Ronan XSD-1000 - Manual (Page 59)

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No Remote I/O Modules Found
Normally when starting the XSD-1000 System, the System Status bar reads ‘Verifying
Connected I/O Modules’ for a few seconds, then starts the ‘Power Up Stabilization’. If
during the initial verification function, the system cannot locate any Remote I/O
Modules, a large orange button appears and asks you to check the modules and cabling,
then click the orange button to restart.
• Check the voltage on TB-2 terminals 4 & 5 on the bottom of the Monitor Panel. It
should read between 4.75 VDC and 5.25 VDC. If not, remove the wire from pins 4 &
5, and recheck the voltage at the terminals. If the voltage is between 4.75 VDC and
5.25 VDC, check the cable for a short or miswiring (see diagram below). Click on
the large orange button on the screen, and verify that the green LED on the bottom of
the Monitor Panel is flashing while the “Verifying Connected I/O Modules” status is
displayed. If not, disconnect the Remote I/O Cable from TB-2 terminals 2 & 3 and
re-check the green LED (you will probably have to click on the Orange ‘Restart’
button on the screen). If the LED is then flashing, there is a short in the Remote I/O
Cable, an open wire in the Cable, is miswired, or there is a problem in the Remote I/O
Enclosure. If the LED is still not flashing, replace the Communications board in the
Montor Panel.
• The following wiring diagram illustrates the correct wiring between the Monitor
Panel and the Remote I/O Enclosure: