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Raytac MDBT50Q-RX 0040


Raytac MDBT50Q-RX 0040 is a USB powered extender. Extenders are used to extend the range and number of node connections in a network. The device is must be powered by a 5V source via the USB plug, typically using a USB power adapter or a 5V wired network. Meshtech recommends USB power adapters from SmartLine. The following USB Charger 1A is recommended to power Raytac MDBT50Q-RX 0040.

This hardware is sourced from Raytac Corporation. See MDBT50Q-RX for hardware details.

The Bluetooth chipset is nRF52840 from Nordic Semiconductor.

  • Firmware Model Number: 0x0040
  • Downlinks: Up to 18
  • DFU Type: BLE SMP

Normal Operation Procedure

This device will operate as extender by default, but it can also operate as a gateway (root extender) if connected to a gateway host. It will only work as a gateway if plugged into a gateway host before it has been configured as an extender (switched out of storage mode). If the device has been configured as extender, a factory reset must be performed before plugging it into a gateway host to use it as a gateway. Similar to all Meshtech extenders the Raytac MDBT50Q-RX 0040 is delivered in storage mode. The normal operation device-mode for this device is connected. The device is discoverable from nearby systems after 5V is applied on USB port, generating storage mode events.

Wireless range will depend on many factors and are reduced by obstacles and other devices' wireless interference. Typically around 15m between extenders in an indoor environment - further is possible if line of sight/outdoor/minimal interference, shorter might be required to get through thick walls/interference.

For best performance it is recommended to follow these rough guidelines when deploying extenders:

  • Start near a gateway.
  • Line of sight or minimal number of obstacles between extenders where possible.
  • Two or more possible uplink devices towards gateway.
  • Mount above person height if on wall. Avoid mounting closer than 30cm from ceiling and corner/walls. If mounting on ceiling, avoid mounting closer than 30cm from walls.
  • Avoid mounting so antenna is touching metal.

Service Mode

Service Mode can be used to perform DFU upgrades and/or factory reset of a device when provisioning information (i.e. network key) is unknown/lost. To enter Service Mode, button need to be pressed while powering on device; in this device's case - while inserting in to USB port, or while powering on USB port. Device being in Service Mode is indicated by blue LED blinking rapidly. Device is discoverable by "SM" device name while in Service Mode. It runs BLE SMP and can be connected to and upgraded. To perform factory reset, press button continuously for more than 5 seconds while device is in Service Mode. Blue LED will light constant while button is held, and should be held until blue LED turn off (5s) to perform factory reset. If no connection is established or no factory reset command is received, device will reboot and start in previous mode after 2 minute timeout. Timeout is extended while BLE connection is established and for additional 2 minutes after disconnect.

Device Modes

  • Connected
  • Storage


Property Reported Default Value From Version
0x8000 - Model Number Yes -
0x8001 - Firmware Version Yes -
0x8002 - Hardware Version Yes -
0x8003 - MAC Address No -
0x8005 - Production Info Extended No -
0x8007 - Variant Yes -
0x8008 - Public Key No -
0x8020 - Power Source Yes 0x01
0x8101 - Uptime Yes -
0x8110 - Device Mode Yes 0x03
0x8120 - Firmware Update State Yes -
0x8121 - Start Firmware Update - -
0x8122 - Firmware Update Control - -
0x8160 - Ping Counter No 0x0000
0x8201 - Debug No 0x00000000 1.2.0
0x8211 - RSSI Throttling Limit Yes 0x00
0x8212 - Downlink Configuration-2 Yes 0x03000112
0x8230 - General Advertisement reporting No 0x000000
0x8300 - Soft Reset - -
0x8301 - Factory Reset - -
0x8302 - Request Property Reporting - -
0x8303 - Start Upstream Throughput Test - -
0x8305 - Throughput Test Packet Counter No 0x00000000
0x8320 - Destroy Network Below - -
0x8321 - Destroy Network Below Child - -
0x8400 - Performance Counter Reporting Interval Yes 0x0000
0x8401 - Performance Counter Reporting Priority Yes 0x02
0x8850 - EnOcean Config (BETA) Yes 0x0002 1.1.0
0x9000 - Scan Window Yes 0x18 (24 %)
0x9002 - Network Lock Yes 0x00
0x9006 - Preferred Parent Yes 0x000000000000
0x9020 - Offer RSSI threshold (s8) Yes 0x000000000000
0x9100 - Uplink RSSI Yes -
0x9900 - Button 0 Counter Yes -
0xFF00 - Scan Mode - - 1.1.0


Measurement From Version
0x8410 - Upstream Packets Sent
0x8411 - Upstream Packets Lost
0x8412 - Downstream Packets Sent
0x8413 - Downstream Packets Lost


Event From Version
0x998000 - Button 0 Pressed
0x8858 - EnOcean PTM 215B Data (BETA) 1.1.0

Release Notes

Release Notes


The firmware uses the following licenses.