PCIe2-2709 User`s Manual
Contents
1. INTRODUCTION ld CYCLONE Microsystems Table 1 3 2180W N 1 Redundant Power Supply Voltage 90 264 VAC Frequency 47 63 Hz Input Current 30A 115 VAC 15A 230 VAC Maximum Inrush Current 30A 115 VAC 15A 230 VAC per Module Total DC Output 2180W DC Output Specs Output Voltage Output Current Output Current Min Max 5V 1 24 12V 6 178 12V 0 1 5 3 3V 1 24 5VSB 0 1 4 Table 1 4 1250W Power Supply Characteristics Voltage 90 264 VAC Frequency 47 63 Hz Input Current 15A 100 VAC 7 5A 240 VAC Maximum Inrush Current 50A 115 VAC 100A 230 VAC Total DC Output 1250W DC Output Specs Output Voltage Output Current Output Current Min Max 5V 0 25 12V 0 6 104 12V 0 0 5 3 3V 0 25 5VSB 0 3 1 3 STANDARDS PCI Express Base Specification Revision 2 0 PCI Express Card Electro Mechanical Specification 2 0 PCI Express External Cabling Specification 2 0 PCle2 2710 PCI Express Gen2 Expansion System User s Manual Revision 1 1 January 2012 14 INTRODUCTION CYCLONE Microsystems 1 4 ORDERING INFORMATION The expansion system is avaliable with one or three meter cable standard or low profile panels on the Host Bus Adaptor PCle 426 1250W 2180W or 3240W power supply and the optional Chassis Monitor board Cyclone Part Numbers 600 2709 1 12 S Expansion System with 1 meter cable and 1250W Power Supply 4U chassis 600 2709 3 12 S Expansion System wi2. 2 3 6 POWER CONSIDERATIONS nennen tener enr sein netten a stets enr e nnn sen nene 3 3 3 7 PCI E AUXILARY POWER CONNECTORG sese enne nnne sen rente nnn nennen 3 4 CHAPTER 4 43 SYSTEM POWEB UD 2 rette A A ade eg deret net 4 1 42 SEATING OP OAR D O ieiunii ete tbe tp edere ie tidad 4 1 4 3 PCle2 426 HOST BUS CABLE ADAPTER cccceceeeeeeeceeeceeeeeaeeeeeeeeeeeaaeseceeeesaaeeeeeeeeessaeesseneees 4 1 43 51 POlE2 426 POWGEL inet mre bite tbc bee eee eb es tek lr 4 1 4 3 2 PCle2 426 Mechanical 4 1 4 3 9 TEE Rue Te e 4 1 4 3 4 PCle2 426 Output Swing De Emphasis and Receive Eoualtzaton eese 4 2 4 4 PCIE 436 UPSTREAM CABLE ADAPTER coooncccccconcnnnnnccnnnnnnnnnnccconnnnnnnnn cn carr crac cren rra 4 2 Adal POLE 436 POWER Lido He edited s ie pa ehe I Roe pa Pop dE eech 4 2 4 4 8 PCle 436 Mechanical 4 2 4 4 8 PCle 436 LED Indicators cnn 4 3 4 44 PCle 436 Output Swing De Emphasis and Receive Equalization ssss 4 3 4 5 LINK INDICATION LED DEFINITION PCle A8 4 3 4 6 SYSTEM MONITOR BOARD 4 4 CHAPTER 5 SCT PHYSIGAL GONFIGURATION atit redit ii e pex ed 5 1 CHAPTER 6 63 REFERENGE sir aba adi xe cte etri toda ed dita dote ded 6 1 i PCle2 2709 PCI Express Gen2 Expansion System User s Manual Revision 1 1 January 2012 CONTENTS L I CYCLONE Microsystems LIST OF FIGURES Figure 1 1 PCle2 2709 Block Diagram oooccccnnnccnnnncccnnnccnnnncnnnnnr cnn anna 1 2 Figure 5 1 PCle2 428
3. Physical Confguration enne nennen 5 1 Figure b 2 POle2 426 LEDS eie tere eos en et e E nee P ebrei Eb itu oerte deuten 5 2 Figure 5 3 PCle2 426 Physical Confiouratton nnne nnns 5 2 Fig re 5 4 PCle 436 LEDS ap e UD E eite e RR Fa Re tp d Eve a d e 5 3 Figure 5 5 PCle 436 Physical Configuration sese ennemis 5 3 Figure 5 6 PCle2 2709 5U Chassis ccoooocccnnnccconncnncnonccnnncncnnanncn non nn nan carr rra 5 4 LIST OF TABLES Table 1 1 Physical Environmental Characteristics ooooocinnnninncccnnnnnnnnnccnconcrannncccrnrrnnn nn 1 3 Table 1 2 3240W N 1 Redundant Power Supply Characteristics sess 1 3 Table 1 3 2180W N 1 Redundant Power Guppiy eene nennen 1 4 Table 1 4 1250W Power Supply Characteristics sssssssssssssseeeeee eene 1 4 RE Da Ee Ee TTT 3 1 Table 3 2 1250W Power Supply Minimum Loadimg sse 3 3 Table 3 3 2180W 3240W Power Supply Minimum Loading s sssesesseeessneenessenssinsssrnnnsrnssennsennnsneee 3 3 Table 3 4 PCle2 428 Power Requirements esses eene nennen nennen nennen 3 3 Table 3 5 PCle2 426 Power Requirements oooonoccconccccnococcnonnconononcnnnnn cnn nn anna n cra n nana nnne nennen 3 4 Table 3 6 Power Supplied Per PCle Got 3 4 Table 4 1 PCle2 426 Default DIP Switch Configuration 0 cccccecceeeeeeeeeeceeeeeeeeeeaeeeeeeeeetaeeeeeeeees 4 2 Table 4 2 Links Rue let EE Aaa eite 4 3 ii PCle2 2709 PCI Express Gen2 Expansion
