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■+└&ëG&ëë╛n Ä┌9&9ptHÄ▄9&9vt=╕PPÄ▐9& 6û& 6öÜ`┘â─╕æ% PÄ▐9& 6û& 6öÜZ┘â─ÜT┘δ╕╡% PÜ|α â─╗TÄ :ë₧■îå■&╟╕╨PÜ╒ â─ëF∞ëVε╕pPÜ╒ â─ëF≡ëV≥+└ëF÷ëF⌠èå{ ■å{ <vΘvâ~uZ 6`# 6^#╕└% P ╢~ VÜαα â─ ╕P ╢~ VÜ" α â─P ╢~ VÜJ] --πH.21 - What SCSI devices can be attached?ππ The amount and type of support for SCSI devices varies by theπ operating system used. Please refer to the different RT operatingπ system specific FAQ list for more information about SCSI support.π π The IBM suported SCSI adapter is a 'Differential Driver/Receiver π option' with the 'Alternative 2 connector'. The SCSI interface π conforms to (then) proposed ANSI standard X3T9.2/82-2 Rev. 17B.ππ Two wires are used for each signal lead in a push-pull signalingπ method also called 'differential-ended'. Most drives for other vendorπ workstations and PCs use a 'single-ended' SCSI implementation.π What this boils down to is that the IBM SCSI card is electriclly π incompatible with a lot of the off-the-shelf SCSI drives.ππ IBM officially supported only one device attached to the SCSIπ interface card, the 9332 'Athens' disk drive.ππ However, all is not lost. :-)π Some vendors do offer their SCSI drives with an optional differentialπ interface. There also exist a couple of manufacturers ofπ 'Differential-to-single-ended' converter boxes. These boxes allowπ a bi-directional conversion of the SCSI bus and will allow attachmentπ of these single ended disk drives.ππ See the AIX FAQ for more information about using OEM SCSI disks π on an RT using the IBM SCSI board. ππ Under the AOS operating system, several people have modified theπ system to use an Adaptec SCSI controller. That controller usesπ single-ended devices.ππ [ More information about this Adaptec controller can be found inπ the AOS specific FAQ list. - MW ]ππ-------------------------πH.22 - What do the LED codes mean during power on?ππ When power is first applied, initial self tests are performed by π built it ROM routines and special processor on the system planarπ board. These self tests should complete with in 1-2 minutes.ππ ROS LED Values during IPLπ 00 Initialization of Mono/Printer adapter failedπ 01 ROS CRC did not compare - Fatalπ 02 Soft IPL check failed - Fatalπ 03 Memory error or no memory - Fatalπ 04 Processor card logic error - Fatalπ 05 Processor or memory error condition - Fatalπ 07 IOCC test resident POST - Fatalπ 08 Bad processor card in IOCC test - Fatalπ 09 Keyboard adapter resident POST - Fatalπ 0c initialization failed - Mono/Printer adapter and APCπ 10 System timer resident POST - Fatalπ 11 Interrupt controller POST - Fatalπ 12 DMA arbiter resident POST - Fatalπ 13 Serial port resident POSTπ 14 Fixed disk resident POST adapter 1 testπ 15 Fixed disk resident POST adapter 2 testπ 16 Diskette resident POST adapter 1 testπ 17 Diskette resident POST adapter 2 testπ 18 Extension ROSπ 19 Attemting Manufacturing IPLπ 1c Advanced Processor card - Fatalπ 1u Enhanced Advanced Processor and memory Mgmt card - Fatalπ 20 NVRAM CRC checkπ 21 No boot record found (NVRAM selected devices)π 22 No boot record found (ROS selected devices)π 23 Disk or diskette adapter slot or address - Fatalπ 25 User error - invalid RamSpecReg - Fatalπ 26 Attempting soft IPLπ 27 Bootable code exceeds available storage - Fatalπ 28 Unexpected return from loaded code - Fatalπ 29 IPL process passed control to loaded code.π 3c Advanced Processor card and first 128K of memory.π 3u Enhanced Advanced Processor and memory Mgmt card.π 4c APC logic (Advanced Processor Card).π 4u Enhanced Advanced Processor and memory Mgmt card Logic.π 5c APC logic and system memory.π 5u Memory expansion option or Enhanced Advanecd Processor and π memory managment card.π 88 reserved - POR or processor checkπ 89 Unexpected machine or program check - Fatal.π 8c IOCC test for APC.π 8u Enhanced Advacned processor and memory managment card.π 96 Memory card 1 resident POST error condition.π 97 Memory card 2 resident POST error condition.