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Digital keypad  KB-2051 

4/1 

MCM51200 

2 = silent -panic code works as a valid access code, but the output terminal OUT is also triggered 
(silently) after you enter the panic code. 

Factory default: 1 (audible panic) 

 

[8] [x] - function of the OUT terminal in the control panel mode

 (x - 1 to 4), 1 = panic, 2 = alarm 

memory, 3 = pre-alarm, 4 = armed. This setting will function only under the control panel mode. 

Factory default: 4 (armed) 

  

[9] [x] - Quick arming

 (x - 0 or 1) 0 = disabled, 1 =  enabled. You can enter [

] [0] instead of your 

access code to arm the keypad if the quick arming is enabled. It can be used only for arming, not for 
disarming. This command works only for the LATCH and the control panel mode. 

Factory default: 0 (disabled) 

  

You can exit

  the installer programming level by either  

pressing the [#]

 key, (resulting in  

no data being 

stored

 to the memory and the sounding of the shrill sounding beep),

 or

 by pressing the 

[

]

 key 

to store the 

data

. Only if you use [

] to return to the stand by mode will the data you programmed be valid. All of the  data 

is stored in the non voltage memory, so they will not be lost even if the power is switched off. 
  

COMPLETE RESET: 

In the event that the master code or installer code is forgotten (or for some other 

reason), it is possible to completely reset all the settings of the KB-2051 to the factory default. To do this, 
open the unit (be careful of the tamper switch), disconnect the power for one minute. Then install the jumper 
RESET on the keypad board. Reconnect the power supply. Wait 2 seconds and remove the jumper. 
 

User guide: 

 

 

 

JABLOTRON Ltd      MADE IN CZECH REPUBLIC 

 
Note:
 Although this product does not contain any harmful materials we suggest you to return the 
product to the dealer or directly to the producer after usage.

DIGITAL KEYPAD KB-2051 

 

A simple yet powerful device suitable for both Access Control and Command & Control solutions. With this 
digital controlled keypad, you will not only enjoy a high level of security, but also be freed  from carrying your 
keys with you.  This keypad can also be programmed to be used as a small alarm control panel  

 

 

DESCRIPTION

: Output relay contacts are controlled by access codes. It  works in a PULSE, LATCH, or 

CONTROL PANEL mode. 
PULSE MODE: When you enter a valid access code, the output relay is switched ON for a designated time 
period (programmable). LATCH MODE: Each valid access code changes the output relay condition (ON-
OFF-ON-OFF....). 
CONTROL PANEL MODE: You can use this device as a security control panel with a delay input loop. This 
way it is possible to arrange small alarm systems without a control panel. There is an input loop where 
detectors can be connected. In this mode an exit/entrance and an alarm duration timer are programmable. 
Alarm memory and pre-alarm signals  are available as well. 

The keypad also provides one output (OUT terminal) which works as a PANIC signal output in the 

PULSE and LATCH modes. The OUT terminal can have  different (programmable) functions in the control 
panel mode. The panic signal can be activated by a programmable number of unsuccessful attempts to 
enter the access code. Or, you can trigger this output with an PANIC code. You can choose an audible 
PANIC signal as a response to the PANIC code, or you can have a silent PANIC signal. This feature can 
be very useful in the case you are forced to enter your access code under pressure. In such a situation you 
can operate the keypad with your silent panic code, which will work as your proper access code. At the 
same time, it will also silently call for help. The KB-2051 is also protected with a tamper switch. 

 

 

SPECIFICATIONS: 
power voltage: 11 - 16VDC 
consumption: 10mA (relay off), 50mA (on) 
output relay: contacts N.O./N.C. max.1A/100V 
output OUT: transistor to GND 0.3A/24VDC 
tamper switch: NC contact 1A/100V 
built in buzzer: 70dB/0.3m 
working temperature: -15 to +75

o

codes: Master Code, five User Codes, Panic 
Code, One Time Use Code and Installer Code. All 
codes are four digits. 
memory: non-voltage  

Complies with the essential requirements of: 
89/336/EC  EMC Directive - Protection concerning 
electromagnetic compatibility when is used for its 
intended purpose.

 

Original of the conformity assessment can be found at the web page 

www.jablotron.cz

section Technical support.

 

 

 

Front panel 

A

 - (Green LED) indicates current status (relay condition in pulse or latch mode, arm indication in 

control panel mode). 

B

 - (Red LED) free use - this LED lights when the LED terminal is connected to the GND. 

SET MODE

 - (Red LED) indicates that you have entered the programming mode.  

Keypad

: All  keypad functions can be controlled by or programmed with the keypad. Pressing the [#] 

key erases the input buffer (stops the programming) and acts as an ESC function. 

 

 

INSTALLATION

Mounting the keypad - select a suitable location  for both easy operation and wiring. 

After opening the unit by pressing down on the plastic lock, mount the rear housing on the desired surface 
(use two screws or double sided adhesive tape). 

 

 

WIRING: 
C, NC

, and the 

NO

  terminals are the output relay over stitching contacts (max 1A/ 100V). 

TAMP

 terminals are the outputs for the tamper switch (normally closed). 

GND

+12V

 power supply 12VDC should be connected to these terminals. Voltage must not be 

switched on before finishing and checking installation! 

 

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