4. into the host PC the cable connected to the PCIe2 2709 chassis the chassis plugged into an AC power outlet and any desired add in cards are installed the system is ready to be turned on When the host is turned on a signal from the PCle 426 will turn on the PCIe2 2709 chassis A number of things happen at this point First the PCI Express links are initialized This is a purely hardware initialization where each PCI Express link is set up following a negotiation of lane widths by the two ends of each link No firmware or operating system software is involved Once the links are initialized or trained there are LED indicators on each of the Cyclone Microsystems cards that indicate the links are trained A detailed explanation of the LEDs follows later in this manual One essential requirement for system initialization is the ability of the host system s BIOS to be able to enumerate the many bridges inherent in a complex PCI Express design The links from the PCIe 426 to the PCIe 428 are created with PCI Express Switches Each link looks like a PCI to PCI bridge to the Host s BIOS The number of bridges can add up quickly Older BIOS may not have the resources to enumerate the number of bridges Make sure that the BIOS on the host computer has the latest updated BIOS If required contact the host system s manufacturer to make sure that the BIOS used can handle the large number of bridges that it will see in the system PCle2 2709 PCI Express Gen
5. mini ATX power supply Power entry is cabled to a receptacle located at the rear of the chassis The supply outputs are modular providing the 24 pin ATX 8 pin EPS and 4 pin EPS power connectors required by the PCIe 428 backplane The 1250W supply can be configured to also provide up to eight 6 2 pin PCle power connectors for use the GPUs and other high powered PCle cards as well as eleven Serial ATA power connectors for disk drives and other peripheral devices 3 4 2 2180W 3240W Power Supply Options The SU chassis option is powered by an N 1 redundant supply providinig either 2180W or 3240W of total power Four individual power supply units reside across the bottom rear of the chassis and slide into the redundant power supply housing In this configuration any one power supply module can fail and the chassis will still provide full power capacity Should one power supply unit fail an alarm will sound The supplies are hotswappable an individual supply can be replaced while the unit remains powered on Removing an individual supply is done by loosening the thumb screw then pushing outwards on the release tab while pulling the supply out of the housing Replacement power supply units are available from Cyclone 3 2 PCle2 2709 PCI Express Gen2 Expansion System User s Manual Revision 1 1 January 2012 CYCLONE Microsystems 3 5 3 6 Zi EXPANSION CHASSIS The N 1 redundant supplies provide one 24 pin ATX power connector and two 8 pi
6. system upon boot up requires no hardware specific drivers and is entirely host operating system agnostic The PCIe2 27090 system is composed of three elements a PCI Express Host Bus Cable Adapter an Expansion System Cable and an Expansion Chassis The PCIe 426 Host Bus Cable Adapter card is to be inserted into a host computer s x16 PCIe Gen2 slot The x16 PCIe expansion cable links the PCI host with the expansion chassis The expansion chassis is populated with the PCIe 428 Switched Backplane the PCIe 436 Upstream Cable Adaptor and optionally a System Monitor board PCI Express is a high performance general purpose I O inter connect defined for a wide variety of computing and