VXS Cover

VMESwitched

Serial

“VXS” is a trademark of VITA

VXS Overview

• Adds switched serial interconnect(s) to the VME architecture coincident with the VMEbus parallel bus.

• Employs standard open technology for the serial switched links.• Accommodates multiple switched serial technologies, but not

necessarily at the same time.• Utilizes MULTIGIG RT 2 connector in P0 position. Demonstrated

to support 10 Gb/s.• Pulls additional DC power onto each VME card over existing

P1/P2 pins (VITA 1.7).• Maintains backward compatibility.

VXS Family of Standards

ANSI/VITA Standard

Draft Standard

VXS 41.1

InfiniBand Protocol Layer

VXS 41.2

Serial RapidIO Protocol Layer

VXS 41.8

10GbE Protocol Layer

VXS 41.3

GbE Protocol Layer

VXS 41.4

PCI Express Protocol Layer

VXS 41.5

Aurora Protocol Layer

VXS 41.6

1x Gigabit Ethernet Control

Channel Layer

VXS 41.0VMEbus Switched Serial

Base Specification

VXS 41.10

Live InsertionSystem

Requirements

Relative Bus Performance

Feature PCI bus PCI-X VME64 2eSST VME VXS

Topology Shared bus Shared bus Shared bus Shared bus Switched serial

Theoretical maximum bandwidth 264 MB/s 1064 MB/s 80 MB/s 320+ MB/s 2.5 Gb/s per

1x link

Practical maximum bandwidth ~100 MB/s ~760 MB/s ~40 MB/s 320 MB/s 8 Gb/s

Simultaneous transactions 1 1 1 1 Many

Aggregate bandwidth ~100 MB/s ~760 MB/s ~40 MB/s 320 MB/s 36 GB/s

Bus performance is a reason to use VME!

Why VXS?

• The most demanding applications (e.g. SPE, radar, sonar, image processing, etc.) require:– High performance, scalable processing power– Very high data transfer capabilities– Extremely low latency

• Currently these applications make use of:– VMEbus for “control plane” communication– A proprietary or quasi-standard bus for “data plane” communication

• Standard interfaces are now able to address these needs and provide:– Less Contention– Increased Scalability– Less Routing Real Estate– Higher Bandwidth– Low Latency

Multiple Topologies

Dual Star Single Star Mesh

VXS components

Payload board Switch board

Example backplaneNote: not all backplanes would need a switch!

P0 connector200 insertions

Courtesy Tyco Electronicswww.multigigrt.com

Alignment and Protocol Keying

VMEbus

VXS Switch Card Connection Example

SwItch

slot

P2

P0

P1An example

8 user-slot,1 switch card backplane

FabricSwitch

Slot 1 linkSlot 2 linkSlot 3 linkSlot 4 linkSlot 5 linkSlot 6 linkSlot 7 linkSlot 8 link

VXS Switch Card (no VME)

Logical connections to switch card

Slot8

P1

P0

P2

Slot1

P1

P0

P2

Slot2

P1

P0

P2

Slot3

P1

P2

Slot4

P1

P0

P2

Slot5

P1

P0

P2

Slot6

P0 Slot7

P0

VXS Backplane

VME – VXS Compatibility

2eSSTVMELegacy

VME

VXS +2eSST VME

Fabric Only VXS(no parallel bus)

Parallel Bus Compatible

Switched Serial Compatible

All of these cards can coexist in the same VXS chassis

Cap

abili

ty

Payload Board

Top Handle

Bottom Handle

Front Panel4 HP

P1

P2

P0K0

Photo courtesy of TEK Microsystems, Inc.

Switch Board

VXS: Connectors

VITA 41 payload board P0 connector

VITA 41 switch card P1-P5 connectors

VXS Suppliers

Supplier SBC Switch

DSP/FPG

A

A/D Converter

Digitizer (DAC)

Backplane

Chassis/Enclosur

e

Extender Card

Software Defined Radi

o

Receiver

RF Tune

r

Data Recorde

r

Systems

Developmen

t Platform

Concurrent Technologies Plc CSP Inc. Curtiss-Wright Controls, Inc. Elma Bustronic Corporation Elma Electronic Inc. EVOC Intelligent Technology

Hartmann Electronic Mercury Computer Systems, Inc. Meritec / Joy Signal Technology Pentek, Inc. SIE Computing Solutions TEK Microsystems, Inc. W-IE-NE-R, Plein & Baus GmbH

VXS Products

TEK Microsystems, Inc.Atlas

TEK Microsystems, Inc.ADC-DCA

Pentek, Inc.4207

CSP Inc.M16 Switch

VXS Products

Elma VXS 18 Slot

Hartmann VXS Backplane

VXS

Details

VXS is Fabric Agnostic

• VXS provides multi Gb/sec serial switched fabric capability to Eurocard VMEbus form factor using P0

• Accommodates multiple interconnect technologies– 41.1 – InfiniBand– 41.2 – Serial RapidIO– 41.3 – 1000BaseCX Ethernet – 41.4 – PCI Express– 41.5 – Aurora– 41.6 – 1x Gigabit Ethernet Control– 41.8 – 10GbEthernet

Performance for the Future!