π 98 Memory card 1 and 2 resident POST error condition.π 99 KEY locked, locked response.ππ-------------------------πH.23 - What does LED code xx mean (during runtime)?ππ LED codes displayed while running vary greatly depending on theπ operating system used. Please refer to the different RT operatingπ system specific FAQ list for more information about these LEDπ codes used.ππ-------------------------πH.24 - What is different about the RT I/O slots.π What cards will run in slot 8.π π The IBM RT 6150 and 6151 system units use ISA (AT) style I/O slots,π however slot 5 on the 6151 and slot 8 on the 6150 are unique to the RT. π Most cards that do not use memory refresh, or DMA channel 7 willπ have no problem with that slot. Bus timings may be slightly different,π from an AT, as I/O accesses are not driven by the processor directly,π but are routed via a special bus processor called the IOCC. ππ The 8th slot in the 6150 RT and the 5th slot for the 6150 onlyπ have three signals different from the normal PC/AT assignments.ππ Pin Standard CO-proc slot usage My notes.. π B19 REFRESH + SPK DRV (Wire or'd to speaker control)π D14 DACK 7 - DACK 8 DMA channel is reassigned..π D15 DRQ 7 + DRQ 8 .. dittoππ The following cards cannot go in slot 8:π - AT 512Kb Memory expansion card (no refresh signal available).π - Baseband adapter (Ethernet, Ungerman-Bass) [Timing?? -MW]π - SCSI adapter ONLY when it is using DMA channel 7... channel 7 isπ not connected to SLOT 8.ππ These cards require special slot placements:π - EGA adapter only in slot 3 or 6 (6150) or slot 1 (6151).ππ - Megapel adapter is two boards sandwiched together, and canπ only be installed in slots 4 & 5 in a 6150 tower.π It can also be installed in slots 2 & 3 (prefered), slots 3 & 4,π or slots 4 & 5 (least prefered) in the 6151.π [ It has been noted via discussions in this newsgroup that theπ the later X servers will have problems, errors and timing problemsπ if the megapel adapter is NOT placed in the prefered slots! -MW ]ππ - AT-Coprocessor in installable ONLY in slot 8 of the 6150 tower,π or in slot 5 of the 6151 desktop.π (That's why it is called the coprocessor slot! :-)ππ - The PC XT mono/printer adapter, is ONLY supported in slot 3 in π the 6150 tower, or ONLY in slot 1 in the 6151 desktop. π [ I'm not sure why this slot 3 restriction is here, what'sπ wrong with slot 6? Timing? - MW ]π IBM Mono Adapters with Part numbers 1804065, 1804073 or 1501667 π cannot be used according to the parts book that I have seen.π The options book indicates that those part number mono adaptersπ will not operate correctly with an RT.π π I have had reports that clone monochrome cards also may haveπ problems running in an RT. I have not tried them myself.ππ Any 8-bit card is better off in slots 3 or 6 (6150) orπ in slot 1 (6151), as those slots are 8-bit only anyway.π Save a 16-bit slot for a card that needs it.ππ-------------------------πH.25 - How do I run diagnostics.ππ IBM supplied with most RT systems several books, one set of three booksπ are maroon in color, and contain setup, install and one book labeledπ "IBM RT PC Problem Determination Guide" (RT PD). The Problemπ Determination guide is usually composed of two manuals in oneπ binder. IBM manual number SA23-2604, and for those users whoπ ordered AIX with their systems, it also contains SA23-2603 titled:π "IBM RT AIX Operating System Problem Determination Guide".π This binder also contains three diskettes with maroon labels. π Volume one of the three diskettes is bootable, and when booted,π causes it to examine the system hardware, and place a menu ofπ diagnostic options on the screen. Most of the diagnostics are menu π driven and are self-explanatory. The RT PD guide will take you thruπ any special procedures if necessary.