Dortronics 49211-U PLC 2-Door Interlock Mantrap Controller (2-Door / 1-Room Normally Unlocked)

• Suitable for air locks or security mantraps, this door interlock system will effectively control normally unlocked doors, normally locked doors or any combination of both.
• The controller may also be customized to control automatic door openers and provide timing and logic sequences for biological wash-down and air purging controls.
• Fail-safe or Fail-secure Locks
• Lock control relays with DPDT outputs allow use of 12 or 24 volt DC fail-safe maglocks and fail-secure electric strikes.
• Both types can be used simultaneously on the same doors.
• Any access control system can be used with the 4900 series controllers.
• The request for access input recognizes any normally open dry contact.
• Optional 12/24 VDC Lock Power
• While the PLC controller requires regulated 12 or 24 VDC input, the intergral 4204 power supply also provides ample 12 or 24 VDC output to operate maglocks and/or strikes for each of the doors.
• The heavyduty power supply is ready for hook-up to the fire alarm system.
• An alarm output is also provided for monitoring the control system.
• The DPDT relay outputs can also be used to control lighted door status indicators; which provide users with visual feedback as to when a door may be accessed.
• For user convenience, a green light is typically used to signify that a door is ready for access and a red light to indicate that a door is un-accessible.
• Dortronics #7201xL2-H hi-intensity LEDs are ideal for use with this system.