Access Control ProductsThis page shows some of the access control products we carry.Most traditional access control systems involve at least 4 pieces: See also: Securitron Full Brochure (PDF) |
LocksThe lock is what holds the door shut. (Duh!) For a door to work with any kind of access control system, the door must be "unlockable" automatically, usually by applying or removing a voltage from a wire. Obviously, any other manual lock on the door must be defeated, either temporarily or permanently, for the automatic lock to work. This means the the sole mechanism holding the door shut is the automatic lock and its wiring. Two common forms of electric locks are "strike plates" which swing open or push back the latch, allowing it to escape when activated. And maglocks that hold the door closed through magnetism.Electric Strike Plate
MaglockWhile it may seem strange to have only an electromagnet securing your door, it's done all the time. These devices are amazingly strong; the handle will pull off the door long before these guys let go! They are easy to install, wire and control. Designed mostly for "commercial" installations as they are visible when installed.
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Power SupplyThe power supply in an access control system usually doesn't have to bee very big, but it should have two critical characteristics: Bullet-proof reliability and battery backup.It should be very reliable because, if the door-locks are fail-safe and the power supply fails...your doors are unlocked! If the door locks are fail-secure and the power supply fails, the doors cannot be opened! It's for this same reason that the power supply should be battery backed. You want things to keep working normally, even during a power failure. We use a standard security system battery to back up the power supply. Note that the "power supply" is actually a nice metal enclosure that comes with a power supply designed to provide power as well as keep a battery charged, it has space to house the battery, and a terminal strip where you can make all the interconections between the entry/exit controllers, door-locks, and power supply. The picture below is the power supply that operates our back door access. Note the small relay (middle right). This relay allows the Panasonic phone system to unlock the back door. When someone presses the button on the doorphone, we can press "5" to unlock the door. The phone system provides a contact closure to unlock the door. Since we use a maglock, we need to open contacts to unlock the door. I wired in a 12VDC DPDT relay to convert the closure to an opening. For a full picture of the power supply as mounted on our "low-voltage panel", click here. See also the Securitron Power Supply Brochure (PDF)
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Request To Exit DevicesA "Request To Exit Device" is something you use to unlock the door when you are exiting the secure area. You may not even need a request to exit device if you are using a door-strike and the inside doorknob still works even when the door is locked. You should always have some sort of obvious request to exit device when using a maglock. It is a code requirement in all commercial buildings as well as just common sense in private structures that you be able to get out in an emergency! Now, leaving may trigger an alarm or something, but that's the security system's job. (Most request to exit devices will give you a contact closure to connect to the security system, or you can just use a reed-switch on the door.) If the door is alarmed, put up a large "EMERGENCY EXIT ONLY / ALARM WILL SOUND" sign.See our back door, maglock, touch to exit button, and security system reed-switch. Click here. Note the small manual deadbolts. If power is off for an extended period (days) and the battery is running down, we want a way to physically lock the back door.
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Entry DevicesEntry devices allow authorized users to unlock the door and enter. A common entry device is the keyfob. Give each user a high-security keyfob radio transmitter.Another popular entry device is the keypad. This keypad can be programmed with a different 2 to 7 digit code for each authorized user. This is important when a user is no longer authorized; you can just delete that code from the system.
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