Obviously care and caution needs to be taken installing the NX584E. Manual doesn’t mention anything about switching the unit off whilst installing these cables, you don’t need to power off your alarm to connect these wires. Installing the NX584E with the alarm controller board is relatively easy, 3 wires need to be connected POS, COM and DAT which connect to the respective same pins used for the alarm keypads and marked KP POS/KP COM/ KP DATA. The wiring from your host to the NX584 uses three pins on a DB9 connector, pins 2, 3 and 5. This is a 99% sure way to confirm your serial port TX & RX pins on your host are working. Short pins 2&3 of the DB9 connector, anything you type (TX) in minicom will be echo back (RX) to you. Select the relevant serial port /dev/ttyUSB0, set both hardware and software flow control to no and baudrate to 9600. Once the USB to serial converter is plugged in, install and fire up minicom. Simplest method to interface with the NX584E use a standard USB to serial converter. NX584E uses true RS232 levels (transmits with +/-12V signal leves) and RP3 GPIO are 3.3V. Worth noting you can’t use the on board GPIO serial of the RP3, these pins are 0-3V input levers and potentially damaging your RP3 if you connect the NX584E comms to these GPIO pins. Thought I share my experience in interfacing with the NX584E with HA and save someone time and pain to configure/ troubleshooting the installation process.įirst part of the step is checking your serial port on your Raspberry or equivalent host port is working.
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