Technical Reference Manual
Contents
1. Overview This section describes the wire list for the communications block and the power pins of the DC Power Supply Signal Block The block of 24 pins 8 columns 3 rows is between the three 3 DC Power Input Pins Connection and the eight 8 DC Output Power Pins A top row B Comm middle C bottom row Pin Circuit Pin Circuit Pin Circuit Al Ground with A5 and C8 B1 ENAB C1 Return with C2 and C3 A2 5 volts SH B2 12 volts SH C2 Return with C1 and C3 A3 5 volts S B3 Not used C3 Return with C1 and C2 4 5 volts S B4 Not used C4 5 volts with C5 A5 Ground with A1 and C8 B5 Not used C5 5 volts with C4 A6 Not used B6 Power OK 2 C6 12 volts with C7 A7 Not used B7 Power OK 1 C7 12 volts with C6 A8 Not used B8 LCOM C8 Ground with A1 and A5 Power Pins The table shows the power pins of the power supply DC Inputs DC Outputs DC Output Pin Circuit Pin Circuit Pin Circuit 1 DC Nominal 48 Volts 4 DC out 5 volts with 5 8 Not used 2 DC positive 5 DC out 5 volts with 4 9 Not used 3 DC in safety ground 6 DC return 5 volts with 7 10 DC return 12 volts 7 DC return 5 volts with 6 11 DC out 12 volts 34 55xx Series Chassis Technical Reference Manual DC Power Components Figure 23 Power Supply Pins and Communication Block Communication Block Inputs Power Supply Outputs Technical Reference Manual 55xx2. BLU IN K c 49 i i 1 cC ej YY 0 7x ii i t co ER Ind 7x Lig jz ioc Peed a e 1 1 1 1 N c 2 2 1 1 1 1 1 N 0O co c cicicic c I jeje f 1 x ma a 90 3i oni amp o NJ 0 2 51 00 22 5 BLK GND J2 6 J5 3 BLK 2 13 J5 4 GRY 13 3 J5 5 30 GRY 42 55xx Series Chassis Technical Reference Manual Harness and Cables Figure 27 5512PE Passive Backplane Power Harness 1 3 3 Volt Power 2 Power Header 3 Power Header Technical Reference Manual 55xx Series Chassis 43 Harness and Cables 5518SP Split Passive Backplane Power Harness Overview This section describes the power harness for the split passive backplane which support two computer consisting of 5 ISA slots 1 SBC slot and 3 PCI slots each Wire List This table shows the wire list color and connections for the 5518SP Passive Backplane Power Harness Note 3 3 Volts Not available from AC or DC Power Supply WIRE LISTA WIRE LIST B m i2 EN 6 E 13
3. Technical Reference Manual 55xx Series Chassis 71 Technical Data Resolving PCI IRQ Conflicts Overview PCI Overrides IRQ interrupts Assignments Example On board SCSI PCI Video Boards This section describes actions taken by some PCI devices that affect PCI IRQ assignment or add PCI devices to specific PCI Interrupt Lines A PCI Interrupt Line assignment to an IRQ line takes precedence over x86 devices requiring the same IRQ Some x86 devices require a specific IRQ hardwired in the device For example a network board is hardwired to request IRQ 10 If the user or PCI BIOS automatically assigns a PCI Interrupt Line to IRQ 10 the x86 network board cannot send an interrupt to the processor for service The PCI assignment overrides any other assignment and instructs the PCI chip set to ignores ISA board generated interrupt requests for IRQ 10 Effectively the network board is voiceless In addition if no PCI device sends an interrupt through that PCI interrupt line the IRQ is wasted Some devices like VGA video boards do not need to interrupt the processor to request service Texas Micro Inc single board computer which have on board SCSI chips take PCI INTA for SCSI interrupt PCI VGA video boards do not require an IRQ 72 55xx Series Chassis Technical Reference Manual Technical Data Exceptions Overview This section describes the know problems and unique
4. Message Description OVER TEMP 1 The chassis ambient temperature exceeds a level set by CPU 0 FAN ERR 1 Cooling fan 0 has failed and sent an error message to the Alarm ay 1 FAN ERR 1 rae of the two fans in the assembly has failed and the other fan spins up to move the same amount of air The error condition does still exist with this automatic response Or Both fans may have failed in the dual fan assembly In this case the air cooling the chassis has been reduced by 30 CPU 1 PWR ERR 1 The Alarm Board received an error message from the power supply 1 the upper supply The secondary power output has exceeded the voltage amperage tolerances for the supply CPU 2 PWR ERR 1 The Alarm Board received an error message from the power supply 2 the lower supply The secondary power output has exceeded the voltage amperage tolerances for the supply XPRESS ERROR BIOS Error The Intel Xtended Xpress sends an error code message to the Message Alarm Board The Alarm Board forwards the message in this form For Xtended Xpress systems see the SP5500 user s manual for the Intel error codes SYSTEM NORMAL The system is operating with no error conditions Technical Reference Manual 55xx Series Chassis 57 Alarm Board Module Printed Alarm Messages Overview This section lists the printed Alarm Board Messages Messages Generated for print by the Alarm Board Message Descrip
5. lt pr sd ara Mf ooo fe fa lt it fe BLACK 5 2 24 55xx Series Chassis Technical Reference Manual Power Components Figure 18 SCA and Media Cage Power Cables e J8 J11 J10 e J12 cy 1 J3 Powers the SCA Cage 2 J7 Powers the Drives 3 SCA Power Cable and pinout diagram the Media Cage and pinout Media Cage Drives power diagram Cable Technical Reference Manual 55xx Series Chassis 25 Power Components Signals to the Front Panel Display Overview J11 34 Pins J9 96 Pins and J11 40 Pins This section shows the signal connection between J8 J9 and J11 The table shows the pinout of the signals form the 15 Xtended Xpress Baseboard connector Display These signals are routed in J11 to the DC Power Distribution Backplane and into the 96 pin J9 connector to the Alarm Board The 34 pin Display signals are routed with Alarm Board sensed signals through the 40 pin cable in J8 In passive backplane units the signals generated by the Alarm Board are the only signals sent to the Front Panel Display through J8 J11 is not used The table shows Display signals J11 SPKDAT Function speaker data 5V SV after on off switch is asserted on ON OFF OC supply on high TTL level 5VSTNDBY 5V provided by supply when supply is connected to AC outlet FP RESET Low le
6. Processor 5 CPU o 0 0 O DIPCI IRQ a amp a C POI oN POI 27 E A Chip rr MM 07 Set Bi Al CULA Dil Al C1 B DH AB B C LIB Cr DI a D aes l A C ie PCI Bus D 1 The PCI Interrupt Lines as Received 2 PCI Interrupts as Issued by the PCI by the PCI chip set According to the Device According to the PCI 2 1 PICMG Specification Interrupt Line Specification Rotation Scheme Technical Reference Manual 55xx Series Chassis 69 Technical Data PCI Interrupt Access to the CPU Overview Simultaneous Interrupts One IRQ Interrupt Issued Caution Fast Devices Can Monopolize PCI Interrupt Lines This section discusses the interrupt path to the CPU and describes how the PCI chip set translates interrupt signals Two PCI devices send the PCI chip set a interrupt request at the same time on the same interrupt line INTB The PCI specification states that simultaneous interrupts are allowed More than one PCI device can generate an electrical impulse an interrupt on INTB When the PCI chip set senses the INTB interrupt request the PCI chip set will generate an interrupt request on the ISA IRQ line mapped to INTB The interrupt goes to the PCI chip set to the CPU The CPU may or may not halt what it is doing to serve the interrupt The CPU calls the interrupt driver to server the request When the device driver has
7. TEXAS MICRO 24926A April 1998 Texas Micro Inc All Rights Reserved Printed in USA Technical Reference Manual 55xx Series Chassis About This Manual This technical reference manual provides detailed information about these Texas Micro Inc products SP5500 Xtended Xpress Server Platform 55xx Passive Backplane Chassis 55xx 48 Volt Passive Backplane Chassis 55xxSP Split Passive Backplane Chassis Topics covered include Disassembling the computer Identifying the modules components and cabling Cable and Header pinouts 48 volt chassis components Split passive backplane chassis components Alarm Board jumpers messages and functions Technical topics specific to Texas Micro Inc components IRQ PCI interrupt assignment and operation Texas Micro Inc SCSI components Hot swapping requirements 55xx Series Chassis Technical Reference Manual Document Conventions Typography Title Case Titles of menus windows tabs lists and groups Monospace Type Bold Title Case Names of menu items fields buttons icons check boxes list items group items and keystrokes UPPER CASE Acronyms and abbreviations Italics Emphasis Sans Serif Type Items in tables illustrations and notations Output from a printer or monitor Graphic items will be displayed as an image Symbols Caution indicates an item for special consideration Warning indicates a hazard that