π π Further problem diagnosis is available in the dark blue book π with the title "IBM RT PC 6150 System Unit Hardware Maintenanceπ and Service" Manual# SA23-2605 or Part Number 22F9803. π This book contains problem isolation charts, part numbers,π installation information and a SRN (Service Request Number) toπ FRU (Field Replaceable Unit) part index. This book also containsπ a LED fault code to SRN reference, as well as probable failure partπ analysis charts.π π-------------------------πH.26 - Serial port cards maximums and limitations.ππ NOTE: The following information is gleaned from the IBM announcementπ letters and general information sheets. It is the only information π I have acess to and concentrates on the limitations imposed byπ AIX 2.2.1 on the RT hardware, the only announced OS IBM supportedπ for the RT systems.π AOS users report that the baud rate limits have been exceededπ up to 56Kb by modifications to the standard AOS kernel. π I am not sure at this time what the exact speed capabilities andπ limitations may exist with the modified AOS kernel. - MWππ * The internal serial ports of the 6150 tower model RT areπ normally able to run at a maximum of 19.2K bits per second.π * The IBM RT 8-Port Adapter is capable of all 8 ports operatingπ concurrently at 19.2 K bits per second. π * All 8-Port Adapters installed in a single system unit shouldπ be set to the SAME interrupt level for best performance.π * For proper software operation, 4-Port Asynchronous Adaptersπ must be set to a DIFFERENT interrupt level than 8-Portπ Adapters, when installed in the same system unit.π * IBM RT 8-port Adapters in the 6192 Expansion Unit should beπ set to DIFFERENT interrupt levels. Interrupt sharing is notπ supported between the IBM RT System Unit and the 6192π Expansion Unit.π * A maximum of EIGHT 8-port Adapters can be installed on a system. π (e.g. 6 adapters in the 6192 Expansion Unit and 2 in the RTπ system unit)π * Concurrent use of 4-Port Adapters and/or PC AT Serial/Parallelπ Adapters and/or 6150 native Serial Ports with the 8-Portπ Adapters may result in reduced performance on the devicesπ attached to the 8-Port adapters, depending upon line speeds π and device usage.π * If a 5080 Peripheral Adapter is installed in the systemπ unit, the maximum numbe-------------------πH.20 - What are the characteristics of the various IBM RT disk drives?ππ This table is collected from the various hardware manualsπ for the IBM RT, and from other sources.ππ Note: All drives have a 512 byte sector size.ππ Drive part# type Cyl head Sects intrl (2)π R40 6299235 MFM 733 7 17 2π (1) R70 61X6942 ESDI 566 7 36 4π E70 73X3989 ESDI 582 7 36 1π E114 00F2273 ESDI 914 7 36 1π E310 08F3358 ESDI 1225 15 34 1π (3) H310 08F3358 ESDI 1225 15 34 1ππ Note 1: I am not sure why the tech manuals give such radicallyπ different number of available cylinders for the identicalπ disk drive. I have seen an R70 and E70 side by side, andπ they are identical, and are 'IBM type 0667' drives!π [ Are there some other 'R70' drives out there?? -MW ]ππ Note 2: intrl = Sector interleave value, sects = Sectors per track.ππ Note 3: The MAXTOR documentation indicates that the drive normally π has 36 sectors per track, yet all the IBM drive tables andπ documentation indicate differently.π See also the VRM table below. ππ An intresting recent addition is this table I built by examining theπ VRM utility format program. When you need to reformat a new or π non-IBM drive, this utility will place the minidisk partition tableπ and other IBM required identification information on the drive. π While you can enter non-standard paramenters, built into theπ program are the parameters for all the IBM drives.π Anybody know the reason for the discrepency? Which is correct?π The R30 is intresting, I have never seen it described in anyπ IBM liturature for the RT.π π Drive type cyls heads sects intrl skew precompπ R30 MFM? 733 5 17 2 0 300π R44 MFM 733 7 17 2 0 300π R70 ESDI 566 7 36 4 0 noneπ E70 ESDI 683 7 35 1 0 noneπ E114 ESDI 915 7 35 1 7 noneπ E310 ESDI 1225 15 33 1 8 noneπ (3) H310 ESDI 1189 15 34 1 0 noneππ----------------------- |_____| |____________| |ππ π Position A is for floppy drive cable.