Dragino RS485-CB/CS – RS485/UART to NB-IoT/LTE-M Converter

The Dragino RS485-CB/CS is a RS485 / UART to NB-IoT/LTE-M Converter for Internet of Things solutions. User can connect RS485 or UART sensor to RS485-CB/CS converter, and configure RS485-CB/CS to periodically read sensor data and upload via NB-IoT/LTE-M network to IoT server.

RS485-CB/CS can interface to RS485 sensor, 3.3v/5v UART sensor or interrupt sensor. RS485-CB/CS provides a 3.3v output and a 5v output to power external sensors. Both output voltages are controllable to minimize the total system power consumption.

RS485-CB/CS supports different uplink methods including MQTT, MQTTs, UDP, TCP or CoAP for different application requirement, and support uplinks to various IoT Servers.

RS485-CB/CS supports BLE configure and OTA update which make user easy to use.

RS485-CB/CS is powered by 8500mAh Li-SOCI2 battery (RS485-CB) or solar powered + Li-ion battery (RS485-CS), it is designed for long-term use up to several years.

RS485-CB/CS has optional built-in SIM card and default IoT server connection version. Which makes it works with simple configuration.

• For -NB Bands: B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85
• For -CB Bands: B1/B2/B3/B4/B5/B8/B12/B13//B18/B19/B20/B25/B28/B66/B71/B85
• CAT-M1 / LTE-M Bands: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B26/B27/B28/B66/B85
• Ultra-low power consumption
• Support multiply RS485 devices by flexible rules
• Support Modbus protocol
• Support Interrupt uplink
• Supports connecting a UART sensors with 3.3V or 5V
• Multiply Sampling and one uplink
• GNSS for Location Report
• Support Bluetooth v5.1 remote configure and update firmware
• Uplink via MQTT, MQTTs, TCP, UDP or CoAP
• Uplink on periodically
• Downlink to change configure
• 8500mAh Battery (RS485-CB) or solar powered + Li-ion battery (RS485CS) for long term use
• Nano SIM card slot for NB-IoT SIM

• Smart Buildings & Home Automation
• Logistics and Supply Chain Management
• Smart Metering
• Smart Agriculture
• Smart Cities
• Smart Factory

Common DC Characteristics:

• Supply Voltage: 2.6v ~ 3.6v
• Operating Temperature: -40 ~ 85°C

I/O Interface:

• Battery controllable output (2.6v ~ 3.6v depends on battery)
• +5v controllable output
• 1 x RS485 Interface
• 1 x UART Interface , 3.3v or 5v
• 1 x Interrupt or Digital IN/OUT pins
• 1 x I2C Interface
• 1 x one wire interface

NB-IoT Spec:

NB-IoT Module: BC660K-GL

Support Bands:

• B1 @H-FDD: 2100MHz
• B2 @H-FDD: 1900MHz
• B3 @H-FDD: 1800MHz
• B4 @H-FDD: 2100MHz
• B5 @H-FDD: 860MHz
• B8 @H-FDD: 900MHz
• B12 @H-FDD: 720MHz
• B13 @H-FDD: 740MHz
• B17 @H-FDD: 730MHz
• B18 @H-FDD: 870MHz
• B19 @H-FDD: 870MHz
• B20 @H-FDD: 790MHz
• B25 @H-FDD: 1900MHz
• B28 @H-FDD: 750MHz
• B66 @H-FDD: 2000MHz
• B70 @H-FDD: 2000MHz
• B85 @H-FDD: 700MHz

Battery:

• Li/SOCI2 un-chargeable battery
• Capacity: 8500mAh
• Self Discharge: <1% / Year @ 25°C
• Max continuously current: 130mA
• Max boost current: 2A, 1 second

or solar powered + Li-ion battery

Power Consumption:

• STOP Mode: 10uA @ 3.3v
• Max transmit power: [email protected]