KNOT

KNOT

IoT Gateway for the most versatile and cost-effective setups

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!

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Product Description

Details
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
Suggested price	$99.00

Powering

Details
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

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

Wireless specifications

Details
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

Ethernet

Details
10/100 Ethernet ports	2

Peripherals

Details
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

Details
PCB temperature monitor	Yes
Voltage Monitor	Yes
Bluetooth version	5.2
Bluetooth RF connector type	uUFL
GNSS standards	GPS / GLONASS / BEIDOU / GALILEO
GPS RF connector type	SMA