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TIANJIN ESTEL ELECTRONIC SCIENCE AND TECHNOLOGY CO., LTD
TIANJIN ESTEL ELECTRONIC SCIENCE AND TECHNOLOGY CO., LTD
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Outdoor Telecom Cabinet Environment Monitoring System, With Sensors

TIANJIN ESTEL ELECTRONIC SCIENCE AND TECHNOLOGY CO., LTD
TIANJIN ESTEL ELECTRONIC SCIENCE AND TECHNOLOGY CO., LTD
Country/Region: China
Tel: 86--13752765943
Contact Person:
Ms Fiona Liang

Outdoor Telecom Cabinet Environment Monitoring System, With Sensors

Place of Origin : CHINA
Brand Name : ESTEL
MOQ : 1 set
Packaging Details : wooden case
Delivery Time : 20 days
Payment Terms : T/T, L/C
Supply Ability : 10000 sets per month
Contact Now

Outdoor Telecom Cabinet Environment Monitoring System


1. Monitoring System Diagram and Solution


Monitoring alarm

The monitoring unit conducts real time monitoring on smoke, water, door opening, LED lamp, temperature and humidity inside each compartment through various sensors. It is with alarm output, and can transmit alarm signals to Local Area Network or remote monitoring platform through RS485/RS232, Ethernet etc.


Monitoring Unit Diagram



The monitoring unit uses dual core processing. the power supply uses DC/DC module. The measuring channel, power supply, and communication interfaces are electrically isolated, so the monitoring unit has high reliability . The MCU control design has functions of self management and self correction. The monitoring unit support RS485/RS232 communication method. With the communication interfaces, it can realize many kinds of communication modes, such as point to point communication, point to multipoint communication, wireless remote communication, which can meet the need of various system networks.


2. Monitoring and Alarm


The monitoring unit conducts the following monitoring and alarm for the cabinet: door alarm, power failure alarm, smoke alarm, water alarm, temperature and humidity detection and alarm, shock and tilt alarm, etc.


(1) Door alarm


There are two door switches. The one near the top of the cabinet is used for control the on/off of LED lamp, and the other one detects the opening and closing of the cabinet door. When the door is open, the door switch closes, and the monitoring unit will transmit the alarm to the control center through RS485/RS232. Meanwhile, there is correlative alarm dry contact output (port AL6, AL7). It will close in abnormal situation.


(2) Power failure alarm


The port “AC220V” on the monitoring unit is for utility power detecting input. In case of utility power failure, the monitoring unit will transmit the alarm signal to the control center through RS485/RS232, and there is correlative alarm dry contact output (port AL8, AL9). It will close in abnormal situation.


(3) Smoke alarm


The port “S” on the monitoring unit is for smoke sensor detecting input. When smoke is detected, the red light on the smoke sensor turn bright, the monitoring unit will transmit the alarm to the control center, and there is correlative alarm dry contact output (port AL2, AL3). It will close in abnormal situation.


(4) Water alarm


The port “w+. w-” on the monitoring unit is for water sensor detecting input. When water is detected inside the cabinet, the monitoring unit will transmit the alarm to the control center, and there is correlative alarm dry contact output (port AL4, AL5). It will close in abnormal situation.


(5) Temperature and humidity detection and alarm


The port “5V, T1, H1, GND” on the monitoring unit is for temperature and humidity sensor of battery compartment detecting input, and port “5V, T2(or T3), H2(or H3), GND” is for temperature and humidity sensor of equipment compartment detecting input. The monitoring unit can conduct real time detecting on temperature and humidity inside the compartment. When temperature and humidity sensor send out alarm signal, the monitoring unit will transmit the alarm signal to the control center, and there is correlative alarm dry contact output (port AL0, AL1). It will close in abnormal situation.


3. Technical Parameters of Monitoring Unit and Sensors


Environment Monitoring Unit

(1) 19”, 1U, power supply DC48V/AC220V

(2) Communication mode: RS232/RS485

(3) 8 analog inputs. 4 specially for temperature and humidity detecting, the other 4 for general analog detecting, universal input.

(4) 13 switch DI inputs, the port function can be redefined through programing.

(5) 14 switch DO outputs, the port function can be redefined through programing.

(6) LCD display, user friendly


Door Alarm


(1)Technical Parameters:


Contact power: ≤10W

Voltage: ≤28VDC

Current: ≤0.5A

Contact impedance: ≤300mΩ

Action distance: 35mm

Fixing mode: embedded

Safety standard(UL):94-HB


(2) Function:


When forcible entry (forcible opening the cabinet door) happens, the door sensor will send the door alarm signal, and transmit the alarm signal to the monitoring center in switching mode.


Power Failure Alarm


(1) Technical Parameters:


Coil voltage: AC220V

Power: ≤0.1W

Working temperature: -20°C ~ 70°C

Working humidity: 0% ~ 95%

Communication mode: contact output


(2) Function:


When AC power supply failure happens, the sensor will send AC power supply failure alarm signal, and transmit the alarm signal to the monitoring center in switching mode.


Smoke Sensor


(1) Technical Parameters:


Voltage: 5-24 VDC

Power: ≤1W

Working temperature: -20°C ~ 70°C

Working humidity: 0% ~ 95%

Communication mode: contact output


(2) Function:


When burning or smoke happens inside the cabinet, the sensor will send out alarm signal, and transmit the alarm signal to the monitoring center in switching mode.



Water Sensor


(1) Technical Parameters:


Voltage: 5-15 VDC

Power: ≤0.5W

Alarming water level: 5mm

Working temperature: -20°C ~ 70°C

Working humidity: 0% ~ 95%

Communication mode: contact output


(2) Function:


When water level inside the cabinet reach the alarming level, the sensor will send out alarm signal, and transmit the alarm signal to the monitoring center in switching mode.



Temperature Sensor


(1) Technical Parameters:


Voltage: +5VDC

Power: <0.5W

Temperature error: ±0.2°C

Temperature resolution: 0.0625°C

Working temperature: -50°C ~ 120°C

Working humidity: 0% ~ 95%

Communication mode: monobus


(2) Function:


When temperature inside the cabinet exceed the set range, the sensor will send out high temperature or low temperature alarm signal, and transmit the alarm signal to the monitoring center in switching mode.


Temperature Control Failure Alarm


(1) Technical Parameters:


Voltage: +5VDC

Power: <0.5W

Temperature error: ±0.5°C

Temperature resolution: 0.0625°C

Working temperature: -50°C ~ 120°C

Working humidity: 0% ~ 95%

Communication mode: monobus


(2) Function:


When temperature control device fails, the sensor will send out temperature control device failure alarm signal, and transmit the alarm signal to the monitoring center in switching mode.



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