8. Figure 15 Power and Signal Connectors 10 Preproduction primary input Ground 2 ES f 5 4 bs J11 Ground 1 J6 powers the passive backplane baseboard connects to PS5 on Xtended Xpress amp 4 J8 40 pin Connector transmits signals from the Alarm Board to the Front Panel Display and Powers Baseboard the Display and Cooling 2 J5 powers the Passive Fan Modules Backplane Baseboard 5 J11 34 Pin Connector on connects to PS3 and PS4 on Xtended Xpress amp the Alarm Board receives signals from the Display J3 to chassis 9 gt 2 9 D J10 J12 dio 6 7 410 10 Pin Connector for SCA Hard Drive Activity LEDs 8 J3 powers the SCA Cage 9 Grounding Screw for the Power Supply Housings 10 J4 for Pre Production Models Baseboard header on the 15 Xtended 11 J4 primary power entry 8 J7 powers Media Cage Xpress Baseboard for power supplies drives 6 J12 Reset Button Wires SP5500 Only 20 55xx Series Chassis Technical Reference Manual Power Components Rear of the DC Power Distribution Backplane Overview This section describes the connections on the rear power supply side of the DC Power Distribution Backplane Figure 16 Rear of DC Power Distribution Backplane C32 A32 1 Cut out for the J11 34 Pin Connector Power and Signa
9. E z al lO aq Signal Connection on the DC Power Distribution Backplane AKAKARKRAARARAARARAARAARRARARARAARAAABARATA K C14 C30 7 C15 C31 L EOK2 C16 C32 x Technical Reference Manual 55xx Series Chassis 27 Power Components Power to the Baseboard Passive Backplane Overview This section shows the power connections on the DC Power Distribution Backplane for the baseboard or passive backplane Figure 20 Baseboard Passive Backplane Power J6 and J5 Q f Cg 200 fs INIT G 10 18 J6 1 J6 power for the baseboard or 3 Cables route through the pass passive backplane through 2 J5 power for the baseboard or passive backplane 28 55xx Series Chassis Technical Reference Manual DC Power Components This chapter describes the DC Power Supplies the DC Power Entry Assembly and the power wiring The SP5500 is AC only The 55xx is available in 48 volt versions Similar DC and AC The DC and AC power supplies have very similar exteriors Supply Exteriors The AC and DC Power Supplies have the same outer constructions The 55xx 48 will not operate with an AC power supply The 55xx will not operat with 48 VDC Power Supplies Damage to the equipment may occur by installing the wrong power supply s in the chassis Technical Reference Manual 55xx Series Chassis 29 DC Power C
10. Technical Reference Manual 55xx Series Chassis Technical Data Hot Swapping Requirements Overview Hot Swapping Requirements SCSI and RAID Hard Drive Support This section describes the requirements for hot swapping in a RAID array for the 55xx or SP5500 RAID Plus Operating System Support Equal Hot Swapping For SP5500 and 55xx hot swapping SCA hard drives requires the following e The operating system and or RAID controller must recognize that a new drive has been installed formatted or un formatted Note The operating system interacts with the RAID array through the controller and considers the array to be a single volume For example the operating system instructions the RAID array to save to volume 24 The hard drive holding volume 24 has been replaced with an un formatted hard drive The operating system and RAID controller must handle the absence of volume 24 without having a fatal error to the system Many RAID controller allow hot swapping Some do not Before purchasing a RAID controller for the SP5500 55xx or 55xx 48 or 55xxSP ensure that the controller supports hot swaps e The operating system must accept this new configuration without an error e The operating system to must allow the RAID controller to format and operate the new SCA hard drive These notes describe the support available in the SCSI devices for the SCSI or RAID controller functions The indi
11. EE 16 186 19 120 44 55 Technical Reference Manual Harness and Cables Figure 28 5518SP Passive Backplane Power Harness Lodi S Pin1 10 mm 1305 Pint 1 J6 on the DC Power 6 Two gray wires E4 3 3 11 Two red wires E8 3 3 Distribution Backplane volt for PC 2 not volt power for PC 1 not 2 J5 on the DC Power available from Ac or DC available from AC or Distribution Backplane power supplies DC power supplies 3 Black wire E1 ground 7 connector for PC 2 8 12 J1 18 pin power for PC 2 J3 connector for PC 1 connector from the DC 4 Red wire E2 5 volt for 8 Black wire E5 ground Power Distribution PC2 for PC 1 Backplane 5 Two black wires E3 9 Red wire E6 5 volt J2 24 pin power connector ground for PC 2 power connector for PC from the DC Power 1 Distribution Backplane 10 Two black wires E7 ground for PC 1 Technical Reference Manual 55xx Series Chassis 45 Harness and Cables 5518P Passive Backplane Power Harness Overview This section shows the connections and signals of the power harness for the 11 ISA slot 1 SBC slot and 6 PC
12. J4 Pinout The table shows the pinout for the power connector to the DC Power Distribution Backplane DC does not mean that the power coming into the supplies is necessarily DC Description Description 1 AC Line 1 Brown 4 Not used 2 Ground Green 5 Not used 3 AC Line 2 Blue 6 Not used Fuse Ratings The table shows the rating and other information about the fuses used in the chassis Region Amperes Type Suggested Fuse part Fuse carrier Volts manufacturer number part number North America 12A 250V SB Littlefuse 326 012 Schurter FEK031 1666 International 6 3A 250V T Schurter 001 2512 Schurter FEK031 1663 18 55xx Series Chassis Technical Reference Manual Power Components Figure 14 1 Chassis Grounding Wire Screw Connection 2 Fuse Fuse Housing Inside the Chassis 3 AC Power Entry Housing 4 AC Switch Housing AC Power Entry Harness 5 Green Wire AC Model 6 Brown Wire AC Model 7 Power Entry Harness 9 Blue Wire AC Model 10 J4 Connector on the DC Power Distribution Connector to J4 Backplane MN 8 Grounding Wire Connector 11 DC Power Distribution Green Backplane Technical Reference Manual 55xx Series Chassis 19 Power Components Connectors on the DC Power Distribution Backplane Overview This section describes the connectors on the DC Power Distribution Backplane
13. C 32 to 113 F Non Operating 40 to 70 C 40 to 158 F Humidity Operating 10 to 85 Non Condensing 45 C Non Operating 0 to 95 Non Condensing 55 C Shock Operating 10G max 11ms duration Non Operating 40G 11ms duration Vibration Operating 0 05G max 53 500 Hz Non Operating 1 5G 53 500 Hz Altitude Operating 0 to 10 000 ft 3048 meters Non Operating 0 to 50 000 ft 15 240 meters Acoustics 48 dB peripherals idle 1m Static Discharge Per EN50082 1 80 55xx Series Chassis Technical Reference Manual
14. Cage and remove SCA SCSI 2 Hard Drives Figure 5 SCA Cage Remove Cables and Remove the Cage from the Chassis v S Ye S K3 Sd SS Ew SS S PIS ISS S E S 1 Fast and Wide SCSI Cable 4 SCA Hard Drive Activity 7 Sled Guides 68 pin Cable for the Six Amber 8 10 Pin Hard Drive Activity 2 Power Cable J3 e s the Front Panel LED Cable 8 DC Power Distribution 8 Metal Sleds for SCA Fast Backplane 5 SCA Cage Metal Frame Wide SCSI Hard Drives 6 SCSI Backplane Visible 10 SCA Mounti Through Oval Vent Holes 0 ouating 6 55xx Series Chassis Technical Reference Manual Front Access Components SCA Cage Disassembly Overview In this section disassemble the SCA Cage components Figure 6 Disassemble the SCA Cage Remove the SCSI Backplane Disassemble Sleds 2 on a a n n i RE D 500 00000 s oooooconl 1 SCA Cage Power 3 Fast Wide SCSI 5 Screw Connector 16 pin Connector 68 Pin 6 Washer 2 Rear View of SCSI 4 SCA Hard Drive Activity 7 1 ith SCA Backplane SCA Slots Connector for the Six ee aN Se on the Other Side Amber LEDs on the Front Panel 10 pins 8 Flat head Screws Technical Reference Manual 55xx Series Chassis Front Access Components Media Cage Overview In this sec
15. Series Chassis 35 DC Power Components DC Breakers Overview This section describers the two circuit breakers on the DC Power Entry Assembly Figure 24 Controls IN1 and CB2 Controls IN2 1 Circuit Breaker 1 2 Power Input 1 controlled by Circuit Breaker 1 3 Circuit Breaker 2 4 Power Input 2 controller by Circuit Breaker 2 5 Grounding Studs Always switch OFF 0 both breakers CB1 and CB2 before e Opening the top cover to work on the components in the chassis Working inside the chassis on the components in the DC Power Entry rea e Working around the DC Power Distribution Backplane DC power enters the system through IN1 and IN2 and is combined in the DC Power Entry Assembly for the J4 connector The system can still be powered if both IN1 and IN2 are connected and only one breaker is OFF 0 36 55xx Series Chassis Technical Reference Manual Harness and Cables This chapter shows the power harness which connects the DC power backplane to the passive backplane or baseboard for the chassis The harnesses describes are for these chassises SP5500 5520P 5512PE 5518P 5518SP Technical Reference Manual 55xx Series Chassis 37 Harness and Cables SP5500 Baseboard Power Harness This section describes the SP5500 baseboard power harness Overview The tables below show the color signal and connection points of the wires in the SP5500 baseboar
