Simplex 2120 - System Wiring and Cabinet Interconnections; System Interconnection Diagrams

SET YOUR VOY TO THE SODCV
SCALE AND CONNECT lT
BETWEEN TBl-13 (+)
ON THE POWER CONVERTER
BOARD AND THE CABINET.
(SEE ILLUSTRATION FOR
REFERENCE1
LEVEL GREATER LEVEL GREATER
t
YOU HAVE A GROUND
ON THE OV (DC
RETURN) SIDE OF THE
POWER SUPPLY
LOCATE ANY FlRE ALARM rli ANY FIRE ALARM
DIGITAL l/O BOARDS y!G!mfL l/O BOARDS
IN THE ET (SEE NOTE) ET (SEE NOTE)
LEVEL LESS THAN
I
YES
YOU HAVE A GROUND
ON THE 28VDC SIDE
OF THE POWER
SUPPLY
OF THESE I/O
BOARDS IN THE ET
NO
I
t
FIG.
FIG.
SE
SD
NOTE
There are two types of fire alarm digital monitor I/O
boards:
l 562-466 (Class A version)
l 562-505 (Standard version)
I
POWER CONVERTER
I
BOARD, TBl SHOWN TBl-13
GROUND FAULT Trouble
FIGURE 58
REPLACE POWER
SUPPLY BOARD
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