LR900 Node
Hardware Installation and User Guide
9000-0000-126 Revision 01
18 of 21
Genave Electronics
Inputs
Input Header Characteristics
The inputs for the LR900 are used to trigger actions and transmissions. When an input is
pulled low (shorted to pin 9 of J9) the LR900 turns on the associated output for 2 seconds
(Input 1 turns on Output 1).
Some features of the inputs:
1) DO NOT apply any voltage to the inputs. Only connect an input to pin 9 of J1.
Although the inputs have diodes to protect them from incoming voltages, they
should only be pulled low.
2) The inputs are protected from moderate voltage spike. Large voltage spikes will
overwhelm the input protection and damage the processor. Therefore keep
wires leading to the inputs as short as possible and twist the wires to reduce
voltage spikes.
3) Node Inputs are normally not transmitted to other Nodes (See Advanced
Information).
4) If an input is retriggered within 2 seconds, the associated output will not be
turned off.
5) Each input has a pull up resistor of 470 Ohms.
Input Header Pinout
