The **M2AC-AZE-R2/CE** is a specialized industrial computing component, specifically an M.2 module designed for communication or I/O expansion, often associated with industrial IoT gateways or embedded controllers (frequently used in brands like Advantech or similar industrial PC manufacturers). Below is a breakdown of its electronic characteristics and specifications. --- ## 1. Core Specifications This module typically serves as a wireless communication interface or a specialized signal converter. | Feature | Specification Details | | :--- | :--- | | **Form Factor** | M.2 2230 (Key A+E) | | **Interface** | PCIe x1 / USB 2.0 | | **Standard** | CE Certified (European Conformity) | | **Operating Temp** | Industrial Grade (often -40°C to 85°C) | | **Revision** | R2 (Second revision for improved stability/components) | --- ## 2. Key Electronic Components While internal chipsets can vary based on the specific production batch, the architecture generally includes: ### A. The Controller (IC) The heart of the module is usually a **Broadcom** or **Realtek** chipset. In the "AZE" series, it often integrates: * **WLAN Controller:** Supporting IEEE 802.11 a/b/g/n/ac. * **Bluetooth Controller:** Usually Bluetooth 4.2 or 5.0. ### B. RF Front-End * **Antenna Connectors:** Typically equipped with two **I-PEX MHF4** connectors for MIMO (Multiple Input, Multiple Output) support. * **Band Pass Filters:** Integrated filters to reduce interference between the 2.4GHz and 5GHz bands. ### C. Power Management * **LDO Regulators:** Converts the M.2 standard 3.3V input down to the specific voltages required by the core chipset (e.g., 1.8V or 1.1V). * **Decoupling Capacitors:** High-density MLCCs (Multi-Layer Ceramic Capacitors) to ensure signal integrity during high-speed data transmission. --- ## 3. Pinout & Connectivity (M.2 Key A+E) The "A+E Key" design is specific to wireless modules, utilizing the following pin assignments: 1. **PCIe Lanes:** Used for high-speed Wi-Fi data transfer. 2. **USB 2.0:** Dedicated path typically used for the Bluetooth component. 3. **UART/PCM:** Optional pins for direct digital audio or low-speed serial debugging. 4. **W_DISABLE#:** Hardware pins to toggle Radio Frequency (RF) on or off for safety/compliance. --- ## 4. Industrial Design Standards The "CE" suffix indicates that the electronic parts meet specific European regulatory requirements: * **EMC (Electromagnetic Compatibility):** Minimal interference with surrounding industrial electronics. * **RoHS Compliance:** Lead-free construction. * **Vibration Resistance:** Soldered components are often reinforced to withstand industrial environments compared to consumer-grade M.2 cards. ---