Hardware in-depth view ======================== Architecture ----------------------------- .. image:: ../images/mapio_board1_overview_2.png :width: 600 Power supply ----------------------------- Power supply is delivered to MAPIO through J1001 connector. * On PCB side, it's a Wurth Elektronik 691321100002 * On wire side, it's a Wurth Elektronik 691363110002 The PCB1 is equipped with reverse polarity protection, TVS diode and an 0603 3.5A SMD fuse (Bel 0ABB-3500-TM). Compute Module ----------------------------- MAPIO needs a Compute Module 4 with on-board eMMC. The following CM4 are compatible with MAPIO : +---------------------+-----+------+------------+ | Wireless (BLE/Wifi) | RAM | eMMC | Partnumber | +=====================+=====+======+============+ | No | 1GB | 8GB | CM4001008 | +---------------------+-----+------+------------+ | No | 1GB | 16GB | CM4001016 | +---------------------+-----+------+------------+ | No | 1GB | 32GB | CM4001032 | +---------------------+-----+------+------------+ | Yes | 1GB | 8GB | CM4101008 | +---------------------+-----+------+------------+ | Yes | 1GB | 16GB | CM4101016 | +---------------------+-----+------+------------+ | Yes | 1GB | 32GB | CM4101032 | +---------------------+-----+------+------------+ | No | 2GB | 8GB | CM4002008 | +---------------------+-----+------+------------+ | No | 2GB | 16GB | CM4002016 | +---------------------+-----+------+------------+ | No | 2GB | 32GB | CM4002032 | +---------------------+-----+------+------------+ | Yes | 2GB | 8GB | CM4102008 | +---------------------+-----+------+------------+ | Yes | 2GB | 16GB | CM4102016 | +---------------------+-----+------+------------+ | Yes | 2GB | 32GB | CM4102032 | +---------------------+-----+------+------------+ | No | 4GB | 8GB | CM4004008 | +---------------------+-----+------+------------+ | No | 4GB | 16GB | CM4004016 | +---------------------+-----+------+------------+ | No | 4GB | 32GB | CM4004032 | +---------------------+-----+------+------------+ | Yes | 4GB | 8GB | CM4104008 | +---------------------+-----+------+------------+ | Yes | 4GB | 16GB | CM4104016 | +---------------------+-----+------+------------+ | Yes | 4GB | 32GB | CM4104032 | +---------------------+-----+------+------------+ | No | 8GB | 8GB | CM4008008 | +---------------------+-----+------+------------+ | No | 8GB | 16GB | CM4008016 | +---------------------+-----+------+------------+ | No | 8GB | 32GB | CM4008032 | +---------------------+-----+------+------------+ | Yes | 8GB | 8GB | CM4108008 | +---------------------+-----+------+------------+ | Yes | 8GB | 16GB | CM4108016 | +---------------------+-----+------+------------+ | Yes | 8GB | 32GB | CM4108032 | +---------------------+-----+------+------------+ Ethernet ----------------------------- 1 Gbps Ethernet is available through T200 RJ45 connector. ESD protections are guaranteed by U200 and U201 ESD diodes. PCIe ----------------------------- An M.2 connector is available on the main board. The interface can be configurated by setting or removing R500 to R503 resistors. The default configuration is SSD-PCIe. +----------------+-----------------+-----------------+-----------------+-----------------+ | Host interface | Config 0 (R500) | Config 1 (R501) | Config 2 (R502) | Config 3 (R503) | +================+=================+=================+=================+=================+ | SSD-SATA | 0 (Fitted) | 0 (Fitted) | 0 (Fitted) | 0 (Fitted) | +----------------+-----------------+-----------------+-----------------+-----------------+ | SSD-PCIe | 0 (Fitted) | 1 (Not fitted) | 0 (Fitted) | 0 (Fitted) | +----------------+-----------------+-----------------+-----------------+-----------------+ | WWAN - PCIe | 0 (Fitted) | 0 (Fitted) | 1 (Not fitted) | 0 (Fitted) | +----------------+-----------------+-----------------+-----------------+-----------------+ 2242 and 2280 M.2 SSD are compatible. You can use M2x2.5mm screw to hold SSD to the board. USB ----------------------------- RS485 ----------------------------- Optocoupler ----------------------------- Relay ----------------------------- Fan -----------------------------