
Channel B
Voltage
Sensor
Channel B
Current
Sensor
Ch B
Term
Ch A
Term
Microprocessor
Overload
Channel
A
Overload
Channel
B
Filter
440 Hz
A + B
Link
Test Tone
On / Off
B
Send
Levels
A
Channel
B
Channel
A
Program
On / Off
A
B
IEC
Power
Inlet
On/Off
Test
Jack
Channel A – B
Select