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6 ground fault detection enable/disable jumper – SilentKnight 5499 9A Distributed Power Module User Manual

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Installation

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Class B Supervised Input Circuits

Figure 4-5 shows Class B supervised wiring from a fire alarm control panel to the
5499.

Use an EOL resistor as shown to enable notification appliance circuit input
supervision. Some panels use EOLs that have a different value from the 4.7k ohm
EOL resistor used by the 5499. In this case, the EOL must be UL listed for the fire
alarm control panel (not the 5499).

Figure 4-5 Class B Supervised Input/Output Connections

4.6

Ground Fault Detection Enable/Disable Jumper

In some cases the ground fault detection feature on the 5499 may interfere with the
ground fault detection feature of the main control panel in the system. To disable the
ground fault detection feature on the 5499, place the jumper block on J1, across Pins
1 and 2 (see Figure 4-2).