16. Technical Support Representative place it along with the product serial number on the packaging materials and correspondence The factory will be unable to accept delivery without these numbers Note The factory does not accept RGA s sent freight collect Step Action 1 24 hours a day 7 days a week dial 713 541 8250 add long distance international access codes 2 Set your modem communications equipment to Protocol ANSI Data Bits 8 Parity None Stop Bits 1 Note Refer to your modem and communication software documentation for configuration and operation instructions 3 When you connect follow the online instructions to download software Step Action 1 24 hours a day 7 days a week dial 713 541 8200 or 800 627 8700 add long distance international access codes Note You can use this service only with a touch tone telephone 2 Upon answer press 190 for the InfoLine fax service 3 Follow the instructions to request documents Upon receiving your equipment inspect the packaging shipping materials and contents If damaged return the equipment to Texas Micro Inc in the original packaging and shipping materials If you are satisfied with your equipment retain the packaging and shipping materials in case of future need 55xx Series Chassis Technical Reference Manual Table of Contents Chapter 1 Front Access Components 1 Front Access Modules and Compone
17. alarm board to sense power status from both upper and lower power supply bays Jumper Block 1 JP4 Not used Jumper Block 1 JP3 Jumper both pins to configure the Alarm Board to send alarm signals to the full array of LEDs If this jumper is not installed over both pins the Alarm Board will not send the correct format of signals to the front panel display To instruct the Alarm Board to send alarm messages alarm corrected messages and System Normal messages to the LCD on the front panel jumper both pins of JP3 Switch Bank 2 Testing ports for alarm failures 62 55xx Series Chassis Technical Reference Manual Alarm Board Module Figure 38 Jumper Block and Switch on the Alarm Board 1 PWR SUP n N3d0 1 Jumper Block 2 Switch Block Do Not Change Settings Technical Reference Manual 55xx Series Chassis 63 Alarm Board Module Alarm Board Operating Characteristics Overview This section discusses the Alarm Board characteristics what the board can and cannot do Alarm Board The serial channel is external to the chassis only Any connection to the host processor and message in the chassis must be accomplished by separate wiring The Alarm Board does not system connect to the host computer except for snooping the Intel Xtended Xpress boards characteristi
18. are rotated on PCI Bus 0 for passive backplane designs like Texas Micro Inc SBCs Note PICMG is a group of SBC manufacturers that have gotten together to define how PCI interrupts are rotated on passive backplanes to allow for interoperabiltiy between different manufacturers e The PCI specifications does not define how PCI interrupts are rotated on PCI Bus 0 but does specific how the PCI interrupts are rotated behind a PCI PCI bridge chip Texas Micro Inc produces passive backplanes that are compliant with the PICMG and PCI specifications By PCI specification a PCI device that only needs on interrupt uses PCI INTA If the device requires a second interrupt for service the interrupt uses PCI INTB More concurrent interrupts from the device use PCI INTC then PCI INTD If all the PCI devices issue interrupts at once PCI INTA line is constantly occupied To increase throughput Texas Micro Inc rotates the hardwired traces as described below Interrupt rotation e PCI INTA is connected to the Adaptec SCSI controller on SBCs which have an on board SCSI controller Note This is a Texas Micro Inc convention On the first PCI slot the PCI interrupts are wired as B C D A Onthe second PCI slot the PCI interrupts are wired as C D A B Onthe third PCI slot before the PCI PCI bridge chip the PCI interrupts are wired as D A B C As far as the add in PCI device is concerned the PCI interrupt signals are INTA B C and D
19. conditions present themselves The serial message is not repeated The messages are panel simple ASCII text messages with no protocol The messages are sent out at 19 2K Baud no parity 8 bits 1 stop bit The connector pinout is similar to a standard PC 9 pin serial with the addition of the relay contacts Figure 36 Alarm Board Rear Panel Pin 5 IT Serial 9 pin port on the rear panel of the Alarm Board Pin Description 1 Alarm Relay Normally Open 2 Receive data from Remote RS 232 3 Transmit data to Remote RS 232 Pin 1 A N C Ground Alarm Relay Normally Closed N C Alarm Relay Common Oo a N C 60 55xx Series Chassis Technical Reference Manual Alarm Board Module J9 96 Pin Connector Overview This section describes the 96 pin connector on the rear of the DC Power Distribution Backplane which connects to the Alarm Board Module Power The table and illustration below shows the connector and pinout for the interface Distribution between the Alarm Board and the chassis Power Distribution Board power supply Connector side Connector J11 passes though the Power Distribution Backplane to bring signals and error messages from the Front Panel header on the 15 Xtended Xpress Baseboard For passive backplane units this connector is not used and CPU error codes cannot reach the Alarm Bo
20. even though the actual wire trace to the PCI chip set may be C D A and B The PICMG specification resolves interrupt overcrowding If all PCI add in devices issued interrupts as described in the PCI specification INTA and INTB will be crowded with interrupt requests and INTC and INTD rarely get used According to the PICMG PCIInterrupt Rotation Specification passive backplane manufacturers lay out the PCI Interrupt traces to the PCI slots in a rotating pattern All four interrupt lines are used more evenly An interrupt s wait at the PCI chip set for ISA IRQ service is shorter Several PCI devices can request on the same PCI line but only one interrupt from that PCI line at a time can to the CPU for service 68 55xx Series Chassis Technical Reference Manual Technical Data Bridge Chips If there are PCI bridge chips on the backplane the passive backplane must comply with Figure 39 the PCI and PICMG specifications for a Texas Micro Inc SBC to operate properly with the PCI boards installed behind the PCI PCI bridge s Note If the add in PCI board is not specified as PCI 2 1 compliant it may not function behind a PCI PCI bridge chip PCI Interrupt Rotation Note Diagram represents the BPCI 13 Passive Backplane Note Interrupts at the Slots are used by the PCI devices from top to bottom
21. serviced the PCI device the driver instructs the device to release the PCI interrupt When the first PCI device releases the PCI INTB the PCI chip set issues another ISA IRQ for second PCI device which requires service if one is pending The danger of putting several devices on the same A C B or D PCI interrupt is that a significantly faster device whose device driver loads after a slower device will be served while the slower device according to the loading position of its drivers will not be served If moving one of the PCI boards does not resolve the problem determine the order that the drivers are loaded The problem may be in the PCI device driver or in the loading procedure used by the operating system 70 55xx Series Chassis Technical Reference Manual Technical Data Figure 40 Central Processing Area PCI chip set and Related Components Single Board Computer or Central Processing Area Central Small chip set m Processing Junction to CPU 4 Chip Set L Video Data PC IRQ paths On Board to from CPU PCI SCSI Controller PCI Video Takes INTA Adapter On BOHISIBS gor Y Board or Separate PCI Chip Set aa Chip Interrupt On Board Board Interpreter m PCI Gateway Ethernet Controller ISA Bus to PCI Bus to Backplane Backplane Baseboard Baseboard
22. the 16 ISA slot 1 CPU slot and 3 PCI slot Passive Backplane Wire List The table shows the color signal and connections for the 16 1 3 Passive Backplane Power Harness IR NU REF DES J1 7 COLOR SIGNAL 7 m lt m m J2 5 ve REO RED RED RED 1 N m o m 1 UJ m 1 14 co nd 7x c T 70 00 rr ili m 70 lt GRY mnla 70 79 141 4 40 55 Technical Reference Manual Harness and Cables Figure 26 5520P Passive Backplane Power Harness HitUttlt 1 5520P Passive Backplane 4 External Power Source 6 3 3 Volts Not available Power Harness Connector 12pins from AC or DC Power 2 Ground 5 12 Volts Supply 3 5 Volts 7 16 1 3 ISA PCI Passive Technical Reference Manual 55xx Series Chassis 41 Harness and Cables 5512PE Passive Backplane Power Harness Overview Wire List This section describes the power harness for the 8 ISA EISA slot 1 SBC slot and 3 PCI slot Passive Backplane The table shows the color signal and connections for the wires in the power harness Note 3 3 Volts Not available from AC or DC Power Supply WIRE LIST Tx no oes ogs SIGNAL ja Eb pe pn
