ROM-7421 - Electronic module Advantech - Free user manual and instructions
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| Product Type | System on Module (SoM) |
| Dimensions | 70 x 70 x 8 mm |
| Weight | 45 g |
| Power Supply | 5V DC, 2A |
| Processor | Rockchip ARM Cortex-A72 quad-core, 2.0 GHz |
| Memory | 4 GB LPDDR4 |
| Storage | 32 GB eMMC |
| Operating Temperature | -20°C to 70°C |
| Operating System Support | Linux Yocto, Android |
| Connectivity | Gigabit Ethernet, Wi-Fi 802.11ac, Bluetooth 5.0 |
| Interfaces | HDMI, USB 3.0, I2C, SPI, UART, GPIO |
| Cooling | Passive heatsink |
| LED Indicators | Power, Activity |
| Mounting | Pin header connectors |
| Certifications | CE, FCC Class A |
| Safety Instructions | Use only compatible power supply; avoid electrostatic discharge; do not operate without proper enclosure. |
| Cleaning | Use dry cloth; avoid liquids. |
| Storage | -40°C to 85°C, dry environment. |
| Spare Parts | Contact Advantech support for replacement modules. |
| Warranty | 2 years limited warranty. |
Frequently Asked Questions - ROM-7421 Advantech
What is the Advantech ROM-7421?
The Advantech ROM-7421 is a compact System on Module (SoM) designed for embedded applications, featuring an ARM Cortex-A72 processor and rich I/O interfaces.
How do I power the ROM-7421?
Connect a stable 5V DC power supply with at least 2A capacity to the designated power pins. Ensure correct polarity to avoid damage.
What operating systems are supported?
The ROM-7421 supports Linux Yocto and Android. Pre-built images are available from Advantech's support page.
How can I connect peripherals?
The module provides I2C, SPI, UART, and GPIO via expansion headers, plus HDMI, USB 3.0, and Gigabit Ethernet for external connectivity.
What is the operating temperature range?
The module operates reliably from -20°C to 70°C. For extreme conditions, additional thermal management may be required.
How do I install the module on a carrier board?
Align the pin headers on the ROM-7421 with the matching sockets on the carrier board and press gently until fully seated. Secure with screws if provided.
Can I use the ROM-7421 in a harsh environment?
Yes, with proper enclosure and conformal coating, it can withstand vibration and dust. Check the manual for detailed environmental specifications.
How do I update the firmware?
Boot from an SD card with the firmware image or use the built-in flash utility via UART. Follow the instructions in the user manual.
What are the LED indicators for?
A green LED indicates power on, and a yellow LED blinks during data activity. Refer to the manual for detailed status codes.
Where can I find spare parts or replacement modules?
Contact Advantech customer support or visit their official website to order replacement modules or spare parts.
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USER MANUAL ROM-7421 Advantech
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Product information
Brand : Advantech
Model : ROM-7421
Category : Electronic module