netvox R311CA Wireless Dry Contact Sensors User Manual

R311CA Wireless Dry Contact Sensors
User Manual

R311CA Wireless Dry Contact Sensors

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

The R311CA is a dry contact detection device for Netvox Class A type devices based on the LoRaWAN open protocol and is compatible with LoRaWAN protocol. When any dry contact of R311CA detects a change, R311CA will send a message to the gateway.
LoRa Wireless Technology:
LoRa is a wireless communication technology dedicated to long distance and low power consumption. Compared with other communication methods, LoRa spread spectrum modulation method greatly increases to expand the communication distance. Widely used in long-distance, low-data wireless communications. For example, automatic meter reading, building automation equipment, wireless security systems and industrial monitoring. Main features include small size, low power consumption, transmission distance, 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.

Appearance

Main Features

• 2 x 3V CR2450 button batteries
• Compatible with LoRaWAN
• Adopt SX1276 wireless communication module
• Dry contact detection
• Frequency hopping spread spectrum technology
• Configuring parameters and reading data via the third-party software platforms, and set alarms via SMS text and email (optional)
• Applicable to the third-party platforms: Activity/Thing Park/TTN/ My Devices/Cayenne

Note: Battery life is determined by sensor reporting frequency and other variables.
Please refer to web: http://www.netvox.com.tw/electric/electric_calc.html
In this website, users can find battery lifetime for various models at different configurations.

Set up Instruction

On/Off

Power on| Insert batteries (users may need a flat screwdriver or other tools to open the battery cover) Insert two sections 3V CR2450 button batteries and close the battery cover.
Note: Require 2 button batteries to supply power at the same time.
---|---
Turn on| Press any function key until the red and green indicator lights flash at the same time: success
Turn off (Restore to original setting)| Press simultaneously and hold two function keys for 5 seconds, and then the green indicator will flash continuously. After release function keys, the green indicator flashes 20 times and the device will turn off automatically.
Power off| Remove Batteries
Note:| 1. Remove and insert the battery, and 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. If press any function key and insert batteries at the same time, it will enter engineer testing mode.

Network Joining

Never join the network| Turn on the device to search the network to join.
The green indicator stays on for 5 seconds: success
The green indicator remains off: fail
---|---
Had joined the network
(Not in the original setting)| Turn on the device to search the previous network to join.
The green indicator stays on for 5 seconds: success
The green indicator remains off: fail
Fail to join the network| Suggest checking device verification on gateway or consulting your platform server provider if the device fails to join the network.

Function Key

Press and hold for 5 seconds| Restore to the original setting / Turn off
The green indicator flashes 20 times: success
The green indicator remains off: fail
---|---
Press once| The device is in the network: the green indicator flashes once and sends a report
The device is not in the network: the green indicator remains off

Sleeping Mode

The device is turn on and join in the network| Sleeping period: Min Interval.
When the report change exceeds the default or the state of the device changes: send a data report according to Min Interval.
---|---

Low Voltage Warning

*Suggest removing batteries if the device is not used to save power.

Data Report

After power on, the device will immediately send a version packet report and a data report including temperature, humidity, and voltage.
The device sends data according to the default configuration before any other configuring.
Default setting:
Report Max Time: 1 H (3600 s)
Report Min Time: 1 H (3600 s) (Default: Every Min Interval will detect the state of the dry contact one time)
Battery Voltage Change: 0 x 01 (0.1 V)
Triggering the dry contact:
When the dry contact detects the state changing, the report will be sent immediately.
Open: 1
Close: 0
Note:

1. The cycle of the device sending the data report is according to the default.
2. The interval between two reports must be the Min Time.

The device reported data parsing please refer to Netvox LoraWAN Application Command document and Netvox Lora
Command Resolver http://loraresolver.netvoxcloud.com:8888/page/index
Data report configuration and sending period are as following:

Min Interval
(Unit: second)| Max Interval
(Unit: second)| Re portable Change| Current Change ≥
Re portable Change| Current Change ＜
Re portable Change
---|---|---|---|---
Any number between
1~65535| Any number between
1~65535| Can not be 0| Report per Min Interval| Report per Max Interval

5.1 Example of Report Data Cmd
FPort: 0 x 06

Version– 1 byte –0 x 01——the Version of NetvoxLoRaWAN Application Command Version
Device Type– 1 byte – Device Type of Device
The device type is listed in Netvox LoRaWAN Application Devicetype.doc
Report Type – 1 byte –the presentation of the Netvox Pay Load Data, according the device type
Netvox Pay Load Data– Fixed bytes (Fixed =8 bytes)

Device

| Device Type| Report Type|

Netvox Pay Load Data

---|---|---|---
R311CA| 0 x 4C| 0 x0 1| Battery
(1 Byte, unit: 0.1 V)| Status 1
(1 Byte 0:off 1:on)| Status 2
(1 Byte 0:off 1:on)| Reserved
(5 Bytes, fixed 0 x 00)