23. Board 2 The Alarm Board displays the error message on the Front Panel Display The display can cycle between error messages for multiple error conditions 3 The Alarm Board sends a serial message for each error detected once out through the serial port 4 The Alarm board sounds an audible alarm when any error occurs and continues to sound the alarm until all error conditions are corrected Note There is no provision for silencing the audible alarm except by correcting the error condition The Alarm board sends a clear message when an error is cleared The Alarm Board sends and displays a SYSTEM NORMAL message when going from one or more errors to a state of no errors The Alarm Board does poll any other components The Alarm Boards receives a good bad signal from the monitored modules and sends that signal once out the serial port on the Alarm Board rear panel These are the errors messages generated by the Alarm Board in response to the bad message of over temperature or a failing module e Over temperature error CPU fan error e CPU power error BIOS detected error Intel Xtended Xpress Baseboard only 56 55xx Series Chassis Technical Reference Manual Alarm Board Module Front Panel Displayed Alarm Messages Overview The following are messages sent by the Alarm Board to the front panel display the vacuum fluorescent character display Messages Displayed by the Alarm Board
24. I slots passive backplane Figure 29 5518P Passive Backplane Power Harness i YOURE CD fis Nr Lj Ere aa ee GENES DER Ea Oo a Da eee eet ites ge rc ani pam i Preah L 1 Ground External Power Connector 5 3 3 Volts not available 2 5 Volts 4 12 Volts with AC or DC power supplies E 46 55xx Series Chassis Technical Reference Manual 55xxSP Components This chapter shows the cables blank panels and drive cages for the two drive options available for the split passive backplane chassis 55xxSP A dual computer chassis a 55xxSP contains two separate computers Though the two computers receive power and cooling from the same subsystems the processors add in boards and media devices are not shared Topics covered are these The Two Media Cage Model The SCA Cage and Media Cage Model e Power Cabling for both models e Keyboard and Reset Button adaptations for a split backplane e Adapter Plates and Unique Cables Technical Reference Manual 55xx Series Chassis 47 55xxSP Components Power Cables for Two Media Cages Overview This section shows the power cables for the Two Media Cage Figure 30 55xxSP Power Cable Routing 1 J3 16 pin not 14 pin Media Cage 3 Media Cages same metal frame Power Cable 4 Adapter Plate with keyboard 2 J7 14 pin Media Cage Power Cable Connect
25. InfOFTTiQtlOi 30 DC Pow t Entry Harness iss 32 DC Power Supply PINOUIS cene e t eee eL o 34 DG Breakers M 36 Chapter 5 Harness and Cables 37 SP5500 Baseboard Power Harness sse 38 5520P Passive Backplane Power Harness 40 5512PE Passive Backplane Power 42 5518SP Split Passive Backplane Power 44 5518P Passive Backplane Power Harness 46 Technical Reference Manual 55xx Series Chassis iv Table of Contents Chapter 6 55xxSP Components 47 Power Cables for Two Media Cages 48 Keyboards and Resets for Two Media Cages 49 Media Cage Adapter and Combined Cable 50 Siete ui 071 E A 51 Keyboards and Rests for the SCA and Media Cages 53 Chapter 7 Alarm Board Module 55 Alarm Board Features a a eed 56 Front Panel Displayed Alarm Messages 57 Prin
26. ard Figure 37 Pinout and Illustration of the Alarm Board Connection Jill DBL 2 i DB3 3 DBS 4 5 R W 6 FIT 7 AI 8 UX1 O 9 33C 33 1C X L OK1 POK2 Technical Reference Manual 55xx Series Chassis 61 Alarm Board Module Jumpers on the Alarm board Overview Setting Jumpers on the Alarm Board JP6 Do Not Change Disarming No Power in Bottom Bay JP4 Display or No Display Factory Feature Test This section describes the features enabled or disabled by setting jumpers on the board The jumpers on the Alarm Board enable disable sensing and display functions The default setting enables the sensing or display The default setting is with the jumper removed These are the functions controlled by the jumpers The Alarm Board was originally designed to interface with the Intel Xtended Xpress Baseboard Leave the jumper installed over both pins to disable the alarm for an open door on the Intel chassis This door does not exist on the Texas Micro chassis Leave the jumper installed to disable the alarm anyway Jumper Block 1 JP5 Jumper both pins to instruct the Alarm Board to ignore that the no power signal coming from the bottom power supply Jumper both pins when one power supply is used and install that supply in the support power bay Ensure that both pins are NOT jumpered to allow the
27. aspects of BIOS and SBC Exception to In the Phoenix PCI BIOS when the user enables the PS 2 mouse IRQ12 default and the PCI IDE hard drive IRQ14 default and possibly IRQ15 These also apply The BIOS assigns these interrupts before assigning PCI interrupts to IRQ interrupts e An asterisk reminds the user not to choose that selected IRQ for a PCI interrupt The asterisk appears on P5000HX and PV5000HX with BIOS 4 05A e Using the P5000HX and the PV5000HX SBCs if the user selects IRQ12 or IRQ14 for a PCI interrupt line say B the BIOS appears to accept the user s selection but the BIOS will ignore PCI interrupt requests from line B The devices on PCI interrupt Line B will not be served by the processor unless the operating system processor polls them for help requests not likely PS 2 Mouse To avoid blocking out x86 devices with PCI assignments find the required IRQs of the IRQ12 amp IDE x86 devices before setting the PCI assignments Some Texas Micro Inc single board Hard Drive computers use specific IRQs to perform tasks IRQ12 is for the PS 2 mouse port Most IRQ14 Texas Micro Inc SBCs require IRQ14 for the IDE hard drive If the SBC supports a second IDE controller on board IRQ 15 is taken for that second controller Technical Reference Manual 55xx Series Chassis 73 Technical Data Automatic Manual PCI IRQ Assignment Overview Automatic Manual Access to PCI Th
28. can cause personal injury and or damage to the equipment High Voltage indicates the presence of a high electrical current that can cause serious personal injury and or damage to the equipment gt ESD indicates sensitive electronic parts that can be damaged by electrostatic discharge ESD Technical Reference Manual 55xx Series Chassis Calling Technical Support Returning Products for Service Accessing the BBS Using the InfoLine Fax Service Customer Support Step Action 1 Have the Texas Micro product model and serial number available 2 e n the Continental USA Monday Friday 7 00 a m 6 00 p m Central Time dial 1 800 627 8700 in the USA Outside the USA dial 713 541 8200 add long distance international access codes n Europe Monday through Friday between 8 00 a m and 6 00 p m dial 31 36 5365595 3 Upon answer press for Technical Support Step Action 1 Have the Texas Micro product model and serial number available 2 e n the Continental USA Monday Friday 7 00 a m 6 00 p m Central Time dial 1 800 627 8700 inside the USA Outside the USA dial 713 541 8200 add long distance international access codes n Europe Monday through Friday between 8 00 a m and 6 00 p m dial 31 36 5365595 3 Upon answer press for Technical Support 4 When you are assigned a Returned Goods Authorization RGA number from a
29. cs LCD display These are characteristics of the Alarm Board and alarm message system The Alarm Board cannot reset the CPU e An operator at a remote site cannot reset the CPU through the Alarm Board The front panel display is not accessible to the user in any way The message displayed on the front panel LCD cannot be changed from the messages stated earlier in this chapter e Ifan audible alarm is connected to the Alarm Board relays that alarm will sound until all error conditions are cleared The Alarm Board does not have a feature to silence the audible alarm before all error conditions are cleared m 64 55xx Series Chassis Technical Reference Manual Technical Topics This chapter discusses these topics PCI IRQ Relations PCI Rotation PCI Access to the CPU Resolving PCI IRQ Conflicts BIOS Auto Manual PCI IRQ Assignment SCSI Strategies Hot Swaps RAID and SCA Technical Reference Manual 55xx Series Chassis 65 Technical Data PCI IRQ Interaction Overview PCI Chip Set PCI Interrupts The PCI bus provides four interrupt lines for add in devices to use The PCI interrupt signals pass through a translation device to the IBM PC compatible part of the computer This document refers to the translation device as a PCI chip set Texas Micro improves interrupt access to the processor by rotating the PCI interrupt line traces on a slot by slot basis to the single board computer SBC This s
