Initial Power up Guide
1. Ensure all I/O and supply connections have been completed and checked before proceeding.
2. Check all the DIL switches next to the LED’s are OFF (Towards Left side of the PCB)
3. Ensure 110/240V switch is selected correctly. Switch the mains supply on and connect the battery
leads, the unit will now start its power up sequence.
4. Observe the LED’s toward the centre of the PCB.
Green PWR LED should be illuminated indicating the presence of the system 5V.
Green WDOG LED will flash rapidly for 5 seconds upon power up whilst the unit checks for bootable
code. The LED will then blink every four seconds indicating a healthy heartbeat.
Red TX & RX LED’s will strobe whilst either the PSTN or GSM modem is set-up.
Green DCD LED will illuminate whilst PSTN or GSM modems are connected with a remote modem.
After power up and boot code is loading (WDOG LED flashing rapidly for 5 seconds) the display will
show the Multiform Start-up banner followed by the Site Name, time & date (This may be corrupt if no
configuration is loaded).
Communications with either a GSM or PSTN modem is checked. If no modem is found the unit will
display “Modem Error” for 5 seconds then revert to standard I/O display.
If a GSM modem is found the display will show “Searching” followed by “Registered” then again revert
to I/O display
A PSTN modem will show “Connected” followed by the I/O display.
The top line of the display indicates digital inputs 1-16 followed by the Mains & Battery status. The
bottom line displays scaled Analogue Input values scrolling every 4 seconds.
For Extended I/O units the second bank of 16 digital inputs is displayed (alternately with bank 1) every 4
seconds, with ‘#2’ being shown after the digital inputs to indicate the second bank. i.e. Inputs 17-32
The normal state for both Mains & Battery is indicated by a “1”, with Battery status followed by Mains.
Note: There is a small time delay of 4 seconds for the mains failed flag to change on power failure due
to voltage within the reservoir capacitor.
