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PS-702
Clear-Com PS-702 User Manual
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PS-702 TWO-CHANNEL POWER SUPPLY
3-3
PS-702 BLOCK DIAGRAM
The following is a block diagram of the
PS-702:
Figur
e 3-3: PS-702 Block Diagram
PS-702
Voltage
Regulator
Power
Program
Trim
S
w
itc
h
in
g
Po
w
e
r
S
u
p
p
l
y
Mo
d
ul
e
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
Mi
cr
o
p
ro
ce
s
s
o
r
Ov
e
r
l
o
ad
Ch
a
n
n
e
l
A
Ov
e
r
l
o
ad
Ch
a
n
n
e
l
B
Filter
440 Hz
A +
B
Li
n
k
Te
st
To
n
e
On
/
Of
f
B
Se
n
d
Le
v
e
l
s
A
Ch
a
n
n
e
l
B
Ch
a
n
n
e
l
A
Pr
o
g
r
a
m
On
/
Of
f
A
B
IE
C
Po
w
e
r
In
l
et
On
/
Of
f
Te
st
Ja
c
k
C
h
an
ne
l
A
–
B
Se
l
e
c
t
18
20
Table of Contents
Default Chapter
3
Table of Contents
3
Important Safety Instructions
5
Operation
7
Introduction
7
Description
7
Fail Safe Power
7
Front and Rear Panels
10
Front Panel
10
Rear Panel
11
Installation
13
Quick Start
13
Intercom Line Connection
13
Line Termination (Rear Panel)
14
Program Input (Rear Panel)
14
Rack Mounting
14
System Checkout
15
Check Termination
15
Check Intercom Cable Resistance
15
Final Tests
16
Maintenance
17
Introduction
17
Troubleshooting Tips
17
PS-702 Block Diagram
19
Technical Specifications
21
PS-702 Two-Channel Power Supply
21
Rear Panel Connectors
22
Rear Panel Controls
22
Glossary
23
Limited Warranty
25
Warranty Period
25
Technical Support
25
Warranty Repairs and Returns
26
Non-Warranty Repairs and Returns
27
Extended Warranty
27
Service Contract
27
Liability
27
4
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Clear-Com PS-702 Specifications
General
Brand
Clear-Com
Model
PS-702
Category
Power Supply
Language
English
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