Clear-Com PS-702 - Manual (Page 19)

P S - 7 0 2 T W O - C H A N N E L P O W E R S U P P L Y
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
P ower S upply
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
Microproces s or
Overload
C hannel
A
Overload
C hannel
B
Filter
440 Hz
A + B
Link
T es t T one
On / Off
B
S end
Levels
A
C hannel
B
C hannel
A
P rogram
On / Off
A
B
IEC
P ower
Inlet
On/Off
T es t
J ack
C hannel A – B
S elect