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SPECIFICATIONS



Operating Voltage:

12V-24V AC/DC, Auto adjusting

Operating Current:

62mA (quiescent) to 130mA@12VDC

30mA (quiescent) to 61mA@24VDC

Storage and Operation Temperature:

-20 C to +70 C

Storage and Operation Humidity:

5-95% relative humidity non-condensing

Working Environment & Ingress Protection:

All weather, IP-66

Number of Users:

Output 1 – 1,000 (Codes and/or Cards) + 50 Duress Codes

Output 2 – 100 (Codes and/or Cards) + 10 Duress Codes (DK-2852C)

Proximity Card:

Standard EM Card or Keyfob, 125Khz

Number of Visitor Codes:

50, programmable for one time or with 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:

1-99,999 Seconds (Over 24 Hours possible) Independent Programmable Timers for O/P 1 & 2

Egress Button: 

Programmable for Instant, Delay with Warning

Momentary or Holding Contact for 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) Key Active, c) 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:

125(H) X 79(W) X 46/54(D)mm

Weight:

520g net

Housing:

Die-Cast Aluminum, Powder-paint coating

Faceplate Material:

1.5mm stainless steel 

 

 

APPLICATION HINTS FOR THE AUXILIARY TERMINALS

                                                                                                                                                   

(C) KEY ACTIVE

(a)

(b)

The Key Active Output switches to (-) ground 

for 10 seconds whenever a key is touched. 

You may use it to turn ON an LED lamp and 

/or  a  small  buzzer  to  notify  a  guard;  or 

to energize  a  relay  to  switch  ON  lights  or 

trigger an CCTV Camera to start recording.   

Make  sure  that  the  relay  for  switching  ON 

lights  has  high  enough  isolation  between 

high  voltage  and  low  voltage  to  prevent 

damage of the keypad.  

Only one connection option is recommended. 

Make sure the sink current does not exceed 

the maximum rating of 100mA.
External  power  supply  and  isolation  relay 

are strictly necessary in driving high power  

device, such as lights.

(B) DOOR SENS

With  the  help  of  a  Normally  Closed 

door  position  sensor  (usually  a 

magnetic door switch) on the door to 

set up the following functions:

Door Auto Relock

  --  The  system  will 

immediately  relock  the  door  after  a  valid  access 

has been gained to prevent "tailgate" entries. 

Door  Forced-open  Alarm

  --  The  keypad  will 

generate  alarm  instantly  if  the  door  is  forced  to 

open. Enable the function at Location 80.

Door  Propped-up  Alarm

  --  The  keypad  will 

generate alarm if the door is left open longer

than the pre-set delay time. Enable the function

at Location 81.

Inter-lock Control

 -- When the door is open,the 

interlock  output  of  the  keypad  will  give  a  (-) 

command  to  stop  the  other  keypad  in  an 

inter-lock system.

(–

)

GND

DOOR SENS

(A) TAMPER N.C.

The tamper switch is Normally Closed while the 

keypad is secured on gang box. It is open when 

the keypad is removed from the gang box. To 

prevent sabotage, connect these terminals in 

series with a 24 hour N.C. protection zone of an 

alarm system if required. 

Summary of Contents for DK-2852C

Page 1: ...VANDAL RESISTANT BACK LIT WEATHERPROOF RFID ACCESS CONTROL KEYPAD DK 2852 C D User Manual FOR ELECTRIC LOCK INTER LOCK AND SECURITY SYSTEM INSTALLATIONS AEI PROTECT ON SYSTEMS LIMITED www apo hk com...

Page 2: ...User Code Common User Codes for Output 1 2 User Codes Card For Output 1 2 Examples Programming And Operation Visitor Codes For Output 1 Only Duress Codes For Outputs 1 2 Operation And Function of The...

Page 3: ...ct means that no electricity is connected to it It is prepared for free connections The Relay Output contacts provided in this keypad system are dry contacts N C Normally Closed the contact is closed...

Page 4: ...ation Control Output Relay 2 1A Rating N C N O Contacts for External Door Bell Actuation Control A member of the Tri Tech series keypads compatible with the optional controllers reader keypads for sys...

Page 5: ...hes to ground when duress code is entered You may use it to turn ON an LED lamp and or a small buzzer to notify a guard or connect it to a 24 hour Normally Open protection zone of an alarm system Only...

Page 6: ...ILIARY TERMINALS C KEY ACTIVE a b The Key Active Output switches to ground for 10 seconds whenever a key is touched You may use it to turn ON an LED lamp and or a small buzzer to notify a guard or to...

Page 7: ...the auxiliary readers AR 2802 and the auxiliary reader keypads AR 2806 AR 2807 AR 2809 Total 3 auxiliary readers or reader keypads can be connected in parallel with the Data I O Bus They provide the...