30. ction 61 Jumper Block and Switch on the Alarm Board sse 63 PCI Interrupt aaa 69 Central Processing Area PCI chip set and Related Components 71 Technical Reference Manual 55xx Series Chassis vi List of Figures Al SCSI ID OR CO 77 42 Drive SCSI ID Jumpers Preset SCSI ID on the SCA 0 77 vii 55xx Series Chassis Technical Reference Manual Front Access Components This chapter shows removing the components and modules accessible from the front of the chassis The illustrations identify modules and components Visual instructions such as arrows and dotted lines are provided The topics covered are these Remove the Front Bezel Disassemble the Front Bezel Remove the Cooling Fan Modules Remove and disassemble the SCA Cage Remove and disassemble the Media Cage Remove the DC Power Distribution Backplane Before Working For your safety and the longevity of the electronic components in the chassis on the Unit please observe the following warning and caution before working on the unit Only qualified experienced electronics personnel should access the interior of the chassis and handle the equipment To avoid damage or injury always power off the system and disconnect all power cords from their power source before handli
31. d power harness Wire Lists aux GROUND 2 BLACK GROUND Nlo Raley H J oof t g 5555 oS ouleulos Blo mE uw PT POET PINS TS SS ele a em ee a a a a ed ed ed ee 53 3 3 3 3 3 5 3 3 3 3 5 8 NO feel 2 ENB lo BE BEES le IRE NO e E e bed ed od bra Y 191 ws pig a a i ow We i a co nn nin e 8 e c ic n eR cd c E eu ERR E RE ER c dc Jeja amp SSS 55555555 S55 23 2 8 3 53 3 3 3 WIRE LIST Technical Reference Manual 55xx Series Chassis 38 Harness and Cables Figure 25 SP5500 Baseboard Power Harness Enlarged View of the Xtended Xpress Baseboard Power Connections 1 PS3 Power Connection 4 PS5 Power Connection 6 Cable J6 connecting to from Cable J5 from Cable J6 PS5 2 PS4 Power Connection 5 PS2 lowest in view 7 Cable J5 Connecting to from Cable J5 J5 Power Cable runs PS1 2 3 and 4 3 PS1 Power Connection into the pass through from Cable J5 to the DC Power Distribution Backplane Technical Reference Manual 55xx Series Chassis 39 Harness and Cables 5520P Passive Backplane Power Harness Overview This section shows the wire list power harness and power connections for
32. ection and those following also discuss details of the interrupt process to improve troubleshooting All IBM PC comparable computers with a PCI bus have a PCI chip set that translates the PCI interrupts into IRQs interrupt requests to the processor chip How the PCI chip set function is not defined by the PCI 2 1 specification The PCI bus is a processor independent interface As such the PCI specification allows the developer of the computer system to best determine how to handle PCI interrupts The PCI interrupts and PC IRQ lines are not directly electrically compatable The PCI chip set transmits the PCI interrupts into ISA IRQs The CMOS setup controls the PCI interrupt to ISA IRQ translation mapping Note The Texas Micro Inc PCI chip set follows the PCI SIG and PICMG specifications for PCI interrupt rotation The following are characteristics of the PCI Interrupt Lines There are four PCI Interrupt Lines INTA INTB INTC and INTD Note On Texas Micro products the PCI interrupts are called either INTA D or Line 1 4 INTA Line 1 INTB Line 2 INTC Line 3 and INTD Line 4 e Each PCI device can possibly use up to all 4 PCI interrupts Most PCI devices will only use one interrupt e PCI Interrupt Lines are sharable Several PCI devices can signal for service on the same interrupt line at the same time Note The PCI specification states that PCI interrupts are sharable e Any PCI device can initiate an interrup
33. inary bits The binary bits add as shown in the illustration on the following page Fast Wide SCSI devices can have an ID of 0 to 15 If two drives have the same binary sum ID an error will occur Later when a drive is installed with the same combined binary ID an error will occur Set the hard drive jumpers to zero 0 to avoid conflicts The user can manually set the ID of the SCSI controller to a number other than the automatically assigned 7 Use the Adaptec 9 setup utility to change this value 76 55xx Series Chassis Technical Reference Manual Technical Data Figure 41 Figure 42 SCSI ID OR ed Note Binary Addition registers false ID number in the controller as shown below Hardwired binary bit Binary bit set by hard Resulting bit setting on the SCA slot drive jumper seen by controller ON ON ON ON OFF ON OFF ON ON OFF OFF OFF Hard Drive SCSI ID Jumpers Preset SCSI ID on the SCA Slot Hard Drive SCSI ID Jumpers Tee Hardwired to Hardwired to SCSI ID 5 SCSI ID O b Bit OR ed 042 1 ID 3 jumper setting ID Hardwired on SCSI Backplane For Slot 5 4 0 1 10 5 Backplane hardwire setting 421 Jol 4 2 1 10 7 Combined SCSI ID registered by controller 77
34. ion Controlling SCSI ID This section describes the SCA Cage The following describe the SCA Cage and SCSI termination e Single Connector Architecture SCA 80 pin connector is used in the SCA Cage to route all data control signals and power to a Fast Wide SCSI 2 hard drive Single connector architecture is a connector style used for hot pluggable drives A 68 pin Fast Wide connector on the back of the SCA backplane connects the SCA Cage to the SCSI controller The SCA Cage backplane has an on board active as opposed to a passive termination The SCA Cage is terminated even if no hard SCSI SCA hard drives are install e Do not set the terminator jumper on SCSI SCA hard drives to ON The SCA Cage provides termination The following describe the SCSI ID system in the SCA Cage Do not set the SCSI ID jumpers on SCA hard drives to anything other than zero 0 The SCA backplane into has a hardwired SCSI ID preset for each slot e In the SCA Cage the left slot is SCSI ID 0 The slot on the right is SCSI ID 5 CAUTION Always remove the three SCSI ID jumpers from the SCA SCSI hard drive With SCSI jumpers removed the hard drive is set ID zero 0 The SCA slot determines the SCSI ID of the hard drive If the user sets anything other than zero 0 on the three SCSI ID jumpers on the hard drive an error may occur The SCSI or RAID controller registers the binary sum of slot binary bits and the hard drive b
35. is sections shows the Texas Micro Inc single board computers affected by automatic or manual PCI IRQ assignment in BIOS PCI device availability on Texas Micro Inc passive Backplane is also displayed in a table These ar the single board computer with automatic manual or manual interrupt links Texas Micro Inc Single Board Computers PCI ISA IRQ Assignment in BIOS Automatic as Default Selectable as Manual Manual as Default Auto as Selectable Manual Assignment P575 P590 P5120 P5000HX WMB P2000FX PF5000HX M PF5000HX2 M P6000FX P5000HX PE5000HX PV5000HX PV5000HX M The tables describes access to PCI and ISA devices with different passive backplane ISA Devices To Install or On ISA ISA PCI EISA PCI 15 Board Features Passive Passive Passive XXpress Backplane Backplane Backplane Baseboard Third party PCI No Yes Yes Yes Boards On Board Texas Yes Yes Yes Intel Micro SBC PCI Devices on Devices Baseboard ISA Third Party Yes Yes Yes Yes Boards ISA RAID Controller Yes Yes Yes Yes Board PCI RAID Controller No Yes Yes Yes Board 74 55xx Series Chassis Technical Reference Manual Technical Data SCSI Information Overview This section describes the SCSI systems in the SP5500 and 55xx SCSI The following are characteristics of the SCSI devices chains and buses Miam The SCSI bus must be terminated at both ends of the chai
36. l Connector for the on the Alarm Board power supply in the lower bay 2 96 pin Connector Collects Status 4 Power and signal connector for the Signals from Power Supplies through power supply in the upper bay the DC Power Distribution Backplane and the Cooling Fans through J8 The Alarm Board Transmits Alarm Messages to the Display Through J8 by the DC Power Distribution Backplane Technical Reference Manual 55xx Series Chassis 21 Power Components Power Sharing and Power Signal Connectors Overview This section describes the pinout of the Power Supply connections Communica The table shows the pinout of the Communication Block tion Block Pinout A top row B Comm middle row C bottom row Pin Circuit Pin Circuit Pin Circuit 1 Ground with A5 1 ENAB 1 Return with C2 and C8 and C3 2 5 volts SH 2 12 volts SH 2 Return with C1 and C3 3 5 volts S 3 Not used 3 Return with C1 and C2 4 5 volts S 4 Not used 4 5 volts with C5 5 Ground with A1 5 Not used 5 5 volts with C4 and C8 6 3 3 volts SH 6 Power OK 2 6 12 volts with C7 7 3 3 volts S 7 Power OK 1 7 12 volts with C6 8 3 3 volts S 8 LCOM 8 Ground with A1 and A5 Power Pinout The table shows the pinout of the power connections on the power supply Pin Circuit Pin Circuit AC Input Power 6 DC return 5 volts with 7 1 AC in Line 1 7 DC return 5 vo
