PXH842 Host and Target Transparent Cable Adapter (preliminary)

Gen3 PCI Express Transparent Host and Target Adapter

The PXH842 Gen3 PCI Express Transparent Host and Target Cable Adapter is our high performance optical interface to external IO subsystems. Based on Broadcom® PLX Gen3 PCI Express bridging architecture, the PXH842 adapter includes advanced features for transparent operations and clock isolation. The PXH842 card have two MTP connectors and utilizes the new Samtec PCIe FireFly® optical engine.


  • x16 PCI Express edge port
  • Two x8/x4 PCIe optical cable ports
  • Total 128 Gbit/s Throughput
  • 138 ns Cut-Through Latency
  • Low Profile Design
  • PCIe Gen3
  • Dual MTP connectors
  • Samtec FireFly optical engine
  • Host and Target operations
  • Transparent bridging

Product Data

The PXH842 Gen3 PCI Express Host Adapter is our high performance cabled interface to external IO subsystems. Based on Broadcom® PLX Gen3 PCI Express bridging architecture, the PXH842 Transparent Host and Target adapter includes advanced features for transparent bridging (TB), host and clock isolation. The PXH842 card utilizes the Samtec PCIe FireFly® optical engine enabling distances up to 100 meters.

The PXH842 card is a transparent only product. To utilize Dolphin's PCIe clustering software, you need to purchase the PXH840 Gen3 NTB Adapter card.

Fiber Cables

The PXH840 is carefully designed for maximum cable length and supports fiber cables up to 100 meter optical cables. The x16 configuration requires two MPT female, 24 pairs, OM3 50/125, Key up - Key up (Type C) cables.

Features

  • PCI Express® 3.0 compliant - 8.0 Gbps per lane
  • Slot compliant with Gen1 and Gen2 PCI Express
  • Samtec FireFly® optical engine
  • MTP connectors
  • Four x4 Gen3 PCI Express cable ports that can be configured as:
    • One - x16 PCI Express port
    • Two - x8 PCI Express ports
    • Four - x4 PCI Express ports
  • Fiber-optic cable connectors
  • Clock isolation support
  • Low profile PCI Express form factor
  • EEPROM for custom system configuration
  • Link status LEDs through face plate
Feature Description
Link Speeds 32 Gbit/s per port, total 128 Gbit/s
Cut Through Latency 138 nanoseconds
Active Components Broadcom / PLX Gen3 PCI Express Switch
PCI Express®

Base Specification 3.0
Card Electromechanical Specification 3.0

Topologies Point to point
Single Host card supports up to 4 downstream targets
Cable Connections Fiber optic cable (AOC) support, up to 100 meters
Power Consumption

12 Volt : 14 Watt Max
+3.3 Volt : Max 3.3 Watt
+3.3 VAUX : Max 1 Watt

Mechanical Dimensions Low profile, Half Length - 68.90 mm (2.731 inches) x 167.65 mm (6.600 inches)
Operating Environment Operating Temperature : 0°C - 45°C (32°F - 113°F)
Air Flow: 150 LFM

Relative Humidity: 5% - 95% (non- condensing)
Storage Environment Storage Temperature: -40°C - 70°C (-40°F - 158°F)
Relative Humidity 95% (non- condensing) at 35°C
Software No special drivers needed for Transparent operation
PCIe bracket Full height plate mounted
Half height plate not included, only available for x8 and x4 configurations.
Configuration DIP-switch
Host / Target / Long cable / short cable / safe boot
Regulatory (pending) CE Mark
FCC Class A
RoHS compliant
UL94V-0 compliant
Operating Systems All

PXH842 - Transparent Host + Target functionality only