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MXH94x / MXH95x Transparent Adapter User’s Guide –

 Dolphin Interconnect Solutions  

 

 

 Page 6 

High Level Specification 

The MXH94x and MXH95x are a family of low profile, half-length PCIe adapters utilizing the Samtec 

FireFly™

 optical transceivers. It is 

available in several variants to support various use cases and configurations.  All boards are using a Gen4 PCIe switch from Microchip. 
The MXH94x boards are equipped with Samtec 

FireFly™ 

PCIe Gen4 optical transceivers. The MXH95x boards are equipped with the 

Samtec 

FireFly™ 

PCIe Gen3 optical transceivers. 

This manual covers all transparent variants of these cards. Please reference the tables below for details. Some variants come with NTB 
enabled firmware and are bundled with Dolphins eXpressWare. Please reference the Dolphin 
MXH94x / MXH95x NTB Adapter Users Guide if you have one of the NTB enabled variants. 
 
 
Each card operates at the highest common speed shared between the slot and the card (Gen4) and the widest common link-width 
(x16). 

PCIe Gen4 Link Transparent Product variants 

The variants in the table below support PCIe Gen4 link speed, Transparent Host and Target operations and come with a license to use 
the eXpressWare Board Management Software. Each Model has different 

FireFly™ 

optical engines mounted depending on your use case 

and requirements: 
 

SKU / Model 

#

FireFly™ 

  PCIe Configurations 

Required Fiber cable 

MXH942 

2 x8 

Transparent x16 / 2 x8 

2 units 24 fiber MPO  

MXH945 

4 x4 

Transparent x16 / 2 x8 / 4 x4 

4 units 12 fiber MPO 

MXH946 

1 x8 

Transparent x8 

1 unit 24 fiber MPO 

MXH947 

2 x4 

Transparent x8 / 2 x4 

2 units 12 fiber MPO 

MXH948 

1 x4 

Transparent x4 

1 unit 12 fiber MPO 

  

NOTE:

 Please note that cards utilizing 24 fiber MPO cannot be connected to cards utilizing 12 fiber MPO. 

PCIe Gen3 Link Transparent Product variants 

The variants in the table below support PCIe Gen3 link speed, Transparent Host and Target operations and come with a license to use 
the eXpressWare Board Management Software. Each Model has different 

FireFly™

 optical engines mounted depending on your use case 

and requirements: 
 

SKU / Model 

#

FireFly™ 

  PCIe Configurations 

Required Fiber cable 

MXH952 

2 x8 

Transparent x16 / 2 x8 

2 units 24 fiber MPO  

MXH955 

4 x4 

Transparent x16 / 2 x8 / 4 x4 

4 units 12 fiber MPO 

MXH956 

1 x8 

Transparent x8 

1 unit 24 fiber MPO 

MXH947 

2 x4 

Transparent x8 / 2 x4 

2 units 12 fiber MPO 

MXH948 

1 x4 

Transparent x4 

1 unit 12 fiber MPO 

  

NOTE:

 Please note that cards utilizing 24 fiber MPO cannot be connected to cards utilizing 12 fiber MPO. 

Detailed specifications 

 

PCI Express Base Specification, Rev. 4.0. 

 

PCI Express CEM Specification, Rev. 4.0. 

 

PCI Express Gen4 16 GT/s per lane signaling 

 256 GT/s total signaling. Variants utilizing Gen3 

FireFly™ 

modules are 

limited to PCIe Gen3 8 GT/S signaling rate on the optical link. 

 

PCI Express Gen4 x16 edge connector. The card installs in any PCI Express slot that has a physical x16 connector. 

 

Compliant with PCI Express Gen1 through Gen4 computers and IO systems, auto detection. 

 

MPO cable connector  

Содержание MXH94 Series

Страница 1: ...MXH94x MXH95x Transparent Adapter User s Guide Dolphin Interconnect Solutions Page 1 Dolphin MXH94x MXH95x Transparent Adapter Users Guide Version 1 0 Date 20th January 2021...

