SerialTek’s U.2, U.3, single-port (1×4), and dual-port (2×2) capability is combined into one interposer unit, providing significant cost savings in enterprise environments where all form factors are required. SerialTek’s U.2 and U.3 interposers support standard and extended length storage bays, and all relevant sidebands, including SMBus (e.g., NVMe-MI) from the host or from external / third-party injection or generation tools. SerialTek’s PCIe Gen4 U.2 and U.3 Interposers with SI-Fi technology are specially designed test adapters that are physically placed in between the U.2/U.3 port and an U.2/U.3 target to intercept and relay a copy of the high-speed signaling and discrete data lines to the Kodiak PCIe Analysis system in real-time.
U.2/U.3 Overview
- Dimensions: 194 x 29 x 337 mm (7.6 x 1 x 13”)
- Power connector: Molex 87427-0602
- Analyzer connectors: 4x SFF-8644
- Device connector: SFF-8639 receptacle
- Host connectors: SFF-8639 plug
- SMBUS injection connector: 2×5 pin 0.1” header, 3.3 Vdc
- REFCLKA output connectors: 2x U.FL, AC coupled LPHCSL
- REFCLKA output control connector: 2 pin 0.1” header
- REFCLKA buffer control connector: 3 pin 0.1” header
- REFCLKB output connectors: 2x U.FL,AC coupled LPHCSL
- REFCLKB output control connector: 2 pin 0.1” header
- REFCLKB buffer control connector: 3 pin 0.1” header
- Sideband signal access connector: 2×9 pin 0.1” header, 3.3 Vdc
U.2/U.3 Interposer Sideband Signals
- IFDET2#
- PERST#
- PERSTB#/CLKREQ#
- ACTIVITY#
- PRSNT#
- IFDET#
- PWRDIS
- WAKE#
- GND
- GND
- EXT_INPUT_LOGIC_1
- EXT_INPUT_LOGIC_2
- PCIE_SMDAT
- PCIE_SMCLK
- HPT1
- HPT0
- DUALPORTEN#
- GND
