RLN36 is a 36-channel network video recorder that is used for centrally controlling the devices that are connected to it. With this NVR, you can manage more cameras at the same time, set up detections, and link more alarm settings like alarm in/out.

To better learn the working principles and settings of this NVR, here are some instructions for your reference.

Note: You can click on the keywords below to jump to the corresponding section.
  1. Smart Detection 
  2. Buzzer
  3. Alarm In/Out
  4. Channel Management
  5. Upgrade

Smart Detection

Smart detection includes Smart Person, Vehicle, and Pet Detection. It is based on traditional motion detection but with advanced algorithms and technology, which can tell people, vehicles, and pets from other objects. You can set up detection sensitivity, detection zone, object size, etc. for the cameras via the NVR. 

Below are some configurations for your reference. 


Buzzer includes motion buzzer and exception buzzer. It is the sound that comes from the NVR when the cameras detect motions or the NVR detects abnormalities. Conditions like HDD full, HDD error, network disconnected and IP conflict will be marked as exceptions.
You could set up motion buzzer via the monitor, Reolink App, or Reolink Client. Please notice that the exception buzzer can only be set up via the monitor.
Below are some basic instructions for your reference. 

  • On Monitor

    1. Set up Motion Buzzer:
    Go to "Settings>Surveillance>Buzzer", and enable Buzzer. Then click "Daily schedule" to choose the schedule and detection type.
    2. Set up Exception Buzzer:
    Go to "Settings>Surveillance>Buzzer (Exception)" and select the exception type you want.
    For more details, you may refer to the articles below:
    How to Set up Motion Buzzer for PoE NVR (New UI)
    How to Set up Exception Buzzer for PoE NVR (New UI) 

  • On Reolink App

    1. Click Settings icon button to go to Device Settings>Channel Setting>Buzzer. If you want to enable/disable the alarm buzzer, please turn it on/off the Buzzer.
      Please notice that this setting will apply to all the cameras connected to the NVR.


    2. If you want to customize different buzzer settings for the cameras, please configure the buzzer schedule to achieve this function.

      For more details, please refer to How to Enable/Disable Alarm Buzzer for POE NVR via Reolink App.

  • On Reolink Client

    1. Go to Device Settings of your NVR and find Buzzer under Surveillance.


    2. Select the channel you want and ensure the Buzzer is Enabled.

Alarm In/Out

RLN36 can connect 8 alarm input devices and 4 alarm output devices at the same time.

Alarm in: IPC's smart PIR/motion/person/vehicle/pet detection that delivers alarm signals to the NVR;

Alarm out: email/FTP/horn/light and other forms of alarm software or hardware that deliver alarm signals to the user in a more intuitive way.

Common alarm-in devices: infrared detector (infrared contrast), electronic fence, door sensor, smoke detector, etc.

The alarm input is to receive the on/off signal, so the positive and negative poles are not distinguished, and the alarm input and GND (ground/earth) can be directly connected to the wires of the alarm-in device. Whether the alarm input device needs a power supply depends on the alarm input device itself.
For setting up Alarm In/Out, you could refer to the instructions below. 

  • On Monitor

    1. Click the Settings button and go to Surveillance>Alarm Input Settings.
    2. You can choose a channel (from the 8 channels), name the channel, and set the default state type (Normally close or Normally open).
    If you set the Type as Normally close, it means that the alarm-in device is under a normal condition when it is closed. But when it is open, it signifies an abnormal condition and will trigger an alarm.alarm_input_2.png
    3. Back to the Surveillance page and click Alarm Output Settings.
    4. On the Alarm Output Setting page, you can choose a channel (from the 4 channels), name the channel, set the default state type (Normally closeorNormally open), and set a delay (5/10/20 seconds).
    5. Associate the alarm-in device with the alarm-out device. Go back to the Surveillance page and click the Daily Schedule.
    6. Choose an alarm input channel and enable the current channel alarm input. You can customize IP Camera Alarm Schedule, Alarm Input Schedule, and Timer Schedule.

    For more details, you may refer to the articles below:
    An Introduction to Reolink RLN36
    How to Set up Alarm In/Out on NVR 

Channel Management

When a camera is successfully connected to the NVR, it will be distributed an IP address and a channel by the NVR for connection. Hence, with the NVR, you're able to check the status of all the connected cameras at the same time. On the channel management page, you're able to check the status of each channel/camera, delete the offline devices, arrange channel orders, etc.

Below are some basic instructions that you may refer to. 


As a centralized management system, RLN36 is able to upgrade both the NVR and the cameras that are connected to it. Below are some basic steps of upgrading for your reference. 

  • On Monitor (New UI)

    1. Unzip the firmware file (.pak file) on your PC and transfer it to a USB, then insert the USB into the NVR USB port.

    2. Log in to your Reolink PoE NVR on an NVR monitor, then go to Device Settings>System>Maintenance page.

    3. Choose the correct firmware file and start to upgrade.
      *If you only want to upgrade the firmware for the PoE NVR, you may click the Upgrade From USB and select the correct firmware file, then tap on the Upgrade button.
      *If you need to upgrade the firmware for cameras that are connected to the PoE NVR, please choose Upgrade IPC From USB, then select the correct firmware for each channel and click on the Upgrade button to start upgrading.

      For more details, please refer to How to Upgrade Firmware via PoE NVRs (New UI).
      For upgrading the NVR only, you can also refer to How to Upgrade Firmware via Reolink Client (New Client).

For more common settings for RLN36, you may refer to Device Settings for PoE NVRs.