Страница 2: ...MXH94x MXH95x Transparent Adapter User s Guide Dolphin Interconnect Solutions Page 2...

Страница 3: ...ADAPTER CARD 9 STEP 5 INSTALLING AND REMOVING CABLES 9 Connecting Cables 9 Disconnecting Cables 9 STEP 6 INSTALLING THE DOLPHIN MANAGEMENT SOFTWARE 9 STEP 7 VERIFY INSTALLATION LEDS 10 OPERATION 11 C...

Страница 4: ...OT BE LIABLE FOR ANY INDIRECT INCIDENTAL SPECIAL OR CONSEQUENTIAL DAMAGES INCLUDING LOST PROFITS LOST DATA OR LOSS OF USE ARISING OUT OF ANY USE OF DOLPHIN S PRODUCTS SOFTWARE OR SERVICE PROVIDED DOLP...

Страница 5: ...nt Hot Add Attaching an IO Expansion system after the server is booted Target mode The card is installed in an expansion chassis or backplane for Transparent IO expansion Lane One PCI Express Lane con...

Страница 6: ...x16 2 x8 2 units 24 fiber MPO MXH945 4 x4 Transparent x16 2 x8 4 x4 4 units 12 fiber MPO MXH946 1 x8 Transparent x8 1 unit 24 fiber MPO MXH947 2 x4 Transparent x8 2 x4 2 units 12 fiber MPO MXH948 1 x4...

Страница 7: ...ches Host clock isolation Automatic support for host running CFC or SSC mode VAUX powered board management controllers for flexible configuration and cable management Flash recovery option PFX Multi c...

Страница 8: ...onnecting directly to the CPU for optimal IO latency Install the adapter card behind a PCIe switch in the IO system for optimal PCIe peer to peer performance e g between GPUs FPGAs Adapter Card Config...

Страница 9: ...requency clocking The card implements clock isolation Step 5 Installing and Removing Cables Installing and removing cables in NTB or Transparent Hot Add mode can be done while the systems are running...

Страница 10: ...wnload requires a password to log in The password will automatically be emailed to you if you follow the instructions found on the getting started document bundled with the adapter card If you fail to...

Страница 11: ...n Figure 1 DIP Switch shows the DIP switch for the adapter card It is used to select the operational mode Please leave all undocumented DIP switches in the default position Table 2 DIP Switch settings...

Страница 12: ...Transparent Target DIP ON DIP switch view A Transparent Target One x16 upstream port P1 P2 P3 P4 One x16 downstream port OPT 1 OPT 2 Transparent Use Cases The transparent adapter card may be used as...

Страница 13: ...s you can connect the cable between any port Transparent Use Case B 1 Host Dual Expansion Configuration The host has an adapter card configured for Transparent Host operation and a direct x4 or x8 ca...

Страница 14: ...serial number of the card i e MXH940 CC 012345 You can also get this information using lspci in Linux First identify the devices for the Dolphin Host card Then run lspci and identify the card It will...

Страница 15: ...roduction number 0x0000000A 0000010 in decimal Support More information about the product support and software downloads at http www dolphinics com mx Please email pci support dolphinics com if you ha...

Страница 16: ...for FireFly Gen4 v1 and FireFly Gen3 MXH94x BB MH95x BB Support for FireFly Gen3 and FireFly V2 Current version MXH94x CC MH95x CC Same as MXH94x BB MH95x BB optimized for volume manufacturing Planne...

Страница 17: ...industry equipment installed in a standard PC EN 55032 EN 55024 Class A This does not ensure that it will comply with these standards in any random PC It is the responsibility of the integrator to ens...

Страница 18: ...ng or abnormal working conditions Damages which result from violating the specified operating or storage temperatures and airflow Damages caused by acts of nature e g floods storms fire or earthquakes...

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