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COMe Eval Carrier T7 (A2T7) User Guide Rev 1.1
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1/
Introduction
1.1.
Product Description
The A2T7-G2 is the successor of the already existing ADT7 COM Express Evaluation Carrier Type7. It is an evaluation,
testing and validation carrier board (baseboard) for COM Express® Type 7 modules in ATX form factor. The A2T7-G2
will allow more flexibility with respect to the 10 GbE configurations. Main purpose of this carrier board is to bring out
all the signals from COM Express® connector of COMe Type7 modules to industry standard interfaces. The key
features are:
Support of COM Express® basic and compact modules (Pin-out Type 7 compliant) with cutout area for 2x
SODIMMs on the bottom side of the PCB
Support of overall 32x PCIe lanes via different PCIe card slots: 4x PCIe slots (1x16 + 1x8 + 2x4)
Support of 2x UART ports via DSUB-9 connector
Flexible configuration of 4x 10 GB Eth interfaces from COMe module via pluggable expansion cards
1x 1000Base-T interface, directly from COMe module with basic EMI/ESD protection in RJ-45 integrated
magnetic connector
4x USB 3.1 gen2 Interface, directly from COMe module with basic EMI/ESD protection and redrivers
2x SATA standard interface, directly from COMe module
External fan connector
Coin cell and options for external RTC
BIOS POST Code display in the form of 7-Segment display array
Pin headers for COM Express® specific signals enabling measurement like GPIOs, I2C, SMBus, Power
management, Status signal
External BIOS flash socket and header for emulator connection
Prepared to support BMC card + NCSI support on separate expansion
Prepared to support Intelligent Platform Management Bus (IPMB) on separate expansion
Figure 1: COMe Eval Carrier T7 (A2T7) with four PCIe slots