PXH842 Host and Target Transparent Cable Adapter
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.
Variants
The card is available in several variants with reduced number of FireFly optical modules mounted. The maximum performance and supported topologies for these cards will vary. Details can be found in the following table:
| Part Number | Installed FireFly devices | Supported PCIe configurations | Required MPO Patch Fiber Cable |
|---|---|---|---|
| PXH842 | Two x8 | x16, Two x8 | Two 24 strand |
| PXH845 | Four x4 | x16, xTwo 8, Four x4 | Four 12 strand |
| PXH846 | One x8 | x8 | One 24 strand |
| PXH847 | Two x4 | x8, Two x4 | Two 12 strand |
| PXH848 | One x4 | x4 | One 12 strand |
Fiber MPO Patch Cables
The PXH84x cards are carefully designed for maximum cable length and supports fiber cables up to 100 meter optical cables. The x8 FireFly device configuration requires two MPO female, 24 strand, OM3 50/125, Key up - Key up (Type C) cables. The x4 FireFly device configuration requires two MPO female, 12 strand, OM3 50/125, Key up - Key up (Type B) cables.
Features
- PCI Express® 3.0 compliant - 8.0 GT/s 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 GT/s per port, total 128 GT/s |
| Cut Through Latency | 138 nanoseconds |
| Active Components | Broadcom / PLX Gen3 PCI Express Switch |
| PCI Express® | Base 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 : Max 18 Watt, typical 14 Watt with 4 FireFlys attached. |
| 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 - 55°C (32°F - 131°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. Supports Dolphin Board Management Software |
| PCIe bracket | Full height plate mounted Half height plate not included, only available for x8 and x4 configurations. |
| Configuration | DIP-switch Host & Target configurations / safe boot |
| Regulatory | CE Mark FCC Class A RoHS compliant UL94V-0 compliant |
| Standard(s) for Safety | UL 62368-1 and CAN/CSA C22.2 No. 62368-1-14 |
| Operating Systems | All |
| Part Number | Installed FireFly devices |
|---|---|
| PXH842 | Two x8 |
| PXH845 | Four x4 |
| PXH846 | One x8 |
| PXH847 | Two x4 |
| PXH848 | One x4 |