GSM/GPRS/NB-IoT Module Series
BC68&M66 Compatible Design
BC68&M66_Compatible_Design 7 / 31
2 General Descriptions
2.1. Product Description
M66 is a Quad-band GSM/GPRS engine that works at frequencies of GSM850MHz, EGSM900MHz,
DCS1800MHz and PCS1900MHz. The M66 features GPRS multi-slot class 12 and supports the GPRS
coding schemes CS-1, CS-2, CS-3 and CS-4. BC68 is a high-performance NB-IoT module with low
power consumption. BC68 and M66 are designed as compatible products. Customers can choose a
proper module according to specific application demands. The compatible design guideline ensures a
smooth migration from M66 to BC68 for customers’ products.
Table 1: Module General Information
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