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The CBack NB-IoT is an NB-IoT communication module adapted to the M5StickC/C Plus series, with a built-in SIM7020G module that covers most of the world's Cat-NB frequency band. It integrates the SMA external antenna interface, improves the communication quality, and the signal stability of the device. It supports a variety of common IoT communication protocols (MQTT, HTTP, CoAP, etc.), which is suitable for various low-latency and low-throughput application scenarios.
| Resources | Parameters |
| Communication module | SIM7020G |
| The Cat-NB band is supported | B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B66/B70/B71/B85 |
| Data transfer speed | 126(DL)/150(UL) |
| Network protocols | TCP/UDP/LWM2M/COAP/ MQTT/HTTP/HTTPS/ TLS/DTLS/DNS/NTP/ PING/OneNET/Telecom Cloud/Aila Cloud* |
| Communication method | UART 115200bps |
| authentication | CE*/FCC*/GCF*/PTCRB*/RoHS/REACH/ATEX/TIM*/Deuts Telecom*/Vodafone*/T-Mobile* |
| Product Size | 68mm × 24mm × 21mm |
| Package Size | 90mm × 35mm × 21mm |
| Product Weight | 12.2g |
| Package Weight | 25g |
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