communication platforms Key PCI attributes such as its usage model load store archi tecture and software interfaces are maintained whereas its parallel bus implementation is replaced by a serial interface PCI Express take advantage of recent advances in point to point inter connects switch based technology and packetized protocol to deliver new levels of performance PCle2 2709 PCI Express Gen2 Expansion System User s Manual 1 1 Revision 1 1 January 2012 INTRODUCTION 1 I l PCle2 426 AR Host PCI Express 1 1 I 1 I I System I I I PCI Express x16 Gen2 PCle2 428 Expansion Backplane J18 PCle2 ri lo 4 317 PAN gt J16 Mecas a J15 POl2x4Slt J14 AA y gt J13 PCle2x4Slot Ji2 Plea xB Sit PCle2 poe
7. x8 Slot e Switch gt 96 Lanes J9 J8 J7 PCle2x8Slt J6 J5 PCle2x4Slot J4 J3 J2 J1 PCOl2xiSit Figure 1 1 PCle2 2709 Block Diagram LU PCle2 2710 PCI Express Gen2 Expansion System User s Manual Revision 1 1 January 2012 L I INTRODUCTION CYCLONE Microsystems 1 2 SPECIFICATIONS The specifications in Table 1 1 detail the PCle2 2709 Expansion System chassis including the PCIe 428 expansion backplane PClIe 436 Upstream Cable Adaptor and chassis power supply The chassis also includes four 77 CFM fans Table 1 1 Physical Environmental Characteristics Height 8 75 inches 5U Chassis 7 inches 4U Chassis Width 17 inches Depth 27 inches Weight 80 Ibs BU chassis 50 Ibs 4U chassis Operating Temperature 0 to 50 Degrees Celsius Relative Humidity 0 to 95 non condensing Storage Temperature 20 to 70 Degrees Celsius Table 1 2 3240W N 1 Redundant Power Supply Characteristics Voltage 90 264 VAC Frequency 47 63 Hz Input Current 45A 115 VAC 22 5A 240 VAC Maximum Inrush Current 30A 115 VAC 15A 230 VAC per Module Total DC Output 3240W DC Output Specs Output Voltage Output Current Output Current Min Max 45V 1 24 12V 6 263 12V 0 15 3 3V 1 24 5VSB 0 1 4 PCle2 2709 POI Express Gen Expansion System User s Manual 1 3
8. 2 Expansion System User s Manual 2 1 Revision 1 1 January 2012 ld CYCLONE Microsystems 3 1 3 2 CHAPTER 3 EXPANSION CHASSIS PCIE2 2709 CHASSIS The PCIe 428 Expansion Backplane is installed into a 20 slot rack mountable chassis Depending on the power supply configuration the chassis is either 4U 1250W single supply or 5U 2180W or 3240W N 1 redundant supply The chassis also contains multiple drive bays that may be used to install peripheral devices for specific applications SEATING OF CARDS Unlike standard PC applications the PCIe2 2709 Expansion Systems has a narrow lower gate that precisely engages the lower end of the PCI Express Add In board s face panel The purpose is to ensure correct electrical connector mating of up plugged boards Failure to accurately mate the lower end of the face panel with the chassis lower gate will lead to the board not being recognized by the host Table 3 1 Slot Capabilities PCle2 2709 PCI eo Revision 1 1 January 201 Gena Expansion System User s Manual Slot Connector Lanes Width J1 x4 connector x4 lanes single J2 x4 connector x4 lanes single J3 x4 connector x4 lanes single J4 x4 connector x4 lanes single J5 x4 connector x4 lanes single J6 x4 connector x4 lanes single J7 x8 connector x8 lanes single J8 x8 connector x8 lanes single J9 x1 connector Monitor Slot single J10 x16 connector Upstream Cable Slot single J11
