INTRODUCTION 
DK-2821 MK-II is a self-contained digital access control keypad that combines proximity EM card reader in one unit. It can be flush mount on a single gang box or surface mount on its plastic mounting box.

The keypad output is a solid state relay selectable to drive Fail-safe or Fail-secure electric lock. Solid state relay gives longer service life and prevents sabotage of energizing the output relay to open the door with a strong magnet.

The keypad is employing the Tri-Tech design approach capable of system expansion. It works perfectly in stand alone operation, split-decoded operation for security enhancement with the optional decoder, and multi-station operation for user convenience with the auxiliary keypad-readers.

The keypad is ideal for access control and alarm system arm-disarm control. It is also a programmable industrial timer (from 1 second to over 24 hours) for automatic operator system.

 FEATURES 

• Single Output Digital Keypad for Door Lock and Equipment Control
  

• 12VDC Operation, Compatible with Fail-safe or Fail-secure Electric Door Lock
  

• 3A / 16VDC Maximum Power Rating Solid State Door Lock Driver for Long Service Life
  

• Built-in Real-Time-Clock Controls The Start and Stop Times in Daily Operation
  

• Stand-alone, Split-decoded and Multi-station Tri-Tech Operations
  

• Compatible with The Auxiliary Reader, Auxiliary Keypad and Split-decoder for System Expansion Simply with Single Wire Connection of  Their Common Data I/O Bus
  

• User Code, EM Card and EM card + User Code Concurrent Operations
  

• Compatible with 125 Khz Manchester 64-bit EM4100 & EM4200 EM Cards and Keyfobs
  

• Maximum 1,000 Users for Door Lock Control (Output 1)
  

• Multi-task Super User Code for Inhibiting (Refuse Access), Overriding Door Lock (Keep Door Open); and Operating The Output 1 at Any Time And under Any Condition for Safety
  

• 50 Visitor Codes for Temporary Workers and Visitors, Which Expire after Use or The Programmable Time of 1-99 Hours
  

• Two Programming Options for System Safety Lock-up after Successive False Code Entry
  

• Outputs Are Configurable with 1-99999 Seconds Auto Reset Mode or Start / Stop Mode.
  

• Auto or Manual User Code Entry Mode for User Convenience And Security Enhancement
  

• Pacifier Tone And Door Open Announcer Can Be OFF for Silent Environment
  

• Standby Flashing LED Indicator Can Be OFF for People Do Not Like Flashing LED at Night
  

• Four Egress Delay and Warning Options for User Convenience and Security Enhancement
  

• Built-in Tamper Switch with N.C. Dry Contact

• Indoor Use Only. Surface Mount on The Supplied Plastic Box or Flush Mount Directly on U.S. Electric Gang Box

  
  

 SPECIFICATIONS 

• Operating Voltage:
  12V DC Nominal; 11-15V DC

• Operating Current:
  60mA (quiescent) to 95mA

• Operation Temperature: 
  -20  C to +70  C

• Environmental Humidity: 
  5-95% relative humidity non-condensing

• Working Environment: 
  Indoor use only

• Number of Users:
  Output 1 – 1,000 (PINs and/or Cards)

• Proximity Card:
  Standard EM Card or Keyfob, 125Khz

• Number of Visitor Codes:  
  50, programmable for one time or with the time limit

• Timings for Code Entry and Card Reading:
  10 seconds waiting for next digit entry
  30 seconds waiting for code entry after card reading

• The Timers:
  Three 1-99,999 Seconds (Over 24 Hours possible) Programmable Timer

• Egress Button:  
  Programmable for Instant, Delay with Warning
  Momentary or Holding Contact for the Exit Delay

• Output Contact Ratings:
  Output Relay 1 – Solid State Relay, Fail-safe or Fail-secure selectable, 3A/16VDC Max
  Tamper Switch – N.C. dry contact, 50mA/24VDC Max.

• Dimensions:
  117(H) X 74(W) X 48(D)mm

• Weight:
  200g net

• Housing:
  ABS Plastic Box

Specifications are subject to change for modification without notice