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WIRELESS MAGNETIC 

CONTACT SECURITY 

DETECTOR 

«CN-Magnetic-Mini»

 

Installation Guide

1 General Information

1.1 Wireless magnetic contact security Detector «CN-Magnetic-Mini» 

(hereinafter, the Detector) is intended for opening or shifting control 
of doors, windows or other structural elements with transmission of 
messages to the control panel (hereinafter, CP) via two-way wireless 
communication by the «CN-Contaсt-R» protocol. 

1.2 Opening or shifting control is fulfilled by built-in magnetic contact 

state monitoring.

1.3 The Detector operates within 433.05 – 434.79 MHz  frequency 

range. Transmission power does not exceed 10 mW. 

1.4 The Detector ensures operation at the main and backup operating 

frequencies. The changeover to backup operating frequency is fulfilled 
automatically.

1.5 Radio communication is initiated by the Detector at 10, 15, 30 sec, 

1, 5, 10 min intervals assigned in the process of their binding with the 
CP. Alarm and tamper messages are transmitted immediately.

1.6 The Detector is powered by the one lithium power supply battery 

CR123A.

1.7 The Detector generates and transmits the following messages:
- «Norm» – under closed built-in magnetic contact;
- «Alarm» – under opened built-in magnetic contact;
- «Tamper» – in the event of case tampering;
- «Power Supply Low Battery» – under the power supply battery 

voltage drop over 2.2

-0.2

 V.

1.8 The Detector is designed to operate continuously, around the 

clock. 

1.9 The Detector has immunity to electromagnetic interference.

2 Specifications

Table 1

Parameter 

Value

Distance between the Detector and the magnet, mm:     
- when the contact is opened 
- when the contact is closed

more than 20 

less than 5

Operating temperature

From minus 20 to +55 °С

Permissible relative humidity at 25 °C temperature

up to 98 %

Ambient class

Boreal climate*

IP rating

IP30

Dimensions,  maximum

97 x 25 x 21 mm

Weight, maximum

0.05 kg

Battery life under normal climatic conditions, disabled 
indication and assigned radio exchange period up to 
30 sec, not less than

60 months

Average service life, not less than

10 years

*  –  background temperature 15 – 35 

о

С, relative humidity 25 – 75 %, 

 

air-pressure 86 – 106 kPa

3 Scope of Delivery

Each Detector unit package contains the items listed in Table 2. 
Table 2

Name

QNT  

Wireless magnetic contact security Detector «CN-Magnetic-Mini» 
Master element (magnet)
Master element case
Screw 3-3х30.016 
Power supply lithium battery CR123A
Wireless magnetic contact security detector «CN-Magnetic-Mini». 
Installation Guide

1 pc.
1 pc.

1 pc.*
4 pcs.

1 pc.

1 copy

* – is supplied non-assembled

4 Design

 

The Detector consists of a case cover and a base with installed printed 

circuit board (PCB) (1). In the base openable fixation holes are located  
in the bottom (6) and in side wall (8).  The PCB comprises: battery holder 
(2), RESET contacts (3), tamper contacts (4), built-in magnetic contact 
(5) and antenna (7). For  built-in magnetic contact management, magnet 
(9) is used (supplied).

Figure1 – «CN-Magnetic-Mini» 

5 LED Indication

The following types of indication are generated by the Detector:
- «Binding» – procedure of logging of the Detector in the CP;
- «Identification» indication is activated by relevant commands received 

from the CP, remains active during 15 min or until the Detector cover 
is opened;

- LED indication of the Detector state is activated after the Detector 

cover is closed and remains active during 15 min under conditions:

- other LED indication types absence;
- alarm «Tamper» message is not generated during this time;
- absence of command from the CP disabling the Detector state 

indication. 

The modes of LED indication are listed in Table 3.
Table 3

The Detector State

Indication

Note

«Binding» procedure

LED indicator periodical 

blinking green

The Detector logging in 

the CP

End of the «Binding» 

procedure

LED indicator lighting 

red for 2 – 3 sec

«Identification» 

indication

LED indicator alternate 
blinking red and green

By the relevant 

command from the CP

«Alarm»

Single-shot LED 

indicator lighting red for 

4 sec

State indication is 

ON, «Identification» 

indication is OFF

Communication Quality 

Appraisal

See sect. Communication Quality Appraising

«Norm»

LED is OFF

6 Binding with the CP

The «Binding» mode is intended for the Detector logging in the CP 

and service information exchange.

6.1 Prepare the CP in accordance with CP Installation Guide.
6.2 If power supply battery is installed in the holder (2), remove an 

insulating film.

6.3 Periodical LED indicator blinking green is evidence of binding 

process.

6.4 In case of mentioned above LED indication absence, short-circuit 

«RESET» terminals for 2 – 3 sec.

6.5 Successful binding procedure complying is indicated by LED 

indicator lighting red for 2 – 3 sec.

6.6 The time limit for the binding process of the Detector is 100 sec. 

To restart the binding procedure, short-circuit «RESET» terminals for 
2 – 3 sec.

7 Communication Quality Appraising

7.1 For radio communication quality appraising it is necessary to:
- set the Detector on the assumed place of installation;
- push and then release case tamper.
7.2 After case tamper releasing the Detector generates case 

tamper alarm message, transmits it via radio communication channel 
and represents communication quality with CP by LED indication in 
accordance with the Table 4.

Table 4

LED Indication

Communication 

Quality Appraisal

Recommendations

Color

Mode

Green

Three blinks

Excellent

Install the Detector at 

this place

Green

Two blinks

Good

Green

One blink

Communication 

established

Choose another place 

for installation or use a 

repeater*)

Red

Four  blinks

No communication

*) – «C.Nord» system repeater

9

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