S18: PCIe Gen3 x8 Fiber-Optic Extension System

The S18 extends a PCIe Gen3 x8 link (64 GT/s) over fiber-optic cables, so one PCIe add-in card can run up to 500 m from the host computer (single-mode fiber). No additional software or drivers are required. Any standard PCIe card can be used, including graphics, video capture, NVMe and SATA storage, USB, data-acquisition and network cards.

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S18
H18A
R10

Features

  • Backplane with one PCIe Gen3 x16 slot (x8 electrical)
  • 64 GT/s over fiber: 8 PCIe Gen3 lanes at 8 GT/s each
  • Optical isolation between host and target (with optical cables)
  • Supports standard pluggable QSFP+ transceivers, active optical cables (AOCs) and direct-attach copper cables (DACs)
  • Digital monitoring and diagnostics
  • Backplane mounts in any standard ATX or microATX case
  • Operating temperature: 0 °C to +75 °C

Cable Types and Lengths

Two cables, each carrying 4 PCIe Gen3 lanes:

  • QSFP+ AOC: up to 100 m
  • QSFP+ DAC: up to 7 m
  • MPO/MTP multimode: up to 100 m (OM3), up to 150 m (OM4)
  • LC-LC duplex (4 lanes optically multiplexed per cable):
    • Multimode: up to 250 m (OM3), up to 350 m (OM4)
    • Single-mode: up to 500 m
  • Compatible with fiber-optic rotary joints (FORJ)

Throughput decreases as cable length increases. See the Adnacom PCIe Gen3 Performance Test (PDF) for measured results.

S18 System Includes

  • H18A host adapter – 1 pc
  • H18A target adapter – 1 pc
  • R10 backplane – 1 pc
  • LP-H18: low-profile bracket for H18A – 2 pcs
  • QSFP+ transceivers or AOCs – optional

Ordering Information

For ordering information, visit the S18 order page.

Documentation

Software and API
Linux:
Windows:
CAD Models and Drawings
3D models and 2D drawings for system integration.
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