π B = for dasiy chained data cable for both hard drives.π C = for first drive control cable, or third drive on second card.π D = for second drive control cable.π Jupmers in "S" direction for secondary, "P" for Primary.ππ I/O addresses used (jumpered primary, slot 1):π Floppy drives A and B - 03F0 - 03F7π Drives C and D - 01F0 - 01F7ππ I/O addresses used (jumpered secondary, slot 2):π Drives E - 0170 - 0177ππ DMA channel 2 (diskette only)π IRQ diskette - 6 Fixed disk - 14.ππ-------------------------πH.29 - Jumper locations and information on ESDI adapter.ππ The ESDI controller has the same connector arrangement as the MFMπ controller and only a SINGLE jumper in about the same position as theπ MFM controller. Looking at the card, the jumpers would be with the "S"π direction being for Primary (backwards from the jumpering for the MFMπ controller) and the "P" direction for secondary.π This interface board was discontinued with the announcement of theπ EESDI controller card.π π This controller has a part number of 00F2160.ππ I/O addresses used (jumpered primary, slot 1):π Floppy drives A and B - 03F0 - 03F7π Drives C and D - 01F0 - 01F7ππ I/O addresses used (jumpered secondary, slot 2):π Drives E - 0170 - 0177ππ DMA channel 2 (diskette drives only)π IRQ diskette = 6 Fixed disk = 14.ππ-------------------------πH.30 - Jumper locations and information on EESDI adapter.ππ The Extended ESDI controller had two versions: (see below)ππ ----------------------------------------------------- ---π | :: :: :: :: :: ||π | :: :: :: :: :: ||π | E D C :: :: ||π | B A X Y Z || early cardπ | . o-o ||π --------------------------+ +--+ +----+ π |_____| |____________| |ππ ----------------------------------------------------- ---π | :: :: :: :: :: ||π | :: :: :: :: :: ||π | E D C :: :: ||π | Z Y X B A || later cardπ | o-o . ||π --------------------------+ +--+ +----+ π |_____| |____________| |ππ Position A - is for floppy drive cable both floppies.π Position B - dasiy chained data cable for all three hard drives.π Position C - for first drive control cable.π Position D - for second drive control cable.π Position E - for third drive control cable.π π Primary address, jumper Z to Y.π Secondary Address, jumper Y to X.ππ Later version Part Number, 08F3766.ππ I/O addresses used:π Floppy drives A and B - 03F0 - 03F7π Drives C, D and E - 01F0 - 01F7 and 05F0 - 05F7ππ DMA channels Diskette = 2 FIxed disk = 0 or 1 (set by program).π IRQ diskette = 6 Fixed disk = 12 or 14 (set by program).ππ-------------------------πH.31 - Jumper locations and information on the 'PORTED' EESDI adapter.ππ The "Ported" or Portable Drive adapter was a special version of theπ standard Extended ESDI controller that had the same identical layout, π jumper and pin configuration as the "later" version of the Extendedπ ESDI controler. The one difference was an external connector on the endπ plate of the card that could hook up the IBM "Portable drive bay"π enclosure. The portable controller had the same connectors in the middle,π and I suspect that the "portable" controller was not any different fromπ the stock controller.π π In a non-standard configuration, I have run run 6 ESDI drives by havingπ a standard Extended ESDI controller in slot one and a PORTED controllerπ in slot 2. The portable controller even had to be jumpered to the π "secondary" position for installation. I also have tested the cardπ in the primary position (undocumented on the jumper setting in the manual,π but it looked JUST like the standard EE-ESDI card!) running the internalπ E310 drives, and it worked just fine. ππ Part Number, 08F3612.ππ I/O addresses used: [looks like secondary addresses to me! - MW]π Drives F, G and H - 0170 - 0177 and 0570 - 0577ππ DMA channels FIxed disk = 1 or 3 (set by program).π IRQ Fixed disk = 12 or 14 (set by program).ππ-------------------------πH.32 - IBM 9332 Disk drive information.ππ IBM 9332 DIRECT ACCESS STORAGE DEVICE π No Longer Available, for ordering by IBM US as of May 17, 1993.