About door controllers
We carry door access controllers made by selected manufacturers in the USA and Canada. 1 – 2 – 4 – 8 door controllers, IP, PoE, RS485 connectivity, all card technologies and much more.
WHAT ARE THE MAIN PARTS OF A CARD ACCESS SYSTEM?
There are very few parts needed for a fully functional card access system:
• access cards
• card reader
• door controller
• electromagnetic door lock
The card reader really just reads a card, tag or whatever is presented as a credential. Usually it is an RFID (contactless) reader but it can be some other technology. When a card is read, the data signal is sent over to the door control panel via serial wire connection. Wireless readers are rarely seen.
The door controller is a small box with “brains” (microprocessor) that actually opens a door when presented with a valid credential. The door panel is programmed with an all access card number enrolled into the system. There is also information about groups of users, card expiry date, dates and times when card holders are allowed to access protected areas. So after receiving the card serial number from the card reader, the door controller has to decide whether the conditions for access are met. If yes, it will activate an output relay and send a signal to the door lock to unlock it for few seconds. If not, the person will be denied access and log about the event will be written into the door panel memory.
NUMBER OF CONTROLLED DOORS
Users usually start with one or a few doors and then quickly expand after they find out how great it is to have a door access control system!
In the case of an IP, PoE based door controllers it is quite easy to install or expand an existing system. We offer many ready to go kits with everything in single package. Just add a door lock and the door is controlled and protected. Some of the door controllers even have web server based software built-in so no extra software is required.
There is really no limit to how many doors one can control. Standard door access systems with 2-4-8 door control panels would get daisy chained together with an RS485 connection so some planning is required.
We carry 3 brands of card access systems. Use the menu at the top to select a brand or style that you would like to explore
In order for a door controller to be functional it has to have attached (at bare minimum):
• power feed
• card reader
• output to door lock
• means of communication so it can be managed
IP door controllers are especially flexible in that way. For example the Intelli-M S-eIDC32 or has a power feed and communications enabled through a single cable (Ethernet connection). The corresponding Ethernet switch has to be a PoE capable in order to feed power to the door controller.
That means there are practically only 3 connections needed:
1. Ethernet cable (communications and power)
2. Output wire to door lock
3. Wire to card reader
It can’t be simpler than that! Wiring around the IP, PoE controller could be done within minutes, rather than hours.
There are other connections possible but not essential for the functionality of the door controller:
• second reader input
• REX (Request to Exit) input from wall switch or REX IR motion detector
• door magnetic contact input
• extra relay output
• and more …
ALL CARD ACCESS SYSTEMS ARE NOT BUILT THE SAME!