ATOM DTU NB is a programmable data transmission unit (DTU) that integrates NB-IoT communication functions. The built-in SIM7020G module covers most of the Cat-NB frequency bands and integrates the SMA external antenna interface to improve the communication quality and signal stability of the device. Unlike the DTU, which generally only has the function of data transparent transmission, the ATOM DTU series adopts a more open architecture design. The controller ATOM LITE can modify the program at will according to the actual business, and the whole machine reserves a variety of interfaces (RS485, I2C, custom interface) for users to expand, which is convenient for the rapid access of sensors and actuators. The self-contained guide rail clamping structure is perfectly embedded in various industrial control sites. ATOM DTU NB is very suitable for various low-latency, low-throughput application scenarios (such as remote control, asset tracking, remote monitoring, remote medical treatment, shared bicycles, etc.). Features SIM7020G/Global version/Multi-band support RS485 communication interface (with 12V input interface, internal integrated DCDC step-down 5V) Strong signal access capability AT command control SIM card type: MicroSIM External antenna: SMA antenna interface Grove expansion interface: I2C x1 Custom x1 Serial communication: UART 115200bps Self-contained rail clamping Cat-NB frequency band: B1/B2/B3/B4/B5/B8/ B12/B13/B17/B18/B19/ B20/B25/B26/B28/ B66/B70/B71/B85 Data transmission (kbps): 126(DL)/150(UL) Network protocol: TCP/UDP/HTTP/HTTPS/ TLS/DTLS/DNS/NTP/ PING/LWM2M/COAP/ MQTT/MQTTS Includes 1x ATOM DTU NB 1x SMA antenna 1x SMA red cap 1x M2 hexagon wrench 1x M2x16 screw 1x 3.96-4P terminal Certification RoHS\REACH\RCM\Telstra\CE(RED)\GCF\ATEX\TIM\Deutsche Telekom\Vodafone\FCC\PTCRB\T-Mobile\IC Operator certification Telstra*/Vodafone/Deutsche Telekom Specifications Resources Parameter Module SIM7020G Support Cat-NB frequency band B1/B2/B3/B4/B5/B8/ B12/B13/B17/B18/B19/ B20/B25/B26/B28/ B66/B70/B71/B85 Network protocol TCP/UDP/HTTP/HTTPS/ TLS/DTLS/DNS/NTP/ PING/LWM2M/COAP/ MQTT/MQTTS communication UART 115200bps Net weight 32g Gross weight 40g Product Size 64 x 24 x 29mm Package Size 91 x 42 x 24.5mm Documentation Description Product Features Includes Application Certification Operator certification Specifications Related Link Pin mapping Schematic Example Video