9. 6 is installed in and powered by the host supply Consequently the PCIe 426 should not be included as a component of the Expansion Chassis power budget Table 3 2 1250W Power Supply Minimum Loading Voltage Minimum Status Load 5VSB 0A On board circuitry meets power supply minimum 5V 0A On board circuitry meets power supply minimum 3 3V 0A On board circuitry meets power supply minimum Jumpers Z3 and Z4 can be used to meet power supply SE ES minimum 0 5A per jumper PCle2 2709 PCI Express Gen Expansion System User s Manual 3 3 Revision 1 1 January 201 EXPANSION CHASSIS 14 CYCLONE Microsystems Table 3 3 2180W 3240W Power Supply Minimum Loading Voltage Minimum Status Load 5VSB 0 1A On board circuitry meets power supply minimum 5V 1A Install jumper Z5 to meet power supply minimum 3 3V 1A On board circuitry meets power supply minimum Cards must be installed to meet minimum load 12V 6A Jumpers Z3 and Z4 can be used to help meet power supply minimum 0 5A per jumper Table 3 4 PCle 428 Power Requirements Voltage Current Current Note Typical Maximum 45V 0 1A 0 1A Not used On board circuitry sets current draw Not used On board circuitry draws 0 5A and in oon 1A jumper Z5 can add another 0 5A Maximum is PCle 428 circuitry plus 16 slots 3 3V 1 5A 1 5A 48A x3A per slot 48A Maximum is PCle 428 circuitry plus 16 slots PLEN 1 SES x5 5
10. 759 3735 www plxtech com PCI Express Base Specification Revision 2 0 PCI Express Card Electromechanical Specification Revision 2 0 PCI Express External Cabling Specification Revision 2 0 PCI Special Interest Group PCISIG 5440 SW Westgate Dr 217 Portland OR 97221 503 291 2569 503 297 1090 Fax www pcisig org PCle2 2709 PCI Express Gen2 Expansion System User s Manual 6 1 Revision 1 1 January 2012
11. A per slot 88A Table 3 5 PCle 426 Power Requirements Voltage Current Typical Current Maximum 3 3V 1 09 Amps 1 60 Amps 12V 0 Amps 0 Amps The PCIe 426 does not use 12V Table 3 6 Power Supplied Per PCle Slot Voltage Current Maximum Voltage Tolerance 3 3V 3 0 Amps 9 12V 5 5 Amps 8 3 7 PCI E AUXILARY POWER CONNECTORS Some PCIe add in cards especially video cards require more power than the PCIe spec of 75W per slot can provide These cards will have a six or eight position Molex type power connector probably located at the top or rear edge of the card The power supply in the expansion chassis has eight PCIe auxilary power cables labeled PCI E available for these card types GPU users should verify that all external power connections to their cards have been made 3 4 PCle2 2709 PCI Express Gen2 Expansion System User s Manual Revision 1 1 January 2012 14 CYCLONE Microsystems CHAPTER 4 SYSTEM OPERATION 4 1 SYSTEM POWER UP The host PC with the PCIe 426 installed controls power up for the entire system The PCI Express cable should be connected between the PCIe 426 and the PCIe 436 PCIe 428 and the PCIe2 2709 power cords should be connected to the chassis and plugged into power outlets There is a power button on the front of the PCIe2 2709 Expansion Chassis however it is not connected and serves no practical purpose in this applicati
12. NT signal is asserted The PCIe 426 chassis asserts CPRSNT to indicate that it is present the cable is connected and power is good If this LED is OFF there may be a problem with 3 3V power in the expansion chassis or the PCIe Expansion Cable is not connected properly The top or right LED on the panel is a PCIe Link Indicator This yellow LED is ON solid when all cable lanes used and are operating at Gen2 rates A cable link running at Genl rates and or using less lanes than available will indicate status with a blinking LED The blinking pattern is the same as the slot indicators see Table 4 2 PCle 436 Output Swing De Emphasis and Receive Equalization The transceiver silicon used on the PCIe 436 has eight steps of programmable de emphasis four steps of output swing and eight steps of receive equalization The as shipped default configuration of the transceiver silicon is what Cyclone Microsystems has determined is the best setting for Gen2 operation with both 1m and 3m PCIe cables shipped with Cyclone PCIe Expansion systems This configuration will also function adequately for Genl operation LINK INDICATION LED DEFINITION PCle 428 The PCIe 428 has thirty three green LEDs to indicate the link status of each slot and the cable Each slot and has two redundant LED link status indicators Seventeen surface mount LEDs one for each slot and one for the cable are arranged in two colums in the corner of the board where the power enter