37. lts with 6 2 AC in Line 2 8 DC return 3 3 volts 3 AC in safety ground 9 DC out 3 3 volts Power Supply DC Output Power 10 DC return 12 volts 4 DC out 5 volts with 5 11 DC out 12 volts 5 DC out 5 volts with 4 22 55xx Series Chassis Technical Reference Manual Power Components Figure 17 Power Sharing DC Backplane left and Power Signal Connectors Right Communication Block Inputs Power Supply Outputs Technical Reference Manual 55xx Series Chassis 23 Power Components Drive Power Cables Overview SCA Cage Power Cable Media Cage Power Cable This section shows the power wire lists for the Media Cage and SCA Cage drives The table shows the wire list for the SCA Cage WIRE LIST Wire Number COLOR SIGNAL BLACK GROUND BLACK GRDUND BLACK GROUND BLACK GROUND ROUND LACK 12V YELLOW 5V SV RED cele ford ro ro lt lt cic 2 lt njan FE zm The table shows the wire list for the Media Cage WIRE LIST Mis ee 3 oe a p o o xi GROUND GROUND GROUND GROUND GROUND GROUND 5 GROUND COLOR eleli gm als RIRIS lt de zc SSS ER ER MR 8 props e nIelresm 2 I lt RE RC REB RE Ax
38. me Models 1 Top Cover 6 I O Plate SP5500 Models only 2 15 Xtended Xpress Baseboard 7 Chassi For other Models Passive Backplane or Split Passive Backplane 8 Pid Display with Display 12 55xx Series Chassis Technical Reference Manual Rear and Internal Components Alarm Board and Power Supplies Overview In this section remove the Alarm Board Module and Power Supply Modules Figure 10 Alarm Board Module and Tay ways power down the system before Power Supply Modules removing the Alarm Board Module When the system is powered removing the Alarm Board damages the board circuitry stem PS as ITH Sd Silla o 1 Thumbscrew Two Secure the 4 Power Supply One or Two Supplies Module A Blank Panel for an Empty Bay 2 Alarm Board Module Rear Panel 5 AC Power Entry Assembly 3 Thumbscrew Two Secure each Described in a following section Power Supply Note The DC Power Entry Assembly removes the same way as AC assembly Technical Reference Manual 55xx Series Chassis 13 Rear and Internal Components AC Power Entry Assembly Overview In this section disconnects cables remove screws and
39. n of SCSI devices ISUCS e Each device on a SCSI bus must have a unique ID e The A and B bus connectors on the 15 Xtended Xpress Baseboard buses are Fast Wide SCSI 2 e Fast Wide SCSI allows up to 15 unique SCSI ID s e The highest ID numbered devices are serviced first on the SCSI bus The SCSI booting device must be set to SCSI ID zero 0 Note IDE booting devices take precedence over SCSI Devices A device on s SCSI Bus A takes precedence over a booting device on SCSI Bus B In the SP5500 SCSI Bus A cables go to the Media Cage SCSI Bus B cables go to the SCA Cage Unless the operating system and BIOS support booting from SCA Hard Drive ID 0 on Bus B you can use either the IDE hard drive or the SCSI hard drive if installed in the Media Cage for booting e At power ON the computer loads SCSI BIOS before loading the operating system The SCSI BIOS polls the SCSI devices to gather their identifying information The computer displays the SCSI devices according to ID on the monitor Notes The following are notes about the SCSI systems in SP5500 and 55xx e Up to 6 SCA Fast Wide SCSI 2 hard drives fit into the SCA Cage Nothing in the chassis precludes using a three device cable to connect three SCSI 2 devices in the Media Cage Technical Reference Manual 55xx Series Chassis 75 Technical Data SCA Cage Termination and SCSI IDs Overview SCA Cage SCSI Specifics SCA Cage Preset SCSI IDs Binary SCSI ID Addit
40. ng the internal components To help prevent accidental damage that can be caused by stati discharge always use a grounding wrist strap or other static dissipating device when accessing the interior of the chassis and handling the equipment Technical Reference Manual 55xx Series Chassis 1 Front Access Components Front Access Modules and Components Overview This section shows an exploded view of the front accessible components and modules Figure 1 Front Access Modules and Components 1 Vented Plate Insert If No SCA Cage 6 Chassis with Top Cover Installed 7 Media Cage Frame 2 SCA Cage 8 Insert for empty 3 5 Floppy Diskette 3 Plastic Insulting Cover Drive bay 4 DC Power Distribution Backplane 9 3 5 Floppy Diskette Drive 5 Redundant Cooling Fan Module Two 10 Blank Panel for Media Bays fans linked together 11 Front Bezel with filters 2 55xx Series Chassis Technical Reference Manual Front Access Components Front Bezel Overview In this section remove and disassemble the Front Bezel Figure 2 Front Bezel and Components 1 Front Bezel Frame 4 Door Air Filter 6 25 H 6 Key Lock Assembly 2 Air Filters 5 5 6 7 W 8 25 W MEN 7 Bezel Door Left 3 Metal Frame Air Filter 5 Bezel Door with Lock 8 Key One of Two Keys Retainer Right Technical Reference Manual 55xx Series Chassis Front Access Components Door Filter and Mounting Spring
41. nts sse 2 dioudr le PEU 3 Door Filter and Mounting Springs ssssseeeee 4 Cooling Fan Modules ssssssssessesses ener nnns 5 SCA CAG t 6 SCA Cage Disassembly ssssssssssseseeeneeeeeee nennen nennen 7 Media Gage C 8 DC Power Distribution Backplane seen 9 Chapter 2 Rear and Internal Components 11 Rear Panel and Top Cover Access 12 Alarm Board and Power Supplies sssssseeeee 13 AC Power Entry Assembly sssssssssssseseeeeeeeeen nnne 14 Front Panel Display este mex OPER ne EX Rea 15 Passive Backplane or Baseboard see 16 Chapter 3 Power Components 17 AC Power Entry Assembly J4 Pinout and Fuse 18 Connectors on the DC Power Distribution Backplane 20 Rear of the DC Power Distribution Backplane 21 Drive Power Cables ssssssssssseseeeeeee enne nennen nnne enn 24 Signals to the Front Panel Display 26 Power to the Baseboard Passive Backplane 28 Chapter 4 DC Power Components 29 48 Volt
42. omponents 48 Volt Information Overview Specifications This section contains information about the 48 volt power subsystem This DC Power Supply outputs these voltages and amperages e 5 V 50A e 12 V 8 A e 12 V 0 75 A One Supply One DC power supply can operate the entire fully loaded 55xx 48 system The power Required supply for a one supply configuration is installed in the upper not lower bay Nominal 48 The DC Power Supply has a nominal 48 volt input which is rated between 36 72VDC volts 20 Ampere The 55xx 48 nominal 48 volt power input has a 20 ampere fuse The 55xx 48 positive Circuit lead is normally tied to ground at the input power source The 55xx 48 power input Breakers assembly has power inputs for two power sources Each power input has a single pole circuit breaker Combined The 48 volt inputs from external power source 1 and 2 are wired together after the Current circuit breakers The positive inputs from external power source 1 and 2 are also wired together after the circuit breakers DC power is available to both power supplies from the combined 48 volt current and combined positive current from the external sources DC Power The illustrations below and on the opposing page show the wiring of the DC Power Entry Wiring Entry Harness 30 55xx Series Chassis Technical Reference Manual DC Power Components Figure 21 DC Power Harness Connection J4 on DC Power Distribution Back
43. or and Reset Button for PC2 Left 48 55xx Series Chassis Technical Reference Manual 55xxSP Components Keyboards and Resets for Two Media Cages Overview This section shows the front and rear keyboard connections and the reset buttons Figure 31 55xxSP Keyboard Connections Pinouts Wiring and the Reset Buttons KBD CLOCK GROUND KBD DATA 5 VDC KBD RESET 1 Keyboard Connector and Wiring Diagram 2 Pre installed Rear keyboard Connectors 3 SBC Connector for Front Keyboard Reset Button 4 Cable Pass Through 5 Keyboard Reset Button Combined Cable Technical Reference Manual 55xx Series Chassis 49 55xxSP Components Media Cage Adapter and Combined Cable Overview Figure 32 This section shows the components unique to the Two Media Cages svoe RED 1 PC1 Keyboard Connector 5 Keyboard Mounting Hole 2 Screw 6 32 x 5 16 with Two Screw Holes 3 PC1 Reset Button 6 Reset Button Hole 4 Medi M 7 J3 is the Connector for the dius wade Mounting Rear Keyboard Cable 8 SBC Connector 55xxSP Media Cage Keyboard Connector and Reset Button Adapter GREEN Reb enows FERRITE BEADS 9 Front Keyboard Pinout Same as Rear Keyboard 10 Reset Button Wires 11 PC2 Reset Button 12 PC2 Keyboard Connector 13 Media Cage Adapter 50 55xx Series Chassi
44. plane 48 Volt Power Entry Assembly External Power Source 1 Circuit IN1 Breaker 131 IN 1 48 Volts DC Power J4 Distribution Backplane Ground 5 External Power Source 2 Circuit Breaker IN2 Nominal IN2 DC Power Entry Harness i From the Power Entry Assembly Input Connection on the DC Power Distribution Backplane if gt Nominal Blue or Orange Wire Number Technical Reference Manual 55xx Series Chassis 31 DC Power Components DC Power Entry Harness Overview This section shows the power harness for the 55xx 48 NOTE The DC power has been OR ed 48 Volt lines combine and Nominal lines combined before the power reaches this harness Wire List The table below identifies the wires in the DC Power Entry Harness WIRE LIS COLOR SIGNAL ORANGE OC LDADC GREEN CHASSIS GNO BLACK BLACK DC LOADC 32 55xx Series Chassis Technical Reference Manual DC Power Components Figure 22 DC Power Entry Harness 18 00 25 12 00 25 GND 9 GND Technical Reference Manual 55xx Series Chassis 33 DC Power Components DC Power Supply Pinouts
