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KNOT - IoT Gateway for the most versatile and cost-effective setups
KNOT is a truly universal device with exceptional connectivity options and protocol support. It is an IoT Gateway that uses Narrow Band 2 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 and actuators, 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.
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Specifications |
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Product code |
RB924i-2nD-BT5&BG77 |
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Architecture |
MIPSBE |
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CPU |
QCA9531 |
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CPU core count |
1 |
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CPU nominal frequency |
650 MHz |
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Switch chip model |
QCA9531 |
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Dimensions |
122 x 87 x 26 mm |
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RouterOS license |
4 |
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Operating System |
RouterOS |
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Size of RAM |
64 MB |
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Storage size |
128 MB |
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Storage type |
NAND |
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MTBF (Approximately) |
100.000 hours at 25°C |
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Tested ambient temperature |
-40°C to 70°C |
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Powering |
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MicroUSB input Voltage |
5 V |
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Number of DC inputs |
3 (MicroUSB, DC jack, PoE-IN) |
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DC jack input Voltage |
12-57 V |
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Max power consumption |
18 W |
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Max power consumption without attachments |
5 W |
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Cooling type |
Passive |
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PoE in |
802.3af/at |
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PoE in input Voltage |
18-57 V |
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PoE-out
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PoE-out ports |
Ether2 |
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PoE out |
Passive PoE up to 57V |
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Total output power |
12 |
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Wireless specifications
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Wireless 2.4 GHz Max data rate |
300 Mbit/s |
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Wireless 2.4 GHz number of chains |
2 |
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Wireless 2.4 GHz standards |
802.11b/g/n |
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Antenna gain dBi for 2.4 GHz |
1.5 |
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Wireless 2.4 GHz chip model |
QCA9531 |
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Wireless 2.4 GHz generation |
Wi-Fi 4 |
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Ethernet |
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10/100 Ethernet ports |
2 |
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Peripherals |
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Number of SIM slots |
1 Modem (Nano SIM) |
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Serial console port |
RS485 |
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Number of USB ports |
1 |
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USB slot type |
microUSB type AB |
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Max USB current (A) |
1 |
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Other |
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PCB temperature monitor |
Yes |
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Voltage Monitor |
Yes |
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Bluetooth version |
5.2 |
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Bluetooth RF connector type |
uUFL |
| Package Contents: |
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| 1 x wAP LR8G
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| 1 x 24V/1.2A power adapter
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| 1 x K-47 wall mount set
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| 1 x USB OTG cable
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| 1 x DIN rail mount set |
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