13. PCIE2 2709 PCIE GEN2 EXPANSION SYSTEM USER S MANUAL The information in this document has been carefully checked and is believed to be entirely reliable However no responsibility is assumed for inaccuracies Furthermore Cyclone Microsystems Inc reserves the right to make changes to any products herein to improve reliability function or design Cyclone Microsystems Inc neither assumes any liability arising out of the application or use of any product or circuit described herein nor does it convey any license under its right or the rights of others Revision 1 1 January 2012 Cyclone P N 800 2709 Copyright 2012 by Cyclone Microsystems Inc CONTENTS L I CYCLONE Microsystems CHAPTER 1 13 INTRODUCTION paient anan a a aa iaa i ands 1 1 12 SPEGCIFICATIONS 00 a Len I t ete dia oe Ba e ea ees 1 3 1 93 STANDARDS eebe ege tania 1 4 134 ORDERING INFORMATION aite eorr cad mal e be dip eens hele heh 1 5 CHAPTER 2 2 1 THEORY OF OPERATION sessi oaia nr nan nr aa aa ner itn rra nna sens aai nennen 2 1 CHAPTER 3 3 1 PGIE2 2709 GEHASSIS 1 gd Eee tmr E A cv Pod Lo de oet 3 1 3 2 SEATING OF CARDO oi tie eto Doinini etu ntis 3 1 30 S GHASSIS GOOPDINQ cata ola 3 2 3 4 CHASSIS POWER Ee SAA AAA AAA deve 3 2 3 4 4 1250W Power supply Option sse eene neret nnns 3 2 3 4 2 2180W 3240W Power Supply Options ooooccincccnnnnncccncccconocncconcconnnnn naar cnc narran rn 3 2 3 5 EIGET EOADING ii t en tle tente I Hb ee eu 3
14. System User s Manual Revision 1 1 January 2012 14 CYCLONE Microsystems CHAPTER 1 INTRODUCTION 1 1 INTRODUCTION The Cyclone Microsystems PCIe2 2709 is a PCI Express PCIe Gen2 expansion system that allows the user to add up to sixteen PCI Express add in cards Most PCs contain few PCI Express slots making them poorly suited for embedded systems requiring many different I O boards and co processor resources The PCIe2 2709 Expansion System has been designed for applications using multiple low cost off the shelf x4 and x8 PCIe devices The PCIe2 2709 PCI Express Expansion System permits system developers to use powerful and cost effective PCs as a foundation for a robust embedded system The sixteen PCI Express slots are organized as four x8 slots and twelve x4 slots and are all Gen2 capable All expansion slots utilize open back connectors facilitating plugging larger width cards into smaller slots down plugging full length and full height cards The PCIe2 27009 is available with either a 3240 W or 2180 W N 1 redundant power supply in a 5U chassis or a 1250 W standard ATX supply in a 4U chassis Both chassis are cooled by four 77 CFM hotswappable fans The Expansion System supports 80 Gb s bi directional traffic to and from the host system The system utilizes repeaters and non blocking PCI Express switches for excellent peer to peer I O bandwidth For PCs with modern BIOSs the PCIe2 2709 Expansion System is recognized by the host
15. at multiple board locations and the voltage of power supply rails and locally created voltages on the expansion board The monitor board has an ethernet port allowing the expansion chassis to be placed on a network where users can then remotely check expansion system status PCle2 2709 PCI Express Gen2 Expansion System User s Manual Revision 1 1 January 2012 14 os CHAPTER 5 PHYSICAL CONFIGURATION 5 1 PHYSICAL CONFIGURATION 0 D000 a cr T HD Ej mm cya omm mmm CS nn BF occ Lac o d ooo DDD ml I E a 3 3 lt H Bed JL Gr Hf 194 4154 3164 n J1 H 3 e LI L Fo em s Bal Je a a B 8 B la a a B 8 El B 8 B HE E B a E E El a B E B a B zi a 3 B 8 B A D e D l J B B E a 8 B EL m ww Bo 8 Ju 1 0 g gi H tn i E HU e nal asl nel n JJ a s D i i f d 7 Z y d d 1 ES ca n m pu 000D 0 Q PEXINTA 9 ios L KEREN D o O 20 00 B U J m ER D ok i 2 EXL2CFG 1 s z DH f j 1041 oof J40 F 39 r2 CYCLONE MICROSYSTEMS f H 2 61040 GE di mes P N 270 R0428 02 PA PEXFERR e LE ozi D D R COPYRIGHT 2012 H aen A O 180066 sa UU ga wg L 000 0 00 a reen gt nF m cools HIT TT 0 0 3 3Y GND d rr 7 Bal 27 Fa UU 2 10 GND 12V L SY 500 41 n i T3 12V S500mA ae m E ca Dimensions in Inches Figure 5 1 PCle 428 Physical Configuration Figure 5 1 is a phys
