LED DC output goes out when EL activated

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The following items may cause the  PS900 series power supply to have no DC output voltage. 1. If  the DC voltage selection jumper is missing, the power supply will not provide any D...
Following items could cause the DC output on PS914 series power supply to drop when access control is activated. Wrong gauge wire from power supply to the the power transfer. Excessive wire run...
If Chexit device LED blink once when you turn the unit on, the External inhibit green wire is not by passed or not connected to the access control normally closed contact.  For devices sh...