Up link: 014C011C01000000000000
1st byte (01): Version
2nd byte (4C): DeviceType 0x4C － R311CA (R313CA)
3rd byte (01): ReportType
4 th byte (1C): Battery －2.8v , 1C Hex=28 Dec 28*0.1v=2.8v
5 th byte (01): Alarm
6 th byte (00): No Alarm
7 th ∼ 11 th byte (0000000000): Reserved

Example of Configure Cmd
FPort ：0 x 07

CmdID– 1 byte
Device Type– 1 byte – Device Type of Device
Netvox Pay Load Data– var bytes (Max=9 bytes)

Description| Device| CmdID| Device Type| Netvox Pay Load Data
---|---|---|---|---
Config Report
Req| R311CA| 0 x 01| 0 x 4 C| Min Time
(2 bytes Unit:s)| Max Time
(2 bytes Unit:s)| Battery Change
(1 byte Unit: 0.1 v)| Reserved
(4 Bytes, Fixed 0 x 00)
Config Report
Rsp| 0 x 81| Status (0 x 00_success)| Reserved (8 Bytes, Fixed 0 x 00)
Read Config Report Req| 0 x 02| Reserved (9 Bytes, Fixed 0 x 00)
Read Config Report Rsp| 0 x 82| Min Time
(2 bytes Unit:s)| Max Time
(2 bytes Unit:s)| Battery Change
(1 byte Unit: 0.1 v)| Reserved
(4 Bytes,Fixed 0 x 00)

1. Configure R311CA device parameter Min Time = 1min, Max Time = 1min, Battery Change = 0.1 v
   Down link:  014C003C003C0100000000
   Device return:
   814C000000000000000000 (configuration success)
   814C010000000000000000 (configuration failure)

2. Read R311CA device parameter
   Down link: 024C000000000000000000
   Device retur:  824C003C003C0100000000 (device current parameter)

Example#1 based on Min Time = 1 Hour, Max Time= 1 Hour, Re portable Change i.e. Battery Voltage Change=0.1 V

Note: Max Time=Min Time. Data will only be report according to Max Time (Min Time) duration regardless Battery Voltage Change value.
Example#2 based on Min Time = 15 Minutes, Max Time= 1 Hour, Re portable Change i.e. Battery Voltage Change= 0.1 V.

Example#3 based on Min Time = 15 Minutes, Max Time= 1 Hour, Re portable Change i.e. Battery Voltage Change= 0.1 V.

Notes:

1. The device only wakes up and performs data sampling according to Min Time Interval. When it is sleeping, it does not collect data.
2. The collected data is compared with the last reported data. If the variation of the data is greater than the value of Re portable Change, the device will report according to Min Time interval. If the data variation is not greater than the last reported data, the device will report according to Max Time interval.
3. We do not recommend setting the Min Time Interval value too low. If the Min Time Interval is too low, the device will wake up frequently and the battery will be drained soon.
4. When the device sends a report, no matter the data changes, button is pushed or Max Time interval comes, another cycle of Min Time/Max Time calculation starts.

Installation

1. Remove the 3 M release paper on the back of the device and attach the device to the smooth wall (please do not stick it to the rough wall to avoid falling off after a longtime usage).
   Note:
   • Wipe the wall surface before installation to avoid dust on the wall surface that affect the effect of the paste.
   • 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.

2. When the device detects the state of dry contact changing, the data report will be sent immediately.

3. If detect the battery voltage exceeding the value of the variation at Min Time, the report will be sent immediately.

4. No matter the state of the dry contact changes, the data report must be sent at Max Time.
   Note:
   •  When the dry contact is close, the state of the data is “0”. When the dry contact is open, the state of that is “1”.

The dry contact sensor (R311CA) can be applied to the following scenes:

• Various switches and buttons
• The output of the dry contact of the sensor
• The operating state of the device
• Monitoring the condition of doors and windows in home or in business

Important Maintenance Instruction

The device is a product with superior design and craftsmanship and should be used with care.
The following suggestions will help you use the warranty service effectively.

• Keep the equipment dry. Rain, moisture and various liquids or water may contain minerals that can corrode electronic circuits. In case the device is wet, please dry it completely.
• Do not use or store in dusty or dirty areas. This way can damage its detachable parts and electronic components.
• Do not store in excessive heat place. High temperatures can shorten the life of electronic devices, destroy batteries, and deform or melt some plastic parts.
• Do not store in excessive cold place. 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. Treating equipment roughly can destroy internal circuit boards and delicate structures.
• Do not wash with strong chemicals, detergents, or strong detergents.
• Do not paint the device. Smudges can make debris block detachable parts up and affect normal operation.
• Do not throw the battery into the fire to prevent the battery from exploding. Damaged batteries may also explode.

All the above suggestions apply equally to your device, batteries, and accessories.
If any device is not operating properly.
Please take it to the nearest authorized service facility for repairing.

References

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