16. ators The bottom or left LED on the front panel is the Cable Present Detect LED This LED reflects the status of the CPRSNT signal in the PCIe Expansion Cable When the LED is ON it is indicating that the CPRSNT signal is asserted The PCle 426 chassis asserts CPRSNT to indicate that it is present the cable is connected and power is good If this LED is OFF there may be a problem with 3 3V power in the expansion chassis or the PCIe Expansion Cable is not connected properly PCle2 2709 PCI Express Gen2 Expansion System User s Manual 4 1 Revision 1 1 January 2012 SYSTEM OPERATION 4 3 4 Zi CYCLONE Microsystems The top or right LED on the panel is Expansion System Signal Detect The LED is on when the PCle 426 detects a signal on Lanes 0 3 of the PCIe cable The LED ON indicates normal operation If the LED is not on there is something wrong with the cable or the expansion system is not operating properly PCle 426 Output Swing De Emphasis and Receive Equalization The transceiver silicon used on the PCIe 426 has eight steps of programmable de emphasis four steps of output swing and eight steps of receive equalization The PCIe 426 has three DIP switches to adjust these settings on the cable interface The as shipped default DIP switch configuration is what Cyclone Microsystems has determined is the best setting for Gen1 or Gen2 operation with both the 1m and 3m PCIe cables shipped with Cyclone PCIe Expansion sys
17. ical diagram not to scale of the PCle 428 backplane showing the location designators of jumpers connectors and major ICs Refer to this figure when component locations are referenced in the manual text PCle2 2709 PCI TA Gene Expansion System User s Manual 5 1 Revision 1 1 January 201 PHYSICAL CONFIGURATION I CYCLONE Microsystems Expansion System Signal Detect LED Expansion System Present LED Figure 5 2 PCle 426 LEDs Figure 5 3 PCle 426 Physical Configuration 5 2 PCle2 2709 PCI Express Gen2 Expansion System User s Manual Revision 1 1 January 2012 L I PHYSICAL CONFIGURATION CYCLONE Microsystems Figure 5 4 PCle 436 LEDs Cable Link LED Expansion System Present LED Figure 5 5 PCle 436 Physical Configuration CYCLONE MICROSYSTENS 2 535 P N 270 R0436 04 COPYRIGHT 2011 PCle2 2709 PCI Express Gen2 Expansion System User s Manual 5 3 Revision 1 1 January 2012 PHYSICAL CONFIGURATION Y CYCLONE Microsystems Figure 5 6 PCle2 2709 5U Chassis 5 4 PCle2 2709 PCI Express Gen2 Expansion System User s Manual Revision 1 1 January 2012 Zi CYCLONE Microsystems CHAPTER 6 REFERENCE 6 1 REFERENCE MANUALS PEX 8696 96 Lane 24 Port PCI Express Gen2 Multi Root Switch Data Book Version 1 3 PLX Technology Inc Sunnyvale CA 800
18. n EPS connectors that power the PCIe 428 backplane Additionally the supplies provide eight six pin PCle power connectors and eight six plus two pin PCle power connectors for use with GPUs and other high powered PCIe cards There are also provides six SerialATA connectors for powering disk drives and other peripheral devices NOTE Users should be aware that 2180W or 3240W systems may exceed the power available from a standard 15A or 20A AC circuit When connecting to the AC mains care should be taken to use multiple AC circuits Otherwise problems with tripping circuit breakers can result LIGHT LOADING Because the power supply has been sized for a fully populated chassis when placed under light loading the supply may not stay in regulation Symptoms of a supply that is not regulating