ADLINK Technology COM Express CEI-4x10GBASE-T User Manual page 10

CEI-4x10GBASE-T Network Adapter PICMG COM.0 R3.1
2. Specifications
2.1. Interface
Input
Up to 4x 10GBASE-KR and related CEI sideband signals from a dedicated COM Express Type 7 module through a 164-pin edge connector (PCIe x16 slot
PCIEKR on Express-BASE7)
Output
Up to 4x 10GBASE-T via 4x RJ45 connectors
2.2. 10GbE PHY
PHY
Intel X557-AT4 Copper
Converts 10GBASE-KR and sidebands to 10GBASE-T
PHY Firmware on SPI ROM
Dedicated ROM for storing PHY firmware
ID EEPROM (AT24CS32 EEPROM)
I2C-based device, identifies the capabilities of the attached site. This allows the firmware to configure the attached PHY(s) and necessary I/O modes.
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