INTRODUCTION　

DK-2823A / B is a self-contained general purpose keypad. It combines the digital keypad and proximity EM card reader in one unit.
The keypad has two output relays with N.C. and N.O. dry contacts for electric lock and auxiliary controls. It also has an NPN open collector output (the output 3) for auxiliary purpose in case three outputs are required in an application. 
The keypad has been designed for full feature stand alone access control applications. It is expandable to work with an optional decoder (DA-2800 or DA-2801) for high security split-decoded operation. It is also compatible with the auxiliary card reader (AR-2802) and the auxiliary keypad readers (AR-2806, AR-2807 and AR-2809) for upgrading a stand alone or split-decoded system to multi-station operation.
The keypad is ideally for door strike and alarm arm-disarm controls. It is also a programmable industrial timer (from 1 second to over 24 hours) for automatic operator system.

Two versions are available for DK-2823. They are denoted with a suffix letter “A” & “B”

DK-2823A (Standard Version):
Output Relay 1 – 5A Rating N.C. & N.O. Contacts for Door Lock Actuation Control
Output Relay 2 – 1A Rating N.C. & N.O. Contacts for Auxiliary Device Control, Such as Alarm Arm-Disarm
Output Relay 3 – NPN Transistor Open Collector Output for Auxiliary Control

DK-2823B (Door Bell Button Version):
Output Relay 1 – 5A Rating N.C. & N.O. Contacts for Door Lock Actuation Control, or Alarm Arm-Disarm
Output Relay 2 – 1A Rating N.C. & N.O. Contacts for External Door Bell Actuation Control
Output Relay 3 – NPN Transistor Open Collector Output for Auxiliary Dervice Control

　FEATURES　

• Three Output Full Feature Digital Keypad for Door Lock and Equipment Controls
  

• 12V-24V AC/DC Operation, Compatible with Fail-safe or Fail-secure Electric Door Lock
  

• 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
  

• 5A / 24VDC Contact Rating Form C Relay for Output 1, 1A/24V DC Form C Relay for Output 2 and Open Collector for Output 3
  

• Built-in Control Logic Circuit for High Security Dual Door Inter-lock System
  

• Two LED Lamps for Free Connection
  

• Timing Re-lock or Auto Re-lock for The Door After Entry Prevents “Tail-gate” Follower
  

• Door Forced Open Warning and Door Propped-up Warning
  

• Maximum 1,000 Users for Controlling Output 1 and 100 Users Each for Outputs 2 and 3
  

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

• Duress Code for Door Opening and at The Same Time Reporting The Event of Duress
  

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

• Three 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
  

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

• Alarm or Key Button Active Signal Output for Triggering Optional Equipment
  

• Standard and Door Bell Button (Using Output 2 as Bell Actuation Contact) Versions Available
  

• 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:
  12-24V AC/DC ±10%

• 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) + 50 Duress Codes
  Output 2 – 100 (PINs and/or Cards) + 10 Duress Codes (DK-2823A Only)
  Output 3 – 100 (PINs and/or Cards) + 10 Duress Codes

• 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) Independent Programmable Timers for O/P 1, 2 & 3.

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

• Input Sensing Terminals: 
  a) Door position, b) Egress, c) O/P 1 inhibit

• Output Control Terminals:  
  Transistor Open Collector 24VDC/100mA sink Max for the following outputs
  a) Duress, b) Alarm, c) Key Active, d) Output 3, e) Inter-lock

• Output Contact Ratings:
  Output Relay 1 – N.C. & N.O. dry contacts, 5A/24VDC Max.
  Output Relay 2 – N.C. & N.O. dry contacts, 1A/24VDC 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