netvox R311A User manual

Model：R311A
Wireless Door/Window Sensor
Wireless Door/Window Sensor
R311A
User Manual
Copyright©Netvox Technology Co., Ltd.
This document contains proprietary technical information which is the property of NETVOX Technology. It shall be maintained
in strict confidence and shall not be disclosed to other parties, in whole or in part, without written permission of NETVOX
Technology. The specifications are subject to change without prior notice.

1
Table of Content
1. Introduction.............................................................................................................................................................2
2. Appearance..............................................................................................................................................................3
3. Main Features..........................................................................................................................................................3
4.Set up Instruction .....................................................................................................................................................4
5. Data Report .............................................................................................................................................................5
6. Installation...............................................................................................................................................................8
7. Important Maintenance Instruction.......................................................................................................................10

2
1. Introduction
R311A is a long-distance window/door sensor based on the LoRaWAN open protocol (Class A).
LoRa Wireless Technology:
LoRa is a wireless communication technology famous for its long-distance transmission and low power consumption. Compared
with other communication methods, LoRa spread spectrum modulation technique greatly extend the communication distance. It
can be widely used in any use case that requires long-distance and low-data wireless communications. For example, automatic
meter reading, building automation equipment, wireless security systems, industrial monitoring. It has features like small size,
low power consumption, long transmission distance, strong anti-interference ability and so on.
LoRaWAN:
LoRaWAN uses LoRa technology to define end-to-end standard specifications to ensure interoperability between devices and
gateways from different manufacturers.
This device has been certified by the LoRa Alliance and is allowed to use the following logo on the product:

3
2. Appearance
3. Main Features
Compatible with LoRaWAN
2 sections of 3V CR2450 button battery power supply
Reed switch status detection
Simple operation and setting
Protection level IP30
Compatible with LoRaWANTM Class A
Frequency hopping spread spectrum technology
Configuration parameters can be configured through third-party software platforms, data can be read and alarms can be set via
SMS text and email (optional)
Available third-party platform: Actility / ThingPark, TTN, MyDevices/Cayenne
Low power consumption and long battery life
Note:
Battery life is determined by the sensor reporting frequency and other variables, please refer to
http://www.netvox.com.tw/electric/electric_calc.html On this website, users can find battery life time for varied models at
different configurations.
Function Key
Magnet
Indicator

4
4.Set up Instruction
On/Off
Power on Insert batteries. (users may need a flat blade screwdriver to open);
Insert two sections of 3V CR2450 button batteries and close the battery cover.)
Turn on Press any function key till green and red indicator flashes once.
Turn off
(Restore to factory setting) Press and hold the function key for 5 seconds till green indicator flashes for 20 times.
Power off Remove Batteries.
Note:
1. Remove and insert the battery; the device memorizes previous on/off state by default.
2. On/off interval is suggested to be about 10 seconds to avoid the interference of capacitor
inductance and other energy storage components.
3. Press any function key and insert batteries at the same time; it will enter engineer testing mode.
Network Joining
Never joined the network
Turn on the device to search the network.
The green indicator stays on for 5 seconds: success
The green indicator remains off: fail
Had joined the network
Turn on the device to search the previous network.
The green indicator stays on for 5 seconds: success
The green indicator remains off: fail
Function Key
Press and hold for 5 seconds
Restore to factory setting / Turn off
The green indicator flashes for 20 times: success
The green indicator remains off: fail
Press once The device is in the network: green indicator flashes once and sends a report
The device is not in the network: green indicator remains off
Sleeping Mode
The device is on and in the
network
Sleeping period: Min Interval.
When the reportchange exceeds setting value or the state changes: send a data report ac
cording to
Min Interval.
Low Voltage Warning
Low Voltage 2.4V

5
5. Data Report
Data report configuration and sending period are as following:
Example of ConfigureCmd
FPort：0x07
Bytes 1 1 Var (Fix =9 Bytes)
CmdID DeviceType NetvoxPayLoadData
CmdID– 1 byte
DeviceType– 1 byte – Device Type of Device
NetvoxPayLoadData– var bytes (Max=9bytes)
Min Interval
(Unit:second)
Max Interval
(Unit:second) Reportable Change Current Change≥ Reportable Change
Current Change＜
Reportable Change
Any number between
1~65535
Any number between
1~65535 Can not be 0. Report per Min Interval
Report
per Max Interval
The device will immediately send a version packet report along with an uplink packet including reed switch status and
battery voltage.
Data will be reported by default setting before any configuration.
Default setting:
Maximum time: 3600s
Minimum time: 3600s (Detect the current voltage value every 3600s by default setting)
Battery change : 0x01 (0.1V)
R311A status:
When the R311A status changes, it will send a warning report.
Window/Door sensor open : 1
Window/Door sensor close : 0
The reported data is decoded by the Netvox LoRaWANApplication Command document and
http://loraresolver.netvoxcloud.com:8888/page/index

