PSU LED indications Write protect link on backplaneThe backplane assembly is fitted inside the left side of the backbox.The backplane has the card slots to facilitate interconnection of plug-in cards, such as the MainController Card (MCC), Loop Processor Cards, IO Cards and Network Cards.The backplane also has the flash memory(NVM) which is under the control of MCC andis a shared memory to which the systemconfiguration data is saved.The link header on the backplane markedLK1 provides 'write' protection and will stopthe SAVE and BACKUP commands from thepanel controls modifying the memory.Once the system is fully commissioned thelink LK1 should be configured to 'writeprotected', this is important on sites wherecustomers require compliance to the EN54Part 2 standard.The NVM should always hold the completesystem back up.4188-856_issue 7_07/15_Generic Vigilon (Compact + VA) Comms. 31Vigilon 4/6 loops & Compact (VA) panels & network nodesVigilon 4/6 loop PanelsLD1 LD2 LD3 LD4 LD5P7 P11Indicatescommunicatingwith MCCRibbon cableto Terminal Cardconnector P10Ribbon cable toBackplaneconnector P12Spade connectorfor 0V lead to printerP5LD1LD2 LD3 LD4 LD5Indicates Thermistor is O/C orS/C or 43V boost test has failed.RAM write/readtest failedROM checksum errorEEPROM checksum errorEEPROM stuck inbusy modeEEPROM reinitialisedEEPROM read doesnot match RAM copyThe above LEDs flash 1s on and 1s off.When a LED is ON it indicates an error.For more than one error the LEDs will flash in sequence.PSUERRORSteady indicationFlashing indicationLD1LD2LD3LD4LD5BackplaneProtected- write protectedLK1Unprotected- not write protected(factory setting)
