DSX Access Systems, Inc.

First Man In / Snow Days

Do Not Unlock by Time Zone until First Card Read

DSX can accommodate keeping a door locked until a card holder is granted access at that same or other door. This prevents a door that normally unlocks via Time Zone from unlocking on a day when no Card Holders come in such as a snow day. There are several variations to this which are covered below. This application is based on the new Time Zone linking features of the WinDSX 3.7 and higher software. It requires that all controllers in the location have a 1040 processor and firmware version 3111 or higher.

Programming – Here are the general programming parameters. You will have to substitute the appropriate device, input and output addresses.

Location – Select “Enable Linking Logic” and “Enable Code to Linking Logic”

Device – Select “Device Used for Code to Linking Logic”.

Output – Create a Virtual Output. This is an Output that does not physically exist but operates as if it did. This could be Output number 3 on the same Device you want to control the unlocking from.

TimeZone – Create Time Zone “A” according to the lock/unlock schedule desired for the door and Select “Time Zone is ON when Linked to”. Assign this Time Zone to the door lock Output number 1.

Create Time Zone “B” that has a Start Time the same as Time Zone “A” but with a Stop Time set for one minute later. Assign this Time Zone to the Virtual Output number 3.

Create Time Zone “C” that defines when a card can set the door to unlock by Time Zone. This would probably be sometime after the beginning of the day (Start Time 0) and the time the door is scheduled to relock (Stop Time 17:00 for example). This could even be the unlock period of the door possibly starting sometime before the door is to unlock. Keeping this window narrow keeps a card read after hours the night before from inadvertently setting the door to unlock the next morning.

Linking Group – Create a new Linking Group “1”. Of the Components to link to under Time Zone select the new Time Zone “A”, select a 24 hour Time Zone and a Response of “Latch”. Assign this Linking Group to the Virtual Output 3 and select “Perform Link On – Open”.

Create another Linking Group “2”. Of the Components to link to under Time Zone select the Time Zone “A”, select Time Zone “C” and a Response of “Time Zone”.

Linking Levels – Create a Linking Level that associates the Device in question to the above newly created Linking Group 2.

Operation – When the door locks the Virtual Output 3 secures also. One minute later the Virtual Output 3 opens and activates the first Linking Group 1 that consists of the time zone assigned to the door lock relay 1. The link forces the Time Zone to be On regardless of its schedule. Once a valid card read is received during the Time Zone 3 period the Linking Level activates the second Linking Group that sets the Time Zone controlling the door lock back to its schedule.

Implementation – For any Access Granted at a specific door to cause that door to unlock according to its unlock schedule, assign the Linking Level to all Card Holders. To implement this feature so that only Manager cards release the door to time zone, assign the Linking Level only to the Manager Cards. Other cards would still be granted access but not allow the door to unlock by Time Zone schedule. Be sure not to assign the Linking Level to any card you do not want to allow the door to release by Time Zone such as the cleaning crew.

In a situation where the manager or employee use an employee entrance but you want the public front door to be the one affected (released to Time Zone) set the Linking Level to associate the employee entrance device to the Linking Group instead of the public door device and Enable “Device Used for Code to Linking Logic” under the Device programming for that door. The Device used to release a door to Time Zone could be any or all Devices in the system or any combination of Devices.