MXH942 Host and Target Transparent Cable Adapter
PCI Express 4.0 Transparent Host and Target Adapter
The MXH942 Gen4 PCI Express Transparent Host and Target Cable Adapter is our high performance optical interface to external IO subsystems. Based on Microchip PFX Gen 4.0 PCI Express bridging architecture and Samtec PCIe Gen4 FireFly® optical engine, the MXH942 adapter includes advanced features for transparent operations and clock isolation.
- x16 PCI Express edge port
- Two x8/x4 PCIe optical cable ports
- Total 256 GT/s Throughput
- 100 ns Cut-Through Latency
- Low Profile Design
- PCIe Gen4
- Dual MPO connectors
- Samtec FireFly optical engine
- Host and Target operations
- Transparent bridging
Product Data
The MXH942 Gen4 PCI Express Host Adapter is our high performance cabled interface to external IO subsystems. Based on Microchip PFX Gen4 PCI Express bridging architecture, the MXH942 Transparent Host and Target adapter includes advanced features for transparent bridging (TB), host and clock isolation. The MXH942 card utilizes the Samtec PCIe 4.0 FireFly® optical engine enabling distances up to 100 meters.
The MXH942 card is a transparent only product. To utilize Dolphin's PCIe clustering software, you need to purchase the MXH940 Gen4 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 |
|---|---|---|---|
| MXH942 | Two x8 | x16, Two x8 | Two 24 strand |
| MXH945 | Four x4 | x16, Two x8, Four x4 | Four 12 strand |
| MXH946 | One x8 | x8 | One 24 strand |
| MXH947 | Two x4 | x8, Two x4 | Two 12 strand |
| MXH948 | One x4 | x4 | Four 12 strand |
Fiber MPO Patch Cables
The MXH94x 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® 4.0 compliant - 16.0 GT/s per lane
- Slot compliant with PCIe Gen 1.0, 2.0, 3.0
- Samtec PCIe 4.0 FireFly® optical engine
- MPO connectors
- Four x4 PCI Express 4.0 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 | 64 Gbit/s per port, total 256 GT/s |
| Cut Through Latency | 100 nanoseconds |
| Active Components | Microchip Gen 4.0 PCI Express Switch |
| Samtec FireFly | PCI Gen 4.0 |
| PCI Express® | Base Specification 4.0 |
| 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 (Max) | 12 Volt: 2.95 A |
| 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: 700 LFM (Preliminary) 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 |
| Regulatory Compliance | CE Mark FCC Class A RoHS compliant |
| Operating Systems | All |
| Part Number | Installed FireFly devices |
|---|---|
| MXH942 | Two x8 |
| MXH945 | Four x4 |
| MXH946 | One x8 |
| MXH947 | Two x4 |
| MXH948 | One x4 |