45. r shows removing components and modules form the rear of the chassis This chapter also shows removing the top cover to remove components inside the chassis The topics covered are these Remove the Alarm Board Module Remove the Power Supply ies Remove the AC or DC Power Entry Assembly Remove the Front Panel Display Display Board Remove the baseboard or passive backplane For your safety and the longevity of the electronic components in the chassis please observe the following warning and caution before working on the unit Only qualified experienced electronics personnel should access the interior of the chassis and handle the equipment To avoid damage or injury always power off the system and disconnect all power cords from their power source before handling the internal components To help prevent accidental damage that can be caused by static discharge always use a grounding wrist strap or other static dissipating device when accessing the interior of the chassis and handling the equipment Technical Reference Manual 55xx Series Chassis 11 Rear and Internal Components Rear Panel and Top Cover Access Overview This section shows an exploded view of the rear panel modules and internal components Figure 9 Rear Panel Internal Modules and Components 3 Power Entry Assembly Cables on the Other Side 4 Two Power Supplies One Supply in Some Models 5 Alarm Board Module In So
46. ress Baseboard Similar considerations apply to removing passive backplanes Figure 13 Disconnect and Remove Baseboard or Backplane 1 Baseboard Passive 3 Horizontal Bulkhead 4 Standoff Backplane Mounting between CPU and Power 5 Cable Pass Through Screw Supply Area 6 Cooling Fan Front Panel 2 I O Mounting Screws Display Compartment SP5500 Only PES 16 55xx Series Chassis Technical Reference Manual Power Components This chapter shows the power components common to the AC and DC models as well as featuring the AC power supply AC Power Entry Assembly and AC Power Harness The next chapter shows the components specific to the DC models Topics covered are these e AC Power Entry Assembly AC Fuse DC Power Distribution Backplane Internal DC Power Connections Power Sharing and AC Power Supply Pinouts e Media Cage and SCA Cage Power Cable Pinouts e Front Panel Display Signals and Power Pinout Connectors for the Passive Backplane or Baseboard Power Harness Technical Reference Manual 55xx Series Chassis 17 Power Components AC Power Entry Assembly J4 Pinout and Fuse Overview This section describes the AC Power Entry Assembly the power harness and the pinout of the power connection to J4 on the DC Power Distribution Backplane The connectors are the same for AC and DC models but the power signals over the wires are different For DC see the next chapter
47. s Overview In this section disassemble Front Bezel doors and adjust the mounting springs Figure 3 Front Bezel Doors Air Filters and Bezel Mounting Springs NOTE The wire frame and door can be removed 1 Pull the frame away from the door 2 Slide the hinge rod into the bezel 3 Pull the frame then a door from the bezel 1 Front Bezel 5 Recess allowing Metal Frame to be 2 Air Filter 6 25 H 8 25 W installed 3 Metal Frame Air Filter Retainer 6 Under Side of the Front Bezel which h Metal Spring ll 4 Metal Spring Retains the Front Panel Shows Metal Spring Installed Ball Studs 4 55xx Series Chassis Technical Reference Manual Front Access Components Cooling Fan Modules Overview In this section remove the Cooling Fan Modules from the Front Panel Figure 4 Cooling Fan Modules 1 Mounting Tab 4 Fan Power Connector 7 Fan Power Connector not 2 Front Cooling Fan Secured 5 Power Receptacle on Fan in view to Assembly Grill Monitoring Display Board 8 Front Panel Display All 3 Rear Cooling Fan Secured 6 Thumbscrew to Secure display models have Fan to Front Fan Assembly in Chassis connections Technical Reference Manual 55xx Series Chassis Front Access Components SCA Cage Overview In this section disconnect and remove the SCA
48. s Technical Reference Manual 55xxSP Components 55xxSP Cables Overview This section shows two of the cables used in the 55xxSP Figure 33 55xxSP Cables ONES TE H 8 Single Board Computer Connector for the Combined Cable Note Both the Computer PC1 and PC2 have this 1 P1 Connector 3 5 Floppy 5 The Same Connector as cable though the length Diskette Drive 4 View Rotated 90 may be different for the 2 Red Stripe Pin 1 of the 6 Connect 7 View Rotated SCA Cage Dual Floppy Cable 90 9 Front Panel Keyboard 3 P2 Connector 7 Connector which attaches Connector 4 Single Board Computer to a Rear keyboard Cable 10 Reset Button Connector 11 Floppy Cable Twist Technical Reference Manual 55xx Series Chassis 51 55xxSP Components Power Cables for the SCA and Media Cage Overview This section shows the power cables for the SCA Cage and Media Cage Figure 34 55xxSP Power Cables for the SCA and Media Cages 1 16 pin SCA Cage Power Cable 2 14 pin for Media Cage Drives 3 Adapter for 3 5 Floppy Diskette Drive 4 SCA Cage Adapter Plate for PC2 Keyboard and Reset Button Can also be installed in SCA Slot 0 Left 52 55xx Series Chassis Technical Reference Manual 55xxSP Components Keyboards and Resets for the SCA and Media Cages Overview This sec
49. s and Remove the Cage from the Chassis 6 Disassemble the SCA Cage Remove the SCSI Backplane Disassemble Sleds 7 Media Cage 8 DC Power Distribution Backplane sse eene nnne nnne nenne 9 Rear Panel Internal Modules and Components 12 Alarm Board Module and Power Supply Modules sss 13 AC Power Entry Assembly ssssssssssssssseeeeeeee nennen ennt nennen nennen nnne nnne 14 Front Panel Eryx M 15 Disconnect and Remove Baseboard or 16 AC Power Entry Harness nennen tenens inneren nannten 19 Power and Signal Connectors sess ener nnne 20 Rear of DC Power Distribution 21 Power Sharing DC Backplane left and Power Signal Connectors Right 23 SCA and Media Cage Power Cables 25 Display Alarm Board Connections J11 J9 and J8 27 Baseboard Passive Backplane Power J6 and 28 DC Power Harness Connection J4 on DC Power Di
50. slide the AC Power Entry Assembly through the SCA Cage cavity AC and DC assemblies remove the same way Figure 11 AC Power Entry Assembly 1 Screw and Washer 8 Power Supply Support 2 Chassis Grounding 5 Power Harness Connector Slide Power Supply Wire One of Two to J4 AC or DC Models 3 Primary Power Connector 6 Screw and Washer for DC Power Distribution Securing Power Supply 9 Nut Securing the Chassis Backplane J4 Grounding Wire Grounding Wire Screw 4 Screw and Washer 7 Power Supply Grounding 10 Flange for Assembly Securing Power Entry Wire Screw One of Two Assembly Removed Flanges Through SCA Bay 11 Fuse 14 55xx Series Chassis Technical Reference Manual Rear and Internal Components Front Panel Display Overview In this section disconnect and remove the Front Panel Display and Display Board Figure 12 Front Panel Display 1 Mounting Screw 2 Display Standoff 3 Front Panel Display Not in all Models 4 Cooling Fan Power Receptacle 5 Display Cable 40 pin 6 SCA Hard Drive Activity LEDs Amber 7 Cable from Board to Display 8 Cooling Fan Fault LED Red 9 Fault LEDs or Display Opening in the Front Panel 10 Front Panel Technical Reference Manual 55xx Series Chassis 15 Rear and Internal Components Passive Backplane or Baseboard Overview In this section remove the 15 Xtended Xp
51. stribution 31 DC Power Entry Harness uono nnns ae enne tenis sen retener senten en 33 Power Supply Pins and Communication 35 CB1 Controls IN1 and CB2 Controls IN2 sse 36 SP5500 Baseboard Power 5 esee nennen nennen nennen 39 5520P Passive Backplane Power Harness c ccceeeeeeeeeeeeeeeeeeeeeeeeaaeeeeeeeaaaeeeeeeeaeeeeeseaaaes 41 5512PE Passive Backplane Power 43 5518SP Passive Backplane Power Harness sse eene 45 5518P Passive Backplane Power Harness sssssseeene nennen 46 55xxSP Power Cable Routing sssesssssssssesesse esent nennen nen rennen nene nenne 48 55xxSP Keyboard Connections Pinouts Wiring and the Reset Buttons 49 55xxSP Media Cage Keyboard Connector and Reset Button Adapter 50 sio etin eo P aa Seina Tai 51 55xxSP Power Cables for the SCA and Media 52 55xxSP Keyboard and Reset Cable Routing 53 Alarm Board Rear Panel unie cet teet ree aa eruere al Dres recen rn 60 Pinout and Illustration of the Alarm Board Conne
52. t any time during the clock cycle Note The CPU modules on the 15 Xtended Xpress Baseboard are high speed interfaces on a Intel proprietary bus The memory modules have nothing to do with the PCI bus The processor boards include PCI slots to communicate with the PCI device in slots on the baseboard 66 55xx Series Chassis Technical Reference Manual Technical Data ISA IRQ The following are characteristics of ISA IRQs Interrupt e An IRQ signals the CPU to pause what it is doing and execute an interrupt handler Requests routine to service the interrupt IRQs can be blocked so that the CPU continues its current activity Generally speaking IRQs are blocked for only very small periods of time because they represent request for essential services Interrupt The interrupt controller feeds the CPU the highest priority ISA IRQ When the Controller processor has serviced this interrupt if there is any other interrupt pending the interrupt controller interrupts the CPU again Technical Reference Manual 55xx Series Chassis 67 Technical Data PCI Interrupt Rotation Overview Texas Micro PCI Interrupt Rotation Rotation Scheme without PCI PCI Bridges PICMG PCI Rotation Specification This section describes PCI interrupt rotation used by Texas Micro Inc on the PCI slots The following information provide the basis for PCI interrupt rotation e PICMG defines how the PCI interrupts