1 MB/s 10 MB/s 100 MB/s 1 GB/s 100 GB/s10 GB/s

VME64 MBLT

VME64 MBLT w/Tsi148

VME 2eSST w/Tsi148

VXS Generation 1(3.125 Gbps links)

VXS Generation 2(5.0 Gbps links)

VXS Generation 3(6.4 Gbps links)

VXS = 8 lanes/slot x 18 slots/chassis

VXS versus VPX

VXS VPX30G Performance x xFull ecosystem x xBackwards compatibility x w/hybrid onlyUse of both PMCs & XMCs x XMC onlyLow hardware costs xLow software upgrade costs xSimple design, implementation xFully defined and mature specification xMore available slots in 19" chassis (typical) x100G+ performance xAmount of user IO xStandard RTM connector/solution x varies

Slot pitch .8" payload1.0" switch 1.0" typical

Base Maximum channels Switch: 192 pairs, Payload: 16 pairs

6U: 192 pairs3U: 64 pairs

Sizes 6U 3U, 6UVoltages 3.3V, +V5, +-V12 5V, 12V, 48VTopologies (typical) Star, Dual Star Mesh, Hybrid

VXS Market Opportunities

• Program requirements are demanding VXS solutions! • VXS allows existing deployed systems to scale in compute

capacity and capability while preserving past hardware and software investments. New applications with the same I/O.– Combat Vehicle Systems– Medical: CT, MRI, X-Ray

• VXS permits customers to migrate to, and bridge from, current legacy interconnects to unifying high performance network.– Navy Shipboard Systems

• VXS permits high speed data pipes and content alongside real time processing.– Airborne ISR

Payload P0 Pin Definition

• RapidIO Pinout• Each payload board

supports up to two 4X Serial RapidIO ports.

Example Fabric PinoutVITA 41.2

Insertion Force

Switch Board

Mating Force Unmating ForceTest Value Maximum Test Value Minimum

P5 82 N 108 N 39 N 22 NP4 82 N 108 N 39 N 22 NP3 82 N 108 N 39 N 22 NP2 82 N 108 N 39 N 22 NP1 82 N 108 N 39 N 22 NPPWR1 22 N 22 N 22 N 22 NSum 463 N (105 lbf) 586 N (105 lbf) 215 N (105 lbf) 136 N (105 lbf)

Payload Board

Mating Force Unmating ForceTest Value Maximum Test Value Minimum

P0 77 N 101 N 37 N 20.3 NN = Newtons

VXS Backplane Configuration - Maximum

VXS is NOT limited to the configuration depicted in the example diagram of the 41.0 base spec!

Dual starSingle starDaisy chainSmall mesh

Photo courtesy of Elma Electronic, Inc.

VXS Alternate Backplane Configurations

6 VXS + 1 switch + 1 VME64X

Photo courtesy of Hartmann Electronic

6VXS + 2 switch

Photo courtesy of Elma Electronic, Inc.

18 VXS + 2 switch + 1 VME64XPhoto courtesy of Hartmann Electronic

VXS No Switch Slot Configuration

3 slot - 0 switch, 3 payload

All of these configurations and

topologies use the same VXS payload board

• No switch• Active backplane switching

RTM Keying Solution

FrontAlignment

Rear Alignment

IEC 61076-4-101 Keying

M2 Screw

Gb Ethernet Pin Mapping (VITA 41.3)

  Row G Row F Row E Row D Row C Row B Row A

1 PA_SCL E0_TX- E0_TX+ GND E0_RX- E0_RX+ GND

2 GND GND E1_TX- E1_TX+ GND E1_RX- E1_RX+

3 PA_SDA E2_TX- E2_TX+ GND E2_RX- E2_RX+ GND

4 GND GND E3_TX- E3_TX+ GND E3_RX- E3_RX+

5 RFU GND RFU RFU GND RFU RFU

6 GND RFU RFU GND RFU RFU GND

7 RFU GND RFU RFU GND RFU RFU

8 GND RFU RFU GND RFU RFU GND

9 RFU GND RFU RFU GND RFU RFU

10 GND RFU RFU GND RFU RFU GND

11 PEN* GND RFU RFU GND RFU RFU

12 GND E4_TX- E4_TX+ GND E4_RX- E4_RX+ GND

13 PB_SCL GND E5_TX- E5_TX+ GND E5_RX- E5_RX+

14 GND E6_TX- E6_TX+ GND E6_RX- E6_RX+ GND

15 PB_SDA GND E7_TX- E7_TX+ GND E7_RX- E7_RX+

PCI Express Pin Mapping (VITA 41.4)

  Row G Row F Row E Row D Row C Row B Row A1 PA_SCL GND PA_TX0- PA_TX0+ GND PA_RX0- PA_RX0+

