PR 5725 - Block Diagram; System Architecture Overview

5725V101-IN 15
I+
21
22
23
11
12
31
32
24
25
26
CPU
EEPROM
5725A & D
1 2 3 4
44
46
45
43
42
41
R1
R2
mA
VREG
5...17 V
BLOCK DIAGRAM
I
Output
Common
Relay 1 N.O.
Relay 1 N.C.
Common
Relay 2 N.O.
Relay 2 N.C.
Supply
Supply
21.6...253 VAC
or
19.2...300 VDC
Option D
Gnd.
Option D
f
in
Freq.
detector