11
Installation • Changing Jumper Options
2.3.8 Power-up
Now that all alarm and communications wiring is complete, power up the unit by installing the fuse in the back
panel.
2.3.7.1 Changing Jumper Options
You can change the settings for analog alarm inputs and control relays by resetting the jumpers on the
NetGuardian's circuit board. To open the unit and expose the circuit board, remove the screws from the top of the
NetGuardian and lift the top cover off. Figure 2.3.7.1 shows the circuit board and the location of the adjustable
jumpers.
By default, all the adjustable jumpers are open, except for the speaker jumper. For control relay jumpers, the open
position corresponds to normally open operation, and the closed position corresponds to normally closed operation.
Fig. 2.3.7.1 -
Control Relays on the NetGuardian DX circuit board
Summary of Contents for D-PC-293-10A
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