1. EC25MXGA Hardware Design Guide
   • Full pin descriptions
   • Power supply requirements
   • PWRKEY / RESET timing
   • UART / USB / SIM / RF reference circuits
   • VDD_SDIO usage guidance
2. Recommended PCB land pattern / footprint
   • Pad dimensions
   • Pad numbering
   • Paste mask / solder mask recommendations
   • Keepout zones under/around the module
   • Assembly notes
3. Reference schematic
   • VBAT_RF / VBAT_BB decoupling
   • SIM socket wiring
   • Antenna matching / ESD
   • Status pins
   • Power-on/off sequence
4. RF layout guidelines
   • 50 Ω antenna routing
   • Ground stitching via recommendations
   • Antenna connector/matching network placement
   • Diversity/GNSS pins if used or unused
5. Certification documents
   • RCM / ACMA / AS/CA S042 relevance
   • Carrier approval info for Australia
   • LTE band support for AU carriers
   • Test reports if available
6. Lifecycle / supply confirmation
   • Active production status
   • Recommended replacement if EC25MXGA is not preferred
   • Minimum order / lead time

We are designing a dual-modem Australian fire alarm signalling device using 2 × EC25MXGA. Please provide the EC25MXGA hardware design guide, recommended PCB land pattern/footprint, reference schematic, RF layout guide, SIM interface recommendations, VDD_SDIO connection guidance, Australian carrier/certification documentation, and lifecycle/supply status.

• Keep EC25MXGA in the design.
• Do not send the PCB to manufacture yet.
• Continue with placement/routing cleanup only as a draft.
• Finalize modem footprint, SIM wiring, RF layout, and VDD_SDIO treatment once Quectel confirms the official guidance.