Xgig Xgig4K-PCIe4-X4-AI 4-lane CEM-slot Interposer Module for PCI Express 4.0
4-lane CEM-slot interposer that taps PCIe 4.0 traffic at up to 16GTps between a host system and an endpoint card for the VIAVI Xgig Analyzer/Jammer.
- Data rate
- Up to 16GTps, PCIe 4.0
- Backward-compatible data rates
- PCIe gen-1, gen-2 and gen-3 data rates of 2.5, 5.0 and 8.0GTps
- Link width
- Up to and including 4-lanes (bi-directional)
- Host connector
- Bottom edge 4-lane PCB finger connector
Overview
The VIAVI Xgig 4-lane CEM-slot Interposer (Xgig4K-PCIe4-X4-AI) provides the connection between the VIAVI PCIe 4.0 Analyzer/Jammer chassis and a system under test. It is used for debug and verification of new ICs, system hardware designs and FPGA firmware, for validation of system BIOS and software, and in manufacturing test.
The interposer installs into a 4-, 8- or 16-lane PCIe CEM slot of the kind found in many servers, workstations and desktop PCs. An endpoint card is inserted into the top-edge 16-lane slot connector, creating the test data path, and two SFF-8674 equivalent cables connect the interposer to the Analyzer/Jammer platform. It operates up to and including the 16GTps PCIe 4.0 rate across 4 bi-directional lanes and is downward compatible with gen-1, gen-2 and gen-3 rates.
Signal path
High-speed linear redrivers buffer the system data signals between the PCIe slot and the PCB fingers, delivering a clean signal to the Analyzer and DUT for protocol capture. In Analyzer mode, DUT data is tapped from both the upstream and downstream paths. In Jammer or Analyzer/Jammer mode, the data path is switched to route data into and out of the Analyzer, allowing error injection.
Power and installation
The interposer is powered independently of the host system by an included external 12V/3A converter. Exchangeable brackets secure the chassis and endpoint card installations, and the board requires an open chassis while in use. It is supported by the Xgig tool suite, including Trace Control, Expert and Serialytics.
Key Features
- Supports link widths up to and including 4 lanes
- Operates up to 16GTps, PCIe 4.0 data rates
- Downward compatible with PCIe gen-1, gen-2 and gen-3 data rates of 2.5, 5.0 and 8.0GTps
- Top-edge 16-lane CEM slot connector accepts all endpoint DUT adapter cards
- Bottom-edge 4-lane PCB finger connector installs into the host system's 4-, 8- or 16-lane PCIe slot
- Supplied with two SFF-8674 equivalent custom cables for Analyzer attachment
- Data path uses high-speed linear redrivers for signal capture with minimal tuning
- Supports Analyzer side-band signal triggering and capture via custom cable
- Supports clock and trigger I/O
- Interposer power is independent of the host system
- 120/220 AC in, 12V/3A DC out power converter included
- Custom, exchangeable brackets for secure chassis and endpoint card installations
- LEDs indicate power and operation
- Design based on the PCIe Card Electro-Mechanical (CEM) specification
- Supports error injection for deep system analysis
- Consistent, repeatable capture of link training, equalization and other in-band and side-band data
- Supported by the Xgig tool suite including Trace Control, Expert and Serialytics
Specifications
| Data rate | Up to 16GTps, PCIe 4.0 |
|---|---|
| Backward-compatible data rates | PCIe gen-1, gen-2 and gen-3 data rates of 2.5, 5.0 and 8.0GTps |
| Link width | Up to and including 4-lanes (bi-directional) |
| Host connector |
Bottom edge 4-lane PCB finger connector
Installs into host test system's 4-, 8- or 16-lane PCIe slot
|
| DUT connector |
Top edge 16-lane CEM slot connector
Accepts all endpoint DUT adapter cards
|
| Analyzer connection | Two SFF-8674 equivalent custom cables |
| Clock input | Optional clock in MCX connector |
| Reference clock output | Optional REFCLK out connector |
| Side-band |
Side-band signal connector
Supports Analyzer side-band signal triggering and capture via custom cable
|
| Signal conditioning | High-speed linear redrivers |
| Format | Based on the PCIe Card Electro-Mechanical (CEM) specification |
|---|---|
| Size | 170mm deep x 242mm tall x 15mm thick |
| Cooling | No fan design |
| Indicators | Indicator LEDs for power and operation |
| Installation | Requires an open chassis while in use |
| Power supply |
120/220 AC in, 12V/3A DC out converter
Interposer power is independent of host system
|
|---|
Specifications are taken from the manufacturer's documentation. See the datasheet for complete and current values.
Applications
- IC development, debug and validation
- Subsystem and system-level testing
- Firmware and driver development and validation
- Performance analysis
- FPGA firmware verification
- System BIOS and software validation
- Manufacturing test
Included
- Xgig4K-PCIe4-X4-AI, 4-lane 16Gtps CEM-Slot Interposer card for PCIe 4.0 (1)
- SFF-8674 custom high-performance cables (2)
- Sideband cable (1)
- MCX coax cables for optional clock (2)
- Power brick, 120/220 input, 12V/3A output (1)
- Replaceable bracket kit (1)
Options & Accessories
| Option | Description |
|---|---|
| Xgig4K-PCIe4-X4-AI-H1 | 1-year extended hardware warranty |
Documents & Resources
Related Products
Analysis software included with all Xgig Analyzers that automatically examines captured traces to find protocol, performance and physical-layer issues.
16-lane PCIe 4.0 protocol analyzer and jammer chassis with 128 GB capture memory, supporting link speeds up to 16 GT/s.
4-lane, 16GTps PCIe 4.0 protocol analyzer chassis that decodes PCIe and NVMe traffic at all layers of the stack, with 32GB capture memory.
Active 8-lane PCIe 4.0 interposer for capturing EDSFF E1.L and E1.S NVMe SSD traffic at 16GTps for protocol analysis.
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.
Active 4-lane U.2-to-CEM interposer for PCIe 4.0 that taps NVMe SSD traffic at up to 16GTps for capture by a VIAVI Xgig Analyzer.
Active 4-lane PCIe 4.0 interposer that taps traffic between a host system and a U.3 NVMe SSD at 16GTps for VIAVI Xgig analyzers.