Xgig M.2 4-lane Interposer Xgig4K-PCIe4-X4-M2 for PCI Express 4.0

Active M.2 interposer that taps host-to-SSD PCIe 4.0 traffic on up to 4 lanes at 16GTps for the VIAVI Xgig PCIe 4.0 Analyzer.

Maximum data rate: 16GTps
Downward compatible data rates: 2.5, 5.0 and 8.0GTps
Link width: up to 4-lanes
Supported M.2 card types: 2230, 2242, 2260, 2280 and 22110

Datasheet

Overview

The VIAVI Xgig M.2, 4-lane Interposer for PCI Express 4.0 (Xgig4K-PCIe4-X4-M2) is an active interposer designed for M.2 SSD development. It provides a tap of the data signals between a host system and an M.2 PCIe SSD, allowing protocol analysis of their communication with the VIAVI PCIe 4.0 Analyzer. It can be used in servers, workstations, desktop and notebook PCs, and other system types.

Bidirectional PCIe 4.0 protocol data on each of 4 lanes is captured at up to 16GTps, with downward compatibility to PCIe gen-1, gen-2 and gen-3 rates. The interposer accepts M.2 card types 2230, 2242, 2260, 2280 and 22110. High-speed linear signal redrivers buffer the system data signals so that a clean signal reaches both the analyzer and the devices under test.

Setup and operation

The PCIe SSD is mounted in the interposer's M.2 card tray, and cables connect the interposer to the VIAVI Analyzer/Jammer chassis. The M.2 DUT PCB and cable are then installed in the system under test and plugged into the interposer pod. In analyzer mode, upstream and downstream data are tapped as inputs to the analyzer ports. In Jammer or Analyzer/Jammer mode, data flows through the analyzer chassis, which allows error injection.

The interposer is powered independently of the host system. It works with the VIAVI Xgig4K-PCIe4-X16 and Xgig4K-PCIe4-X4 Analyzer/Jammer chassis, is supported by the Xgig Analyzer tools for trace capture with filtering and triggering, and integrates with Xgig Expert for problem and performance analysis.

Key Features

Operates up to 16GTps, PCIe gen-4 data rates
Downward compatible with PCIe gen-1, gen-2 and gen-3 data rates of 2.5, 5.0 and 8.0GTps
Supports PCIe links of up to 4-lanes
M.2 PCIe SSD DUT plugs directly into the interposer
Supports M.2 card types 2230, 2242, 2260, 2280 and 22110
Custom cable with PCB connects to host system DUT
Supplied with two high-quality SFF-8674 equivalent custom cables for Analyzer attachment
Data path uses high-speed linear redrivers for good signal capture with little or no tuning
Supports Analyzer side-band signal capture and triggering
Supplied with two clock connectors and cables
Interposer power is independent of host system
120/220 AC in, 12V/3A DC output converter included
LEDs give quick indicators of power and status
Works with the VIAVI Xgig4K-PCIe4-X16 and Xgig4K-PCIe4-X4 Analyzer/Jammer chassis
Supported by VIAVI Xgig Analyzer tools for trace capture with filter, trigger and more
Integrates with Xgig Expert for problem and performance analysis
Consistent, repeatable capture of link training, equalization negotiation and other data information
Supports error injection for deep system analysis

Specifications

Interface

Maximum data rate	16GTps PCIe gen-4
Downward compatible data rates	2.5, 5.0 and 8.0GTps PCIe gen-1, gen-2 and gen-3
Link width	up to 4-lanes
Supported M.2 card types	2230, 2242, 2260, 2280 and 22110
Analyzer cables	Two SFF-8674 equivalent custom cables The web page and datasheet body text also refer to SFF-8764; the datasheet feature list and kit contents list SFF-8674
Compatible analyzer chassis	Xgig4K-PCIe4-X16 and Xgig4K-PCIe4-X4 Analyzer/Jammer chassis