Page 8: ...ECTION TERMINALS 3 Split decoded Access Control Door Lock Description Apart from stand alone operation the DK 2852 can be up graded to high security Split decoded operation with a decoder unit DA 2800...

Page 9: ...Warning The keypad generates door forced open warning instantly once the door is forced to open without a valid user Code Card or egress button The warning lasts as long as the time programmed 1 999 s...

Page 10: ...door position sensing switches for the two doors 16 17 TAMPER N C Tamper Switch Normally Closed Contact A normally closed dry contact while the keypad is secured on its box It is open while keypad is...

Page 11: ...eep 1 Flash 3 Successful Code Card Entry 2 Beeps 2 Flashes 4 Unsuccessful Code Card Entry 5 Beeps 5 Flashes 5 Power Up Delay Continuous Beeps Continuous Flashes 6 Output Relay Activation 1 Second Long...

Page 12: ...User Code Operation Media 3 A secondary user code can be repeatedly used for a group of cards in a department Owner can make a proprietary department code for each department in a company Only the sta...

Page 13: ...with proprietary user code approach is ideal for the area that high security is the main concern This operation mode can also report Duress Alarm by keying in the duress code instead of Secondary user...

Page 14: ...r power has been applied It is the time frame designed for setting the keypad to programming mode with DAP code See the details of DAP CODE 2 8 2 8 below 1 The keypad gives continuous beeps for 1 minu...

Page 15: ...ogramming Code The system back to normal opration after programming Pacifier Tone ON OFF 7 1 FUNCTION MODE 0 NO Notification 2 2 Short Beeps 1 1 Second Long Beep FUNCTION MODE 0 OFF 1 ON FUNCTION MODE...

Page 16: ...ting system program It can not be changed in any ways PROGRAMMING SUMMARY CHART LOCATION FUNCTION ENTRY LIMITS CODE OPTIONS CODE ENTRY FACTORY DEFAULT 0 1 Master Code 4 8 Digits MASTER CODE NIL 0 2 Su...

Page 17: ...sed with the EM Card It is for example here only f Confirm the Card Code is stored 2 beeps 6 Record an EM Card Commom User Code to Operate The Output 1 for Door Open a b c d e a 10 Programming Locatio...

Page 18: ...be used to reset an operating output timer instantly Output 1 Activates or Resets Output 2 Activates or Resets Optional Functions Controlled by Super User Code for Output 1 Apart from controlling of t...

Page 19: ...LIDATION Press key once Two beep confirms the entry or 3 2 1 CLOSE PROGRAMMING MODE Always close programming mode with to set system back to normal Operation after programming The button is equivalent...

Page 20: ...eps confirms the entry EXAMPLES Example 1 Set Egress Button in Momentary contact of 5 seconds with delay warning beep a b c d a Egress function programming b Momentary contact with warning c Delay tim...

Page 21: ...card once and confirm It does not require the ID number The Card includes the combinations of 1 Card Only 2 Card Secondary User Code and 3 Card Common User Code 1 2 5 4 3 Location Clearing takes few s...

Page 22: ...o operation mode a b a Key in the Private User Code 1 2 3 4 b Confirm it with the key Output 2 activates Read Card Read Card High Traffic Passage A short buffer time may be necessary for opening a doo...

Page 23: ...o prevent unattended leaving shoplifting and unauthorized use of the emergency exits The Intelligent Egress Button can be programmed to do something to get attention from the person on duty before the...

Page 24: ...e Whole Group of Users Whole group of users including the Codes and Cards can be cleared with the following command a b c a The User Group 1 10 is selected to be cleared 20 for Group 2 b Key in the Gr...

Page 25: ...on 72 1 LOCATION Key in Location 2 FUNCTION MODES FOR OUTPUT ANNOUNCER Output announcer gives notification beep on the operation status of the outputs There are two notification modes available for th...

Page 26: ...User Codes must be in 5 digits as well All other User Codes not in 5 digits become invalid When the number of digits reaches the system will check the User Code automatically Good for high traffic acc...

Page 27: ...e code entry The Duress Codes MUST be in the same digit length with the Master Code for Auto Mode code entry Always set a Duress Code that is easy to remember in Panic Situation Only one number differ...

Page 28: ...Output 1 b Duress Code ID c The Duress Code e Entry Confirmation iii Pause the real time inhibition manually The real time inhibition can be stopped temporarily if require such as the staff work overt...

Page 29: ...t in emergency START STOP TIMES FOR DAILY INHIBITION OF OUTPUT 1 Location 56 Setting with start and stop times into the keypad the real time inhibition period for output 1 will recycle daily until the...

Page 30: ...our real time clock provides the daily time base for starting and stopping the function of inhibition to relay output 1 mainly for electric door lock strike No real time clock setting is required if d...

Page 31: ...nterference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful inter...

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