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MikroTik KNOT RB924i-2nD-BT5&BG77 Gateway 2 x Ethernet ports
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Mikrotik (KNOT) RB924i-2nD-BT5 & BG77
KNOT is a truly universal device with exceptional connectivity options and protocol support. It is an IoT gateway that uses narrowband technology (Narrow Band, NM) and CAT-M. Due to the low-cost, low-bandwidth cellular connection, it is compatible with countless mobile operators around the world. KNOT can monitor embedded GPIOs, convert Modbus protocol to TCP, and even forward Bluetooth packets to TCP / IP network via HTTPS and MQTT. You can use KNOT as a TCP bridge from wired Modbus sensors to send readings to a Modbus server. KNOT provides wireless connectivity to wired sensors and actuators, such as electricity meters and relays.
How would all this work in real life?
- Could be used as a backup connection for Ethernet or as a management channel for your network. The monthly NB / CAT-M plan is much cheaper than LTE. Why spend extra money on bandwidth you don't need? For example, you can manage a KNOT vending machine with temperature and humidity sensors on just a few megabytes per day.
-Let's imagine a hospital. Hospitals generally have to spend a lot of resources on inventory verification. Let's fix that - put inexpensive Bluetooth tags on all the important items. Add a KNOT device in each storage room. Now the hospital management always knows if the equipment is returned to its place. Why stop there? You can add temperature sensors to medical supplies and use the KNOT to keep track.
- KNOT is also a great tool for most IoT applications in outdoor enclosures. It comes with a DIN rail mount that allows easy integration with all kinds of setups: from agriculture and asset tracking to cold chain monitoring, industrial manufacturing, etc.
KNOT can monitor embedded GPIOs, convert Modbus protocol to TCP, and even forward Bluetooth packets to TCP / IP network via HTTPS and MQTT. You can use KNOT as a TCP bridge from wired Modbus sensors to send readings to a Modbus server. Yes, KNOT provides wireless connectivity to wired sensors such as electricity meters and relays. It could be used as a backup connection for Ethernet or as a management channel for your network. The monthly NB / CAT-M plan is much cheaper than LTE. Why spend extra money on bandwidth you don't need? For example, you can manage a KNOT vending machine with temperature and liquid sensors on just a few megabytes per day.
KNOT has many connectivity options and protocol support: 2.4GHz wireless, Bluetooth, 2 x 100Mbps Ethernet ports with PoE-in and PoE-out, Micro-USB. Maximum comfort at the lowest cost! With the Bluetooth interface, you can use KNOT for asset tracking and telemetry based on Bluetooth announcement packets. KNOT supports any BLE tag that sends advertising data. iBeacon, Eddystone or any other format. It has powerful filters to forward only relevant packets and ignore others.
KNOT is also a great tool for most outdoor enclosure IoT applications. It comes with a DIN rail mount that allows easy integration with all kinds of setups: from agriculture and asset tracking to cold chain monitoring, industrial manufacturing, etc.
Key features
GPS / GNSS support (GPS, GLONASS, BeiDou, Galileo). SMA female connector, external antenna not included.
Narrowband and cat LTE Technology M1 (NB / CAT-M). SMA female connector
Integrated WiFi (802.11b / g / n), 300 Mbps, 2x2 MIMO
(2) 10 / 100Mbps (1x PoE IN, 1x PoE out)
Integrated Bluetooth 5.2
Operating system: RouterOS with L4 license with MQTT support
SIM slot (Nano SIM)
Additional RS485 / Modbus and GPIO interfaces
Wide operating temperature -40 to + 70 ° C
Wide range of power options: DC connector, PoE, Micro USB
Key features
GPS / GNSS support (GPS, GLONASS, BeiDou, Galileo). SMA female connector, external antenna not included.
Narrowband and cat LTE Technology M1 (NB / CAT-M). SMA female connector
Integrated WiFi (802.11b / g / n), 300 Mbps, 2x2 MIMO
(2) 10 / 100Mbps (1x PoE IN, 1x PoE out)
Integrated Bluetooth 5.2
Operating system: RouterOS with L4 license with MQTT support
SIM slot (Nano SIM)
Additional RS485 / Modbus and GPIO interfaces
Wide operating temperature -40 to + 70 ° C
Wide range of power options: DC connector, PoE, Micro USB
specs
CPU QCA9531 650 MHz
Ethernet ports 100 Mbps x 2
100 Mbps Ethernet ports with PoE-out x 1
RAM 64 MB
Storage 16 MB flash
Wireless 2.4 GHz 802.11 b / g / n dual-chain
Wireless antenna gain 1.5 dBi
Bluetooth antenna gain 2 dBi
360 ° antenna
Bluetooth Version 5.2
Dimensions 122 x 87 x 26 mm
RouterOS Operating System, License level 4
USB port 1 microUSB port type AB
SIM slots 1 Nano SIM
Integrated GPS Yes (GPS, GLONASS, BeiDou, Galileo)
Operating temperature -40 ° C to + 70 ° C
Feeding
PoE-in input voltage 12-57 V
Number of DC inputs 3 (PoE-in, DC connector, MicroUSB)
Supported input voltage 12-57 V (PoE-in. DC jack), 5 V (MicroUSB)
PoE 802.3af / atPoE-out1 (Ether2) output ports
Nominal voltage from a