
TB1-1,2
UlOlA
R105 U102A UlOlB
TB1-5,6
U201A R205
U202A U201B
Four
25k
U103B
U103A
U104A U105
T105 JlOl
U203B
U203A U204A U205
T205 J102
Nom
Two
JlOl SlOl
S
105 W103 TI05 U104 B
U106 U102C
5201 S201
S205 W203 T205
U204 B
U206 U202C
Wire
-+
Output
@=5
mA/volt
Optional
Trans-
former
Buffer
Filter Pir
-
Amp
-
Two
Figure
1-1
SSA324 Block Diagram System Interface (System
to
System Interface)
-
Buffed
Amplifer
11
dB
-
4
SSA324 User
Manual
Bilateral
Current
Source
wire
rFt%&TH-t
Input
-
Unbalanced Reference
Zin=lO k Switch Switch Jumper former
-
Nominal
-
Test Level From
[~~~l
rt4-wire
-
Null
Circuitry
Duck
Circuitry
Differential
Input
Buffer
Amplifier
-
-
Switch
Pickoff
-
RTS (2 Wire)-
Adjust
Amplifier
19
dB
Driver Transformer Output
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