Brooks Firetracker FT420, Техническое руководство

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Technical Manual
FT420
– Iss 2.4
17
2.2 Main Control Board SUB880
The Main Control Board supports all the system controls and terminations. The field wiring for the
common FT420 outputs/inputs and the first 4 zone circuits are terminated on SUB880, refer to the
standard FT420 Block Wiring Diagram in Figure 39 page 76. The board layout is shown in Figure 2.
Figure 2 Main Control Board Layout (SUB880)
The board jumper settings and ancillary terminations are listed on Table 5 and Table 6 respectively.
Table 5 Main Control Board Jumper Settings
Designator Description
Jumper
Status
Function
Factory
Default
JP1, JP2
Alarm device
selection.
ON 24V output to control the electronic sounders Default
OFF Dry-contact output to control the speaker circuits
JP3
Microprocessor
reset
ON Set the system into reset state
OFF Release reset for normal operations Default