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(1)Command Configuration:
MinTime = 1min、MaxTime = 1min、BatteryChange = 0.1v
Downlink：0102003C003C0100000000 003C(Hex) = 60(Dec)
Response：
8102000000000000000000（Configuration success）
8102010000000000000000（Configuration failure）
(2)Read Configuration:
Downlink：0202000000000000000000
Response：
8202003C003C0100000000（Current configuration）
Example for MinTime/MaxTime logic:
Example#1 based on MinTime = 1 Hour, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange=0.1V
Max Time Max Time
Sleeping (Min Time) Sleeping (Min Time)
1H 2H 3H
Note:
MaxTime=MinTime. Data will only be report according to MaxTime (MinTime) duration regardless BatteryVoltageChange
value.
Description Device CmdID Device
Type NetvoxPayLoadData
Config
ReportReq
R311A
0x01
0x02
MinTime
(2bytes Unit:s) MaxTime (2bytes Unit:s)
Battery
Change
(1byte Unit:0.1v)
Reserved
(4Bytes,Fixed 0x00)
Config
ReportRsp 0x81 Status (0x00_success) Reserved (8Bytes,Fixed 0x00)
ReadConfig
ReportReq
0x02
Reserved
(9Bytes,
Fixed 0x00)
ReadConfig
ReportRsp 0x82 MinTime (2bytes Unit: s) MaxTime (2bytes Unit: s)
Battery
Change
(1byte Unit:0.1v)
Reserved
(4Bytes,Fixed 0x00)
Wake up and
collects data
REPORTS 2.8V
Wakes up and
collects data
REPORTS 2.8V
Wakes up and
collects data
REPORTS 2.8V

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Example#2 based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange= 0.1V.
MaxTime
Sleeping (MinTime) sleeping sleeping sleeping
0H 15th M 30th M 45th M 1H 2H
Example#3 based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange= 0.1V.
MaxTime
sleeping sleeping ...
0H 15th M 30th M 45th M 1H 1H 10th M 1H 25th M 1H 40th M 1H 55th M 2H 10th M
Note:
1) The device only wakes up and performs data sampling according to MinTime Interval. When it is sleeping, it does not collect
data.
2) The data collected is compared with the last data reported. If the data change value is greater than the ReportableChange value,
the device reports according to MinTime interval. If the data variation is not greater than the last data reported, the device
reports according to MaxTime interval.
3)We do not recommend to set the MinTime Interval value too low. If the MinTime Interval is too low, the device wakes up
frequently and the battery will be drained soon.
4) Whenever the device sends a report, no matter resulting from data variation, button pushed or MaxTime interval, another cycle
of MinTime / MaxTime calculation is started.
Wakes up and
collects data
2.8V
Does not report
Wakes up and
collects data
REPORTS 2.8V
Wakes up and
collects data
REPORT 2.8V
Wakes up and
collects data
REPORTS
2.8V
Wakes up and
collects data
2.7V |2.7-2.8|=0.1
REPORTS 2.7V
Wakes up and
collects data
2.7V
Does not report
Wakes up and
collects data
2.7V
Does not report
Wakes up and
collects data
2.7V
Does not report
Wakes up and
collects data 2.7V
Does not report
Wakes up and
collects data
2.7V
Does not report
Wakes up and
collects data
REPORTS
2.7V
Wakes up and
collects data
2.8V
Does not report
Users push the button,
REPORTS 2.7V.
Recalculate MaxTime.
Wakes up and
collects data
2.8V
Does not report
Wakes up and
collects data
2.8V
Does not report

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6. Installation
(1) This product does not have a waterproof function. After the screening is completed, please place it indoors.
(2) The door magnetic magnet part and the body part are installed on both sides of the door joint or the window joint, and the
distance between the two needs to be less than 2cm ; the dust in the installation position of the equipment needs to be wiped
clean and then affixed to the equipment.
(3) The battery installation method is shown in the figure below (battery with "+" facing outward).
(4) When installing the device, the magnet must move along the X axis relative to the sensor.
If the magnet moves along the Y axis relative to the sensor, it will cause repeated reports due to the magnetic field.

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1.Tear off 3M release paper of the magnet body and attach the
body to the door frame and stick it to the door in parallel
with the door magnet body. (please do not stick it on the
rough door to avoid falling off after using the device for a
long time).
As shown in the enlarged view on the right
Note:
Wipe the door clean before installation to avoid dust on the
door and affect the adhesion of the device.
Do not install the device in a metal shielded box or other
electrical equipment around it to avoid affecting the
wireless transmission of the device.
The installation distance between the magnet body and the
magnet should be less than 2cm.
This figure shows the scene where the door magnetic sensor
(R311A) is applied to the door (opening and closing).
It can also be applied to the following scenarios:
Door, window
drawer
Machine room door
Archive room
Closet
Refrigerator and freezer
Cargo ship door
Garage Door
Places which are necessary to detect the op
ening and
closing state
2.When the door is opened, the magnetic body of the door is
separated from the magnet, and the magnetic device sends
an "alarm" message.
When the door is closed, the magnetic body of the door is
merged with the magnet, the device returns to the "normal"
state, and the status information of the off is sent.

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7. Important Maintenance Instruction
Kindly pay attention to the following in order to achieve the best maintenance of the product:
• Keep the device dry. Rain, moisture, or any liquid, might contain minerals and thus corrode electronic circuits. If the device gets
wet, please dry it completely.
• Do not use or store the device in dusty or dirty environment. It might damage its detachable parts and electronic components.
• Do not store the device under excessive heat condition. High temperature can shorten the life of electronic devices, destroy
batteries, and deform or melt some plastic parts.
• Do not store the device in places that are too cold. Otherwise, when the temperature rises to normal temperature, moisture will
form inside, which will destroy the board.
• Do not throw, knock or shake the device. Rough handling of equipment can destroy internal circuit boards and delicate
structures.
• Do not clean the device with strong chemicals, detergents or strong detergents.
• Do not apply the device with paint. Smudges might block in the device and affect the operation.
• Do not throw the battery into the fire, or the battery will explode. Damaged batteries may also explode.
All of the above applies to your device, battery and accessories. If any device is not working properly, please take it to the nearest
authorized service facility for repair.