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“ is black positive or negative DC voltage ”

RELATED FAQS

Resolution: The SEH is an "electronic holder" (ONLY) that is used to hold open a Fire Rated opening. It requires a door closer to be mounted on the opposite side. It is normally used on an existing opening wit...:

Why won't the 5100 24v strike work on both a RH & LH door?

Resolution: The 5100 strike details are listed below: Only operates with 12VDC or 24VDC power supply. Will not operate with AC transformer. 12 or 24VAC can be converted to 12/24VDC using Von Duprin SO12 o...:

Why does the DC output voltage on the PS914-2RS or PS914-4RL drops when access control is activated?

Resolution: 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...:

No DC output from Power Supply

Resolution: If a power supply is not outputting DC power, 12 or 24VDC at the Power supply main board lower right terminals ( DC+ DC-), there are several potential causes. · &n...:

How do you test the potted circuit breaker or potted module on an EL device?

Resolution: For Potted Modules (black color) shipped before August of 2012, you can test by applying power to the potted circuit breaker to and if good the following voltages will be seen (be careful...: