This is usually due to a RS-485 Collision issue - a node is remaining in transmission state. To fix this issue follow these steps: Measure the RS-485 Input/Output to common... read more →
Find out how to diagnose and fix the issue here: Measure the card reader’s voltage. If the voltage (12 VDC-to-signal ground) is below 10 VDC (when cable is connected and... read more →
Yes, absolutely. The Snubber circuit eliminates abnormal and harmful reactive current surges through wet and output relays. Without Snubber circuits, relays will not or eventually fail after experiencing relay jitter... read more →
No, unfortunately, it is the installer’s responsibility to conduct a respectable site feasibility study, provide appropriate product recommendations based on the study, and to determine what is required to ensure... read more →
Do not feed the elevator relays with AC power. The Elevator Restriction 2012E boards are sensitive to AC power which can damage the relays (due to relay jittering caused by... read more →
For the TX3 series 2 door card access panels you have 2 powered/wet outputs #7 and #8 that supplies a 12Vdc (solid-state) 1 amp-shared for door strikes and maglocks or... read more →