properly are loss of link back to the host CABLE LINK LEDs are not ON or a chassis that powers up momentarily then turns OFF Users of the N 1 chassis or those using their own chassis and power supplies need to be aware of the minimum loading requirements The 1250W chassis minimum loading can be met by using the on board jumpers The N 1 chassis will need to have cards installed to meet the 12V minimum loading Table 3 2 and Table 3 3 summarize the minimum loading requirements POWER CONSIDERATIONS Table 3 2 through 3 4 show the power consumption for the Cyclone Microsystems boards and the power supplied to PCI Express slots Note that the PCIe 42
19. on When the host PC is powered on a signal is sent over the PCI Express cable to turn on the PCIe2 2709 If the chassis does not power up make sure that all cards are seated properly the chassis is plugged in and the PCI Express cable is connected properly There is only one LED on the front of the expansion chassis that has meaning The green LED indicates that the chassis is powered 4 2 SEATING OF CARDS Unlike standard PC applications the PCIe2 2709 Expansion System has a narrow lower gate that precisely engages the lower end of the PCI Express Add In board s face panel The purpose is to ensure correct electrical connector mating of up plugged boards Failure to accurately mate the lower end of the face panel with the chassis lower gate will lead to the board not being recognized by the host 4 3 PCle 426 HOST BUS CABLE ADAPTER The PCIe 426 Host Bus Cable Adapter is installed in a host computer s x16 Gen2 slot providing an interface from the host to the x16 cable and in turn the expansion chassis It can also be plugged into Genl x16 slots reducing performance 4 3 1 PCle 426 Power The PCIe 426 only uses 3 3V power from the host see Table 3 2 4 3 2 PCle 426 Mechanical The PCIe 426 is a low profile PCI Express add in card and is available with either a standard height front panel or a low profile front panel See Figure 5 3 for a mechanical drawing of the card and Figure 5 2 for a front panel drawing 4 3 3 PCle 426 LED Indic
20. s see Figure 5 2 The LEDs are labeled J1 through J8 J11 through J18 and CABLE Sixteen surface mount LEDs are placed adjacent to each slot The LEDs are placed just off axis to the bottom side of an installed board so as not to be obscured by components on the board The LEDs are labeled SLOT J1 through SLOT J18 A fully functional link all lanes used and operating at Gen2 rates will have its LED ON solid A link running at Genl rates and or using less lanes than available will indicate status with a blinking LED The LEDs indicate link status as follows PCle2 2709 PCI Express Gen Expansion System User s Manual 4 3 Revision 1 1 January 201 SYSTEM OPERATION L I 4 6 4 4 CYCLONE Microsystems Table 4 2 Link LED Indication OFF ON Link is down Link is up all lanes Gen2 5GT s rate BLINK 0 5 seconds ON 0 5 seconds OFF Link is up reduced lanes Gen2 5GT s rate BLINK 1 5 seconds ON 0 5 seconds OFF Link is up all lanes Gen1 2 5GT s rate BLINK 0 5 seconds ON 1 5 seconds OFF Link is up reduced lanes Gen 2 5GT s rate SYSTEM MONITOR BOARD The PCIe2 2709 system has an optional System Monitor board It has the same outline and profile as a xl PCI Express add in card but it is not it has a proprietary pin out and should be installed ONLY in slot J9 of the PClIe 429 As it s name suggests the System Monitor board watches the operation of the cooling fans temperature
