what is door contacts

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Typically a magnetic contact switch used to monitor whether a door is open or closed
Allegion provides professional access control support to Security Consultants and Security Integrators.  For information related to specification development and support,Access Contro...
Allegion does provides professional support to Architects and Design Professionals. For information related to specification development and support, Website for Architects and Design Professiona...
You can contact Allegion Customer Service (Sales Support) or Technical Support (Product Support) by phone or by email. To contact by phone: call 877.67...
NOTE: You can also reach your local sales office by dialing 877-671-7011 and selecting option #3 from the main menu. You will be directed to your sales office based on the area code ...
Some Access Control Panels are designed with “Supervised” or “Dry contact” requirements for the inputs and have no common ground between the ACP (Access Control Panel) and device at the door. “S...
Schlage offers the “RLBD” to support these supervised or dry contact interface applications. The "RLBD" plugs directly into the PIM400-TD2 or PIB300-TD2 for easy hook-up.  
Please reference this Tehnical Note RLBD SES-20120418 for RLBD setup, use information, hook-up diagrams and some testing suggestions when connecting to a Supervised dry contact Access Contro...
This is a link to the RLBD Installation Instructions.
This RLBD data sheet can also be found at Schlage/Technical Support. RLBD DataSheet
Steelcraft offer a limited warranty to customers that products will be free from defects in the material and workmanship for a period of 12 months from date of shipment of products.Warranty St...
Job Specific Warranty - If job specific warranty letters or certificates are required, please refer to the Allegion Contact Us web page and request the applicable information.NOTES:F...
If your Von Duprin EL (solenoid) device pulls and releases quickly instead of holding the latch retracted, please check all of the items below.In most cases, one or more of these solutions will r...
The LCN direct retrofit for the Obsolete 303 OHC closer was the 330 series, it was discontinued in 2009. The 3030 closer door closer body can be used as a replacement cylinder. 
The following may cause the ALK to go into alarm: Make sure red and blue wires on the RX switch are connected to the exit alarm ALK terminal block and yellow wire is taped off. Check the red an...
The following items are needed for Spec Writers to write a door and hardware specification  Building code being used Occupancy type or types Occupancy load for any rooms or areas of ass...
Yes, stainless steel doors and frames are available. Door Construction: LS-Series: Visible edge seams Door construction similar to the L-Series LSW-Series: Seamless with we...
The 330 closer and parts were discontinued in early 2009. LCN does not have any parts available for the 330 series closer. The LCN 3030 Series would be the comparable closer replacement to the...
A 4040SE would not hold the door open if it has : No Voltage or Improper Voltage. Check that the track has proper voltage going to it (24V AC/DC or 120V AC). If 120 volts is supplied...
Because of the new extended LCN warranties and the desire to be consistent across the entire Allegion premium brands, LCN will be moving away from offering an out-of-warranty repair service beginni...
LCN does offer a 2810 Senior Swing / 2010 manual closer combo for a pair of doors.  Both units contained within the same Senior Swing header. To order a paired operator with a 2810 on&nb...
The LCN 6030 is a Double Acting (or dual action) closer. Requires a "Cased Open Frame" - that means no stops formed in the frame.
The Schlage L-Series mortise lock spindle and spring part number can be found in the Table 1.     Spindles and Springs   Part Number  Description  L283-060 Spindle and spring, 1...
Followings are the reason for 98/99 exit alarm ALK not sound when push bar is activated. Make sure key switch on exit alarm ALK is turned on, wait for 20 seconds before you activating the pushba...
There are 2 types of door coordinators available: Bar Coordinators (Ives COR Series): Surface mounted to the bottom surface of the frame soffit. The active door lever, located nearest to th...
Yes, specify 98/9949WDC or 98/9949WDC-F.  Contact the wood door manufacturer for availability.
There are a few things that can cause a closer to slam. The closer could be adjusted incorrectly. Turn all regulating screws clockwise until they stop. Then open each valve 1 and 1/2 turns. If t...
There are several door manufacturers that have achieved a 90 minute UL Fire listing as shown. Von Duprin CVC with Marshfield Wood Door: Von Duprin is pleased to announce that Marshfield has s...
Please contact Technical Product Support at 877-671-7011 option 2 for assistance.
Schlage ND-Series tailpieces for extended doors are available by only two means, but are not available to order separately. If an extended tailpiece is needed, then a complete lock will need to ...
Steelcraft does not offer factory powder coated doors and/or frames. Powder coatings usually require heat between 300 to 400 degrees to melt and cure the powder coat. The higher heat can ca...