netvox R311A Wireless Door-Window Sensor User Manual
- October 27, 2023
- netvox
Table of Contents
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.
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:
Appearance
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 LoRaWAN™ 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.
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 according to Min Interval.
---|---
Low Voltage Warning
| Low Voltage | 2.4V |
|---|
Data Report
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 LoRaWAN Application Command
document and http://loraresolver.netvoxcloud.com:8888/page/index
5.1 Example of ReportDataCmd
FPort ：0x06
| Bytes | 1 | 1 | 1 | Var(Fix=8 Bytes) |
|---|---|---|---|---|
| Version | DeviceType | ReportType | NetvoxPayLoadData |
Version– 1 byte –0x01——the Version of NetvoxLoRaWAN Application Command
Version
DeviceType– 1 byte – Device Type of Device
The devicetype is listed in Netvox LoRaWAN Application Devicetype doc
ReportType – 1 byte –the presentation of the NetvoxPayLoadData ，according the
devicetype
NetvoxPayLoadData– Fixed bytes (Fixed =8bytes)
| Device | DeviceType | ReportType | NetvoxPayLoadData |
|---|---|---|---|
| R311A | 0x02 | 0x01 | Battery (1Byte, unit:0.1V) |
| 1:on) | Reserved |
(6Bytes,fixed 0x00)
Uplink: 0102011C01000000000000
1 byte (01): Version
2™ byte (02): DeviceType 0x02 — R311A
3™ byte (01): ReportType
4″ byte (1C): Battery—2.8v ,1C Ha=28 Dee 280.1V=2.8V
5″ byte (01): Contact Switch On
6″ ~ 11″ byte (000000000000): Reserved
5.2 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)
Description| Device| Cmd
ID| Device
Type| NetvoxPayLoadData
---|---|---|---|---
Config
ReportReq| R311A| 0x01| 0x02| MinTime
(2bytes Unit:s)| MaxTime
(2bytes Unit:s)| BatteryChange
(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)| BatteryChange
(1byte Unit:0.1v)| Reserved
(4Bytes,Fixed 0x00)
(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 ）
5.3 Example for MinTime/MaxTime logic
Example#1 based on MinTime = 1 Hour, MaxTime= 1 Hour, Reportable Change i.e.
BatteryVoltageChange=0.1V
Note:
MaxTime=MinTime. Data will only be report according to MaxTime (MinTime)
duration regardless BatteryVoltageChange value.
Example#2 based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change
i.e. BatteryVoltageChange= 0.1V.
Example#3 based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change
i.e. BatteryVoltageChange= 0.1V.
Note:
- The device only wakes up and performs data sampling according to MinTime Interval. When it is sleeping, it does not collect data.
- 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.
- 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.
- 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.
Installation
- This product does not have a waterproof function. After the screening is completed, please place it indoors.
- 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.
- The battery installation method is shown in the figure below (battery with “+” facing outward).
- 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. 
- 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.
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.
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 opening and closing state
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.