21. tems Users should not change the DIP switch settings unless they have the proper test equipment to verify their results Users change de emphasis output swing and receive equalization at their own peril The default DIP switch configuration is shown below Table 4 1 PCle 426 Default DIP Switch Configuration POSITION SWITCH S1 SWITCH S2 SWITCH S3 OFF OFF ON OFF ON ON ON ON ON 2 0 bh ON ON OFF 4 4 4 4 1 4 4 2 4 2 PCle 436 UPSTREAM CABLE ADAPTER The cable interface for the expansion chassis is the PCle 436 Upstream Cable Adapter It is only installed in slot J10 of the PCIe 428 PCle 436 Power The PCIe 436 only uses 3 3V power from the expansion chassis PCle 436 Mechanical The PCIe 436 has the same outline as a low profile x16 PCI Express add in card but it is not it has a proprietary pin out and should be installed ONLY in slot J10 of the PCle 428 See Figure 5 4 for a mechanical drawing of the card and Figure 5 5 for a front panel drawing PCle2 2709 PCI Express Gen2 Expansion System User s Manual Revision 1 1 January 2012 CYCLONE Microsystems Zi 4 4 3 4 4 4 4 5 SYSTEM OPERATION PCle 436 LED Indicators The bottom or left LED on the front panel is the Cable Present Detect LED This green LED reflects the status of the CPRSNT signal in the PCIe Expansion Cable When the LED is ON it is indicating that the CPRS
22. th 3 meter cable and 1250W Power Supply 4U chassis 600 2709 1 21 S Expansion System with 1 meter cable and 2180W Power Supply 5U chassis 600 2709 3 21 S Expansion System with 3 meter cable and 2180W Power Supply 5U chassis 600 2709 1 32 S Expansion System with 1 meter cable and 3240W Power Supply 5U chassis 600 2709 3 32 S Expansion System with 3 meter cable and 3240W Power Supply 5U chassis PCle2 2709 PCI Express Gen2 Expansion System User s Manual 1 5 Revision 1 1 January 2012 14 CYCLONE Microsystems CHAPTER 2 THEORY OF OPERATION 2 1 THEORY OF OPERATION The basic PCI Express link consists of dual unidirectional differential links implemented as a transmit pair and a receive pair The signaling rate for PCI Express Gen2 is 5 0 Gigabits second L ane direction A link supports at least one lane The PCI Express link from the PCIe 426 over the cable to the PCIe 428 is a sixteen lane x16 link The PCIe 428 provides four x8 slots J7 J8 J11 J12 and twelve x4 slots J1 J2 J3 J4 JS J6 and J13 J14 J15 J16 J17 J18 All slots are populated with connectors that have an open back that will allow plugging a larger add in card into the smaller slot This down shifting of larger cards into smaller slots is not expressly permitted by the PCI Express Specification but will work on the PCIe 428 Plugging a smaller link card into a larger connector is fully allowed Once the PCle 426 is installed
23. x8 connector x8 lanes single J12 x8 connector x8 lanes single J13 x4 connector x4 lanes single J14 x4 connector x4 lanes single 3 1 EXPANSION CHASSIS LU CYCLONE Microsystems Slot Connector Lanes Width J15 x4 connector x4 lanes single J16 x4 connector x4 lanes single J17 x4 connector x4 lanes single J18 x4 connector x4 lanes single On the PCIe 428 the slot connector size matches the slot width back to the switch All sixteen slots use open back connectors that allow users to plug in larger add in cards Slots J9 and J10 use PCIe slot connectors but have proprietary pinouts and are not for general purpose use Slot J10 is for the Upstream Cable Adaptor slot J9 is for the optional System Monitor board Only Cyclone Micro systems Upstream Cable Adaptors and System Monitor boards should be installed in slots J10 and J9 respectively Table 3 1 summarizes the slot capabilities 3 3 CHASSIS COOLING Airflow in the PCIe2 2709 chassis is provided by four 77 CFM fans located midship across the full width of the chassis 3 4 CHASSIS POWER There are three different power supply options available for the PCIe2 2709 The 1250W option provides ample power for the backplane and low powered PCIe devices The 2180W and 3240W options provide N 1 redundancy and are intended for high powered multi GPU applications 3 4 1 1250W Power Supply Option The 4U chassis option is powered by a front mounted 1250W single
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