MikroTik IoT Gateway KNOT

KNOT can monitor onboard GPIOs, convert Modbus protocol to TCP, and even forward Bluetooth packets to TCP/IP network via HTTPS and MQTT.

You can use the KNOT as a TCP bridge from wired Modbus sensors to send readings to a Modbus server. Yes, the KNOT brings wireless connectivity to wired sensors, such as electricity meters and relays.

It could be used as a backup connection for the Ethernet or as a management channel for your network. NB/CAT-M monthly plan is much cheaper than LTE. Why spend extra money on bandwidth you don’t need? For example, you can manage a KNOT-powered vending machine with temperature and liquid sensors with only a few megabytes per day!

KNOT features so many protocol support and connectivity options:

2.4 GHz wireless, Bluetooth, 2x 100 Mbps Ethernet ports with PoE-in and PoE-out, Micro-USB. Maximum convenience at the lowest cost!

With the Bluetooth interface, you can use the KNOT for asset tracking and telemetry based on Bluetooth advertisement packets. KNOT supports any BLE tag that sends advertisement data. iBeacon, Eddystone or any other format.

It has powerful filters for forwarding only relevant packets and ignoring others.

KNOT is a great tool for most outdoor cabinet IoT applications as well. 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, and so on.

Bring flexible low-cost connectivity to the most remote or tricky areas with the MikroTik KNOT!

Specifications
Product code : RB924i-2nD-BT5&BG77
Architecture : MIPSBE
CPU : QCA9531
CPU core count : 1
CPU nominal frequency : 650 MHz
Dimensions : 122 x 87 x 26 mm
RouterOS license : 4
Operating System : RouterOS
Size of RAM : 64 MB
Storage size : 16 MB
Storage type : FLASH
MTBF : Approximately 100'000 hours at 25C
Tested ambient temperature : -40°C to 70°C

Powering
MicroUSB input Voltage : 5-5 V
Number of DC inputs : 3 (DC jack, PoE-IN, MicroUSB)
DC jack input Voltage : 12-57 V
Max power consumption : 18 W
Max power consumption without attachments : 5 W
FAN count : Passive
PoE in : 802.3af/at
PoE in input Voltage : 12-57 V

PoE-out
PoE-out ports : Ether2
PoE out : 802.3af/at
Total output power : 12W

Wireless specifications
Wireless 2.4 GHz Max data rate : 300 Mbit/s
Wireless 2.4 GHz number of chains : 2
Wireless 2.4 GHz standards : 802.11b/g/n
Antenna gain dBi for 2.4 GHz : 1.5
Wireless 2.4 GHz chip model : QCA9531
Wireless 2.4 GHz generation : Wi-Fi 4

Peripherals
Number of SIM slots : 1 Modem (Nano SIM)
Serial console port : RS485
Number of USB ports : 1
USB slot type : microUSB type AB
Max USB current (A) : 1

Other
PCB temperature monitor : Yes
Voltage Monor : Yes
Bluetooth version : 5.2
Bluetooth RF connector type : uUFL
GPS RF connector type : SMA