Xgig U.2-Server Xgig5P-PCIe5-X4-U2B 4-lane Interposer Module for PCI Express 5.0
Active 4-lane U.2 interposer that captures PCIe 5.0 traffic at up to 32GT/s between a storage server and an NVMe SSD for Xgig analysis.
- Interface
- PCI Express 5.0
- Maximum data rate
- 32GT/s
- Compatible PCIe data rates
- 2.5, 5.0, 8.0 and 16GT/s
- Link configuration
- 1 link of 4 lanes, or 2 links of 2 lanes (dual port)
Overview
The VIAVI Xgig U.2-Server Interposer (Xgig5P-PCIe5-X4-U2B) is an active interposer for development, debugging and performance tuning of NVMe solid state drives in high-density storage servers with U.2 connections. It captures bidirectional PCIe 5.0 protocol data on 4 lanes at up to 32GT/s and passes it to a VIAVI PCIe 5.0 analysis system. It supports either 1 link of 4 lanes or 2 links of 2 lanes for dual-port operation.
High-speed linear signal redrivers restore the signal quality of the PCIe data lanes across the interposer, between the host system and the SSD device-under-test (DUT). This sends a clean signal to the analyzer for reliable protocol capture.
The Front-end module is the same physical size as a 2.5-inch SSD, so it fits in the drive carrier normally used with the server. A lightweight handle can also be attached for drive insertion. Flex cables let the Back-end module, which holds the U.2 NVMe SSD DUT, sit on top of the server or on the lab bench. Adjustable tray clamps and shims give a snug fit, and a quick-release latch allows hot-swap testing.
Operation
The interposer works with the VIAVI Xgig 5P16 or 5P8 PCIe 5.0 analysis platform chassis. Custom high-performance cables connect it to the analyzer, and the Xgig analysis tools run on a local or remote Windows PC. In Analyzer mode, DUT data is tapped from both the upstream and downstream paths. In Analyzer/Jammer mode, data flows through the analyzer and is retimed for transmission. In Analyzer/Exerciser mode, data flows through the interposer to the DUT. A supplied power brick powers the interposer independently of the host system.
Typical uses include debug and verification of new NVMe controller ICs, new system implementations and firmware, validation of system BIOS and software, and manufacturing test quality assurance.
Key Features
- Supports 1 link of 4 lanes, or dual-port operation of 2 links of 2 lanes each
- Operates at 32GT/s PCIe 5.0 data rates
- Downward compatible with PCIe 1.0, 2.0, 3.0 and 4.0 data rates of 2.5, 5.0, 8.0 and 16GT/s
- Front-end module plugs into the system-under-test
- U.2 NVMe SSD DUT (not supplied) plugs into the Back-end module
- Adjustable tray clamps and quick-release latch for snug fit and hot swap testing
- Data path uses high-speed linear redrivers for good signal capture with little or no tuning
- Supplied with custom, high-performance cables for Analyzer system attachment
- Supports side-band signal triggering and capture via custom cable
- Supplied power brick makes Interposer power independent of host system
- LEDs indicate power and status
- Consistent, repeatable capture of link training, equalization, negotiation and other data
- Exerciser EP emulation mode supported
- Supports error injection for deep system analysis
- Supported by Xgig tool suite including Trace Control, Expert and Serialytics
Specifications
| Interface | PCI Express 5.0 |
|---|---|
| Maximum data rate | 32GT/s |
| Compatible PCIe data rates |
2.5, 5.0, 8.0 and 16GT/s
PCIe 1.0, 2.0, 3.0 and 4.0
|
| Link configuration | 1 link of 4 lanes, or 2 links of 2 lanes (dual port) |
| Connector |
U.2
NVMe SSD DUT (not supplied) plugs into the Back-end module
|
| Signal conditioning | High-speed linear redrivers |
| Compatible analysis platform | VIAVI Xgig 5P16 or 5P8 |
| Operating modes |
Analyzer, Analyzer/Jammer, Analyzer/Exerciser
Exerciser EP emulation mode supported
|
| Front-end module size |
100.45 x 69.85 x 15mm
Same physical size as a 2.5-inch SSD
|
|---|---|
| Back-end module size | 226.8 x 111.2 x 33.3mm |
| Power brick |
120/220 input, 12V/3A output
Interposer power independent of host system
|
|---|
Specifications are taken from the manufacturer's documentation. See the datasheet for complete and current values.
Applications
- NVMe SSD development, debugging and performance tuning in high-density storage servers
- IC development, debug and validation
- Subsystem and system-level testing
- Firmware and driver development and validation
- System BIOS and software validation
- Performance analysis
- Manufacturing test quality assurance
Included
- 1 × Xgig5P-PCIe5-X4-U2B U.2 NVMe SSD-to-Server 4-lane Interposer for PCIe 5.0
- 2 × custom high-performance data cables
- 2 × Y-splitter cables
- 1 × sideband cable (to analyzer)
- 4 × coax cables for optional clock
- 1 × hardware kit (includes handle and screws)
- 1 × power brick, 120/220 input, 12V/3A output
- 1 × Quick Start Guide
Options & Accessories
| Option | Description |
|---|---|
| XGIG-INTPSR-A-Hx | 1-year extended hardware warranty — x=1,2,3,4 |
