netvox R311CA User manual

Model：R311CA
Wireless Dry Contact Sensor
Wireless Dry Contact Sensor
User Manual

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Table of Content
1. Introduction................................................................................................................................................................ 2
2. Appearance................................................................................................................................................................. 3
3. Main Features............................................................................................................................................................. 4
4.Set up Instruction.........................................................................................................................................................4
4.1 Power on and Turn on / off...............................................................................................................................4
4.2 Join Into Lora Network.................................................................................................................................... 4
4.3 Function Key.................................................................................................................................................... 5
4.4 Data Report.......................................................................................................................................................5
5. Restore to Factory Setting.......................................................................................................................................... 5
6. Sleeping Mode............................................................................................................................................................6
7. Low Voltage Alarming............................................................................................................................................... 6
9. Installation.................................................................................................................................................................. 6
10. Important Maintenance Instruction.......................................................................................................................... 7

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1. Introduction
The R311CA is a switch detection device for Netvox ClassA type devices based on the LoRaWAN
open protocol and is compatible with the LoRaWAN protocol. When any dry contact of the R311CA
detects a change, the R311CA sends 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, 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.
This device has been certified by the LoRa Alliance and is allowed to use the following logo on the
product:

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2. Appearance

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3. Main Features
Compatible with LoRaWAN
2 x 3V CR2450 button battery power supply
Detectable voltage value and dry contact status
Simple operation and setting
4.Set up Instruction
4.1 Power on and Turn on / off
(1) Power on (insert batteries): open the battery cover (users may need a flat blade screwdriver to
open); insert batteries and close the battery cover.
(2) Turn on. If the device had never joined in any network or at factory setting mode, after powering
on, the device is at off mode by default setting. Press function key and release to turn on the device.
The green and red indicator will flash once to show that R311CA is turned on.
(3) Turn off. Press and hold function key for 5 seconds till the green indicator flashes quickly and
release. The green indicator will flash 20 times to show that R311CA is turned off.
(4) Remove batteries (power off) when R311CA is on. Wait till 10 seconds after the capacitance
discharging. Insert batteries again, the device will be setted to be on mode by default. There is no
need to press function key to turn on the device. The red and green indicators will both flash and
then light off.
Note:
1. The interval between turning on/off or powering off/on is suggested to be about 10 seconds to
avoid the interference of capacitor inductance and other energy storage components.
2. Do not press function key and insert batteries in the same time, otherwise, it will enter engineer
testing mode.
4.2 Join Into Lora Network
To join R311CA into LoRa network to communicate with LoRa gateway.
The network operation is as following:
(1) If R311CA had never joined any network or at factory setting mode, turn on the device; it will
search an available LoRa network to join. The green indicator will stay on for 5 seconds to show it
joins into the network, otherwise, the green indicator does not work.
(2) If R311CA had been joined into a LoRa network, remove and insert the batteries; the green
indicator will stay on for 5 seconds to show it joins into the network.

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4.3 Function Key
(1) Press and hold both function keys for 5 seconds to reset to factory setting. After restoring to
factory setting successfully, the green indicator will flashes quickly 20 times.
(2) Press function key; the green indicator will flash once and the device will send a data report.
4.4 Data Report
When the device is turned on, it will immediately send a version package and data report.
Data will be reported once per hour by default setting.
Maximum time: 3600s
Minimum time: 3600s
Default reportchange:
Battery ---- 0x01 (0.1V)
Note: MinInterval is the sampling period for the Sensor. Sampling period >= MinInterval.
Dry contact trigger:
When the dry contact detects a status change, it will immediately issue a report.
Pull open: 1, closed: 0.
Data report configuration and sending period are as following:
5. Restore to Factory Setting
R311CA saves data including network key information, configuration information, etc. To restore to
factory setting, users need to execute below operations.
1. Press and hold both function key for 5 seconds till the green indicator flashes and then release;
LED flashes quickly 20 times.
2. R311CA will be turned off mode after restoring to factory setting.
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

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6. Sleeping Mode
R311CA is designed to enter sleeping mode for power-saving in some situations:
(A) While the device is in the network → the sleeping period is one hour. (During this period,
if the reportchange is larger than setting value, it will wake up and send a data report).
(B) When it is not in the network → R311CA will enter sleeping mode and wake up every 15
seconds to search a network to join in the first two minutes. After two minutes, it will wake up
every 15 minutes to request to join the network.
If it’s at (B) status, to prevent this unwanted power consumption, we recommend that users
remove the batteries to power off the device.
7. Low Voltage Alarming
The operating voltage threshold is 2.4V. If the voltage is lower than 2.4V, R311CA will send a
low-power report to the Lora network.
9. Installation
(1) This product does not have a waterproof function. After the screening is completed, please place
it indoors.
(2) 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).
Note: To install the battery, use a screwdriver or similar tool to assist in opening the battery cover.

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10. Important Maintenance Instruction
Your device is a product of 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 moisture 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 can damage its detachable parts and electronic
components.
•Do not store in excessive heat. 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. Rough handling of equipment can destroy internal
circuit boards and delicate structures.
•Do not wash with strong chemicals, detergents or strong detergents.
•Do not apply with paint. Smudges can block debris in detachable parts and affect normal
operation.
•Do not throw the battery into a fire to prevent the battery from exploding. Damaged batteries
may also explode.
All of the above suggestions apply equally to your device, battery and accessories. If any device is
not working properly.
Please take it to the nearest authorized service facility for repair.