53. ted Alarmi Messages eee eue thea Ro dep ne eade un 58 J9 96 Pin Connector nnn ns A dana 61 Jumpers on the Alarm Board 62 Alarm Board Operating Characteristics ssssssseeeeeene 64 Chapter 8 Technical Topics 65 PCI IRQ Interaction 66 PCI Interrupt Rotation 68 Resolving PCI IRQ Conflicts 12 ep gm 73 Automatic Manual PCI IRQ Assignment 74 SCSI InformaliOTi eda Ebo dean e MA caa dut aS 75 SCA Cage Termination and SCSI ID Addition 76 Hot Swapping Requirements 78 Chapter 9 Specifications 79 v 55xx Series Chassis Technical Reference Manual List of Figures amp om Front Access Modules and Component 2 Front Bezel and 3 Front Bezel Doors Air Filters and Bezel Mounting Springs 4 Cooling Fan Modules 5 SCA Cage Remove Cable
54. tion OVER TEMP The chassis ambient temperature exceeds a level set by OVER TEMP The chassis operates under the temperature ceiling recommended NORMAL for the unit CPU 0 FAN ERR Cooling fan 0 has failed and sent an error message to the Alarm Board One of the two Cooling Fans in the dual assembly has failed and the other fan spins up to move the same amount of air The error condition does still exist with this automatic response Or Both Cooling Fans may have failed in the dual fan assembly In this case the air cooling the chassis has been reduced by 30 CPU 0 FAN NORMAL Cooling fan 0 now operates normally and has sent a clear message the Alarm Board CPU 1 FAN ERR Cooling Fan 1 has failed and sent an error message to the Alarm Board One of the two Cooling Fans in the dual assembly has failed and the other fan spins up to move the same amount of air The error condition does still exist with this automatic response Both Cooling Fans may have failed in the dual fan assembly In this case the air cooling the chassis has been reduced by 30 CPU 1 FAN NORMAL Cooling fan 1 now operates normally and has sent a clear message the Alarm Board CPU O PWR ERR The Alarm Board received an error message from the power supply 0 the upper supply The secondary power output has exceeded the voltage amperage tolerances for the supply CPU 0 PWR NORMAL The secondary power output form power suppl
55. tion disconnect and disassemble the Media Cage Figure 7 Media Cage 1 DC Power Distribution 4 Cable Pass Through 10 Two Connector Cable for Backplane 5 Power Connectors 4 pin SCSI 2 Devices 2 Cables routed to the 6 Power Connector 2 pin 11 Media Cage Frame Passive Backplane 12 Screw Baseboard Compartment 7 3 5 Floppy Diskette Drive n EM onanii 3 3 5 Floppy Diskette Drive 8 Mounting Screw Cable 34 Pin with a twist 9 Cable for an IDE Hard Drive 34 pin 8 55xx Series Chassis Technical Reference Manual Front Access Components DC Power Distribution Backplane Overview In this section remove the DC Power Distribution Backplane Figure 8 DC Power Distribution Backplane 1 Power Entry Harness 2 Power Entry Harness A Disconnected from J4 i 8 DC Power Distribution 3 SCA Cage Power Cable 6 Power Cables for the Backplane 4 Media Cage Power Cable Passive Backplane 9 Plastic Insulating Cover 5 Top of the Power Supply Baseboard Compartment shown separated from Compartment in a Cut 7 Compartment for Alarm backplane but actually Away View of the Chassis Board Module part of the DC Power Distribution Backplane Technical Reference Manual 55xx Series Chassis 9 Front Access Components Notes 10 55xx Series Chassis Technical Reference Manual Rear and Internal Components Before Working on the Unit This chapte
56. tion shows the keyboard and reset cable routing for the SCA and Media Cages Figure 35 55xxSP Keyboard and Reset Cable Routing KBD CLOCK GROUND KBD DATA 5 VOC KBD RESET 1 Rear Keyboard Pinout Same as Front 2 Rear Keyboard Connectors 3 Single Board Computer Connectors for Combined Cables 4 Cable Pass Through 46 5 Front Keyboard Connector and Reset Buttons for PC1 and PC 2 Technical Reference Manual 55xx Series Chassis 53 55xxSP Components Notes 54 55xx Series Chassis Technical Reference Manual Alarm Board Module The Alarm Board receives error messages and clear error messages from the components inside the chassis This chapter describes those messages where the Alarm Board sends them Topics covered are these Alarm Board Features Alarm Messages Displayed Alarm Messages Printed Serial Connector Alarm Board Connection to the DC Power Distribution Backplane Jumpers on the Alarm Board Alarm Board Operating Characteristics Technical Reference Manual 55xx Series Chassis 55 Alarm Board Module Alarm Board Features Overview 4 way Alarm Board response to error conditions Clearing Alarms A passive monitor This section discusses the features of the Alarm Board Module The Alarm Board responds to an error conditions in the following ways 1 The alarm relay activates whenever an error is presented to the Alarm
57. vel resets the entire XX system ov Ground FPNMi Low level will generate a Processor NMi av T Ground _t SC 11 0 SCSI Controller 1 LED 150 ohm puilup SC 1 RTN Low level turns on LED1 SC 2 LED SCSI Controller 2 LED 150 ohm pullup SC 2 RTN Low level turns on LED2 KEYLOCK Low level will cause the Keybd to be locked out Ov Ground 1 e SECUR High level locks out reset and off switch CHASIS SWT 10K puilup KEY Missing pin 5V 5V after on off switch is asserted on I2C SDA CHASIS SWT RET KS If chasis door is open OV if closed 5V LCD bidirectional serial data to from INCA Not used LCD SCLK Serial dock for Shift register serial parallel IC LCD data interface I2C SCL I2C dock LCD PCLK Parallel data load unioad clock for LCD data interface Ground LCD READ WRITE RS LCD REGISTER SELECT PWR LCOVCC Low level resets LCD display ov 26 55xx Series Chassis Technical Reference Manual Power Components Figure 19 Display Alarm Board Connections J11 J9 and J8 Front 40 Pin Panel Display 1 Alarm Board Sensed Signals g L Li 9 73 o a 4 2 2 A MN D J11 J9 Suis be DBJ A E
58. vidual SCSI drives keep a record of the mapped locations of data and accept controller commands for those blocks of data The drive itself handles the details of read and write functions Read the RAID or SCSI manufacturer s user documentation The manufacturer is the best source for detailed information to help you operate or troubleshoot the controller 78 55xx Series Chassis Technical Reference Manual Specification This chapter presents the chassis specification Factor Information AC Power Input SP5500 55xx and 55xxSP 90 240 VAC 47 63 HZ AC Power Supply SP5500 55xx and 55xxSP 400 Watt Autoswitching DC Power Output for AC Models SP5500 55xx and 55xxSP 5 V 50 0 A 12 V 8 0 12 Peak A 3 3 V 15 0 A SP5500 only not on passive or split passive backplane chassises 12 1 0A 5 9 0 5A DC Power Input 55xx 48 Nominal 48 Volt Input O 36 72 HZ DC Power Supply 55xx 48 400 Watt Autoswitching DC Power Output on AC Models 5 V 50 0 A 12V 8 0A 12 V 0 75 Technical Reference Manual 55xx Series Chassis 79 Specifications Factor Information Dimensions 12 5 19 W 19 25 D 317mmH 482mmW 489mmD Construction Heavy gauge steel zinc plated Weight 55 Ibs 24 75 kg without peripherals or power supplies 75 Ibs 34 kg typical Temperature Operating 0 to 45
59. y 0 the upper supply is now within voltage amperage tolerances The Alarm Board receives and transmits a clear CPU 0 PWR error message CPU 1 PWR ERR The Alarm Board received an error message from the power supply 1 the lower supply The secondary power output has exceeded the voltage amperage tolerances for the supply CPU 1 PWR NORMAL The secondary power output form power supply 1 the lover supply is now within voltage amperage tolerances The Alarm Board receives and transmits a clear CPU 1 PWR error message 58 55xx Series Chassis Technical Reference Manual Alarm Board Module Messages Generated for print by the Alarm Board Message Description XPRESS ERROR BIOS Error The Intel Xtended Xpress sent an error code message to the Message Alarm Board The Alarm Board forwards the message in this form For Xtended Xpress systems see the SP5500 user s manual for the Intel error codes XPRESS ERR CLEAR The Intel Xtended Xpress has sent a clear message for the error SYSTEM NORMAL condition or conditions it reported earlier Technical Reference Manual 55xx Series Chassis 59 Alarm Board Module Serial Connector External Maintenance Port Overview This section describes the serial connector on the module rear plate Serial 9 pin The Alarm Board communications are unidirectional The serial messages are produced port on rear as
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