2 GND PA_TX1- PA_TX1+ GND PA_RX1- PA_RX1+ GND

3 PA_SDA GND PA_TX2- PA_TX2+ GND PA_RX2- PA_RX2+

4 GND PA_TX3- PA_TX3+ GND PA_RX3- PA_RX3+ GND

5 RFU GND RFU RFU GND RFU RFU6 GND RFU RFU GND RFU RFU GND7 RFU GND RFU RFU GND RFU RFU8 GND RFU RFU GND RFU RFU GND9 RFU GND RFU RFU GND RFU RFU

10 GND RFU RFU GND RFU RFU GND11 PEN* GND RFU RFU GND RFU RFU12 GND PB_TX0- PB_TX0+ GND PB_RX0- PB_RX0+ GND

13 PB_SCL GND PB_TX1- PB_TX1+ GND PB_RX1- PB_RX1+

14 GND PB_TX2- PB_TX2+ GND PB_RX2- PB_RX2+ GND

15 PB_SDA GND PB_TX3- PB_TX3+ GND PB_RX3- PB_RX3+

Gigabit Ethernet Control Pin Mapping (VITA 41.6)

  Row G Row F Row E Row D Row C Row B Row A1 PA_SCL GND PA_TX0- PA_TX0+ GND PA_RX0- PA_RX0+

2 GND PA_TX1- PA_TX1+ GND PA_RX1- PA_RX1+ GND

3 PA_SDA GND PA_TX2- PA_TX2+ GND PA_RX2- PA_RX2+

4 GND PA_TX3- PA_TX3+ GND PA_RX3- PA_RX3+ GND

5 RFU GND PA_SGTX- PA_SGTX+ GND PA_SGRX- PA_SGRX+

6 GND RFU RFU GND RFU RFU GND7 RFU GND RFU RFU GND RFU RFU

8 GND RFU RFU GND RFU RFU GND9 RFU GND RFU RFU GND RFU RFU

10 GND RFU RFU GND RFU RFU GND11 PEN* GND PB_SGTX- PB_SGTX+ GND PB_SGRX- PB_SGRX+

12 GND PB_TX0- PB_TX0+ GND PB_RX0- PB_RX0+ GND

13 PB_SCL GND PB_TX1- PB_TX1+ GND PB_RX1- PB_RX1+

14 GND PB_TX2- PB_TX2+ GND PB_RX2- PB_RX2+ GND

15 PB_SDA GND PB_TX3- PB_TX3+ GND PB_RX3- PB_RX3+

• Customer Challenge - Consolidate computing, preserve existing I/O designs and interfaces, design an architecture that will scale computing capability.

CASE: Clustering CPU Resources - Challenge

Computing and I/O is now distributed throughout the vehicle in various sub-assemblies

• VXS Solution - Consolidate computing into single chassis with low latency high speed interconnect (InfiniBand), bridge to existing VMEbus I/O designs with VMEbus repeater.

CASE: Clustering CPU Resources- Solution

Switched-serial backplane fabric provides ability to scale and cluster computing resources.

SWITCHES

• Customer Challenge – Integrate sensor front-end processing with post-processing. Reduce the time from information acquisition to action. Integrate high speed data pipes with real time sensor processing.

CASE: Data Pipes & Real Time Requirements

NETWORKSENSORSUITE

PLATFORM 2• Sensor front-end• Real-time requirements• Customer-specific VMEbus designs

PLATFORM 1• Post Processing• Not co-located with sensor• Large integrated data payload

• VXS Solution – High speed local interconnect and computing integrated with customer-specific front-end processing. One platform for real-time processing, high speed content processing, distribution.

CASE: Data Pipes & Real Time Requirements

SWITCHES

• Customer Challenge - Consolidate computing, preserve existing I/O designs and interfaces, design an architecture that will scale computing capability.

CASE: Clustering CPU Resources

Computing and I/O is now distributed throughout the vehicle in various sub-assemblies

• VXS Solution - Consolidate computing into single chassis with low latency high speed interconnect (InfiniBand), bridge to existing VMEbus I/O designs with VMEbus repeater.

CASE: Clustering CPU Resources

Switched-serial backplane fabric provides ability to scale and cluster computing resources.

SWITCHES

)

LAN

L

System Domain 3

• Customer Challenge – Evolve to a single high performance network interconnect, maintain interfaces to existing network and data links on proven VME hardware, consolidate networking across system application domains.

CASE: Evolve to Single Interconnect

)

LAN

L

System Domain 2

)

LAN

L

System Domain 1

• Ethernet• 1553• SCSI• FDDI• ATM• MIL-STD-1397• MIL-STD-751• HIPPI• RS-232/422• Other

• VXS Solution – Provide a unifying high performance interconnect while supporting the wide range of existing legacy interconnects supported on qualified VMEbus board level product.

CASE: Evolve to Single Interconnect

Gateway to existing interfaces, enables integration and unification of the network, bandwidth in and out of the box, supports “spiral development”