Industrial IoT Wireless Expansion Module for RasPi for Compute Module 4 CM4 with HD Multimedia Interface Onboard M.2 B Key Item Type: Industrial IoT Wireless Expansion Module Material: PCB CM4 Connector: Available for All Versions for Compute Module 4 HD Multimedia Interface: HD Multimedia Interface, Supports 4K 30fps Output USB 2.0 Interface 3 Way 2.0 Interface, Support Various USB Devices Plug RJ45 Gigabit LAN Port: RJ45 Gigabit LAN Port, Supports 10/100/1000M Network Access DC Power Supply Interface: 7 to 36V DC Power Supply Interface CM4 Status Indicator: Red Light (PWR): for Raspberry Pi Power Indicator Green Light (ACT): for Raspberry Pi Operating Status Indicator 4G/5G Module Status Light: Red(STA): for Module Enable Indicator Green Light (NET): Module Operation Status Light PWR USB Interface: 5V DC Power Supply Interface or USB Burns in Interface M.2 B KEY: Support Access to 4G/5G or Other USB Channel Communication Module SIM Card Holder: Can Access Standard SIM Card for 4G/3G/2G Internet Access BOOT SWITCH BUTTON: ON: for Compute Module 4 Boot up and Boot Transfer B Type C Interface OFF: Boot Up for Compute Module 4 to eMMC or Micro Storage Card UPS Switch Button: ON ON: Turn on the UPS to Power the CM4 OFF: Turn off the UPS to Power the CM4 DC Power Supply Interface: 7 to 36V DC Power Supply Interface Dual Non Isolated RS485 Interface: Dual RS485 Interface with 600W, Surge and 15KV Electrostatic Protection (120R Optional Balanced Resistance Jumper Hat Reserved) Non Isolated CAN Interface: Static and Transient Spike Voltage Protection (120R Optional Balancing Resistor Jumper Hat Reserved) Micro Storage Card Interface: for Access to Micro Storage Card with System to Boot for Compute Module 4 Lite FAN Power Supply Option: Selectable 5V or 12V to Drive the Fan CAM Interface: MIPI CSI Camera Interface RTC Battery Connector: Access to CR1220 Coin Cell Battery M.2 VCC Power Supply Option: Select 3.3V or 4.2V Power Supply RTC Interrupt Pin Switching: PI-RUN PI-RUN: RTC Trigger Interrupt CM4 Restart GN-EN: RTC Trigger Interrupt CM4 Power Off D4: RTC Trigger Interrupt D4 Pin IO VREF Selection: CM4 IO Logic Voltage Switch 3.3V or 1.8V FAN Power Supply Selection: 12V (Default) or 5V Voltage Can Be Selected to Drive the Fan System Function Switching: BT_DIS: Bluetooth Disable, only for CM4 Version with Antenna WiFi_DIS: WiFi Disable, only for CM4 Version with Antenna WP_DIS: Boot Mode Toggle, For Use Only if EMMC Boot or Storage Card boot is Not Used RTC/FAN I2C Bus Selection: SDA0/SCL0: I2C-10 and CSI/DSI Shared GPIO3/2: I2C 1 and 40PIN Shared Partial GPIO Interface: Contains One Set of I2C and 2 GPIOs and Power Supply UPS Module Mini Interface: Uses 10440 3.7V Lithium Battery Battery Specifications: 3x10440 Li Ion 350mAh (Ship with Inbuilt Battery)