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 dont need? For example, you can manage a KNOT-powered vending machine with temperature and liquid sensors with only a few megabytes per day!
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 (PoE-IN, MicroUSB, DC jack)
DC jack input Voltage 12-57 V
Max power consumption 18 W
Max power consumption without attachments 5 W
FAN count Passive
PoE in 802.3 af/at
PoE in input Voltage 12-57 V
PoE-out
PoE-out ports Ether2
PoE out 802.3 af/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 802.11 b/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
10/100 Ethernet ports 2
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 Monitor Yes
Bluetooth version 5.2
Bluetooth RF connector type uUFL
GPS RF connector type SMA
Certification & Approvals
Certification CE, FCC, IC, EAC, ROHS
IP IP20
Wireless specifications
2.4 GHz Transmit (dBm) Receive Sensitivity
1MBit/s 22 -96
11MBit/s 22 -89
6MBit/s 20 -93
54MBit/s 18 -74
MCS0 20 -93
MCS7 16 -71
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 dont need? For example, you can manage a KNOT-powered vending machine with temperature and liquid sensors with only a few megabytes per day!
Specifications
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
Powering
Details
MicroUSB input Voltage 5-5 V
Number of DC inputs 3 (PoE-IN, MicroUSB, DC jack)
DC jack input Voltage 12-57 V
Max power consumption 18 W
Max power consumption without attachments 5 W
FAN count Passive
PoE in 802.3 af/at
PoE in input Voltage 12-57 V
PoE-out
Details
PoE-out ports Ether2
PoE out 802.3 af/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 802.11 b/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
GPS RF connector type SMA
Certification & Approvals
Details
Certification CE, FCC, IC, EAC, ROHS
IP IP20
Wireless specifications
2.4 GHz Transmit (dBm) Receive Sensitivity
1MBit/s 22 -96
11MBit/s 22 -89
6MBit/s 20 -93
54MBit/s 18 -74
MCS0 20 -93
MCS7 16 -71
