KNOT

IoT Gateway for the most versatile and cost-effective setups
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The newest addition to the MikroTik IoT product family – KNOT – is a truly universal device with exceptional connectivity options and protocol support. It is an IoT Gateway that uses Narrow Band and CAT-M technology. Because of the low cost, low bandwidth cellular connection, it is supported by countless mobile operators around the globe.

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

Details
Product codeRB924i-2nD-BT5&BG77
ArchitectureMIPSBE
CPUQCA9531
CPU core count1
CPU nominal frequency650 MHz
Dimensions122 x 87 x 26 mm
RouterOS license4
Operating SystemRouterOS
Size of RAM64 MB
Storage size16 MB
Storage typeFLASH
MTBFApproximately 100'000 hours at 25C
Tested ambient temperature-40°C to 70°C

Powering

Details
MicroUSB input Voltage5-5 V
Number of DC inputs3 (PoE-IN, MicroUSB, DC jack)
DC jack input Voltage12-57 V
Max power consumption18 W
Max power consumption without attachments5 W
FAN countPassive
PoE in802.3af/at
PoE in input Voltage12-57 V

PoE-out

Details
PoE-out portsEther2
PoE out802.3af/at
Total output power12W

Wireless specifications

Details
Wireless 2.4 GHz Max data rate300 Mbit/s
Wireless 2.4 GHz number of chains2
Wireless 2.4 GHz standards802.11b/g/n
Antenna gain dBi for 2.4 GHz1.5
Wireless 2.4 GHz chip modelQCA9531
Wireless 2.4 GHz generationWi-Fi 4

Ethernet

Details
10/100 Ethernet ports2

Peripherals

Details
Number of SIM slots1 Modem (Nano SIM)
Serial console portRS485
Number of USB ports1
USB slot typemicroUSB type AB
Max USB current (A)1

Other

Details
PCB temperature monitorYes
Voltage MonitorYes
Bluetooth version5.2
Bluetooth RF connector typeuUFL
GPS RF connector typeSMA

Certification & Approvals

Details
CertificationCE, FCC, IC, EAC, ROHS
IPIP20

Wireless specifications

2.4 GHzTransmit (dBm)Receive Sensitivity
1MBit/s22-96
11MBit/s22-89
6MBit/s20-93
54MBit/s18-74
MCS020-93
MCS716-71