ππ The IBM 9332 "Athens" fixed disk drive has models with both IPI-3 π and SCSI interfaces. The only version attached to the RT was viaπ the differential SCSI interface. During boot time the AIX operatingπ system has the ability to download microcode to the drive.ππ The Models 240 and 440 drives are intended to be Rack-mounted π in a 9309 Rack Enclosure. The Models 250 and 450 are mountedπ in a standalone enclosure providing cooling and power.π π The pinout of the SCSI connectors on the back of the 9332π conforms to (then) proposed ANSI standard X3T9.2/82-2 Rev. 17B,π In accordance with that standard, the 9332 uses the 'Alternative 2'π style shielded connector, wired for differential SCSI devices.ππ NOTE: These are the only model 9332 drives issued with SCSI interfaces.π Other model 9332 drives use an IPI-3 interface.ππ Model................. 240,250 440,450π π Capacity in Mb 200.3 400.6π π Formatπ Number of Cylinders 1349 1349 π User 1346 1346π Reserved 3 3π π Access in Millisecondsπ Average 19.5 19.5π Track-to-Track 3.2 3.2π π Data Rate--Mb/secπ Maximum burst 4.0 4.0 π multisector 1.4-1.9 1.4-1.9 π π Rotation Speed RPM 3119 3119π π Latency inπ Milliseconds 9.6 9.6π π Number of Actuators 1 2ππ-------------------------πH.33 - Pin connections and tech. info on 6153, 6154 and 6155 monitors. ππ IBM 6153 Advanced monochrome Graphics adapter. - P/N 00F2357π π Screen: π - Etched surface for reduced glare.π - 720 dots horizontal by 512 scan lines vertical.π - 12 inch diagonal white phosphor monochrome CRT.π Video Signal:π - Two-level video.π - Maximum bandwidth of approx 25.7 Mhz.π - Compatible with standard TTL driver.π Horizontal Drive:π - Free running Oscillatorπ - Normally low, positive TTL pulseπ - Nominal horizontal frequency of 24.68 Khzπ - Retrace blanking time of 8.0 usec.π Vertical Drive:π - Free running Oscillatorπ - Normally low, positive TTL pulseπ - Nominal vertical frequency of 92 Khzπ - Nominal frame rate 46 Hz.π π Pinout:π Looking into female connector on the display cable. π (NOT into the adapter socket).π +---------------------------+π | 15 13 11 9 7 5 3 1 |π | 16 14 12 10 8 6 4 2 |π +-------------------------+π π 1 = Signal ground for vertical syncπ 2 = Vertical Syncπ 3 = Signal groundπ 4 = Reserved π 5 = Signal groundπ 6 = Reservedπ 7 = Signal ground for video.π 8 = Videoπ 9 = Signal groundπ 10 = Reserved π 11 = Signal groundπ 12 = Reserved π 13 = Signal groundπ 14 = Reserved π 15 = Signal ground for horizontal syncπ 16 = Horizontal Syncππ IBM 6154 Advanced Color Graphics adapter. - P/N 00F2350ππ Screen: π - Etched surface for reduced glare.π - 720 dots horizontal by 512 scan lines vertical.π - 14 inch diagonal shadow mask color CRT.π Video Signal:π - Two-level video for 6 video lines.π - Maximum bandwidth of approx 25.7 Mhz.π - Compatible with standard TTL driver.π Horizontal Drive:π - Free running Oscillatorπ - Normally low, positive TTL pulse.π - Nominal horizontal frequency of 24.68 Khzπ - Retrace blanking time of 8.0 usec.π Vertical Drive:π - Normally low, positive TTL pulseπ - Nominal vertical frequency of 92 Khzπ - Nominal frame rate 46 Hz.π - Retrace blanking time of 527.0 usec.π π Pinout:π Looking into female connector on the display cable. π (NOT into the adapter socket).ππ +---------------------------+π | 15 13 11 9 7 5 3 1 |π | 16 14 12 10 8 6 4 2 |π +-------------------------+π π 1 = Signal ground for vertical syncπ 2 = Vertical Syncπ 3 = R1 signal groundπ 4 = low order red bit (R1)π 5 = R2 signal groundπ 6 = high order red bit (R2)π 7 = G1 signal groundπ 8 = low order green bit (G1)π 9 = G2 signal groundπ 10 = high order green bit (G2)π 11 = B1 signal groundπ 12 = low order blue bit (B1)π 13 = B2 signal groundπ 14 = high order blue bit (B2)π 15 = Signal ground for horizontal syncπ 16 = Horizontal Syncπ π IBM 6155 Extended Monochrome Graphics Displayπ Low voltage 90 - 137 VAC - P/N 6848215π Hi voltage 180 - 259 VAC - P/N 6848216π Power Frequency 48 - 62 Hzππ Screen: π - 1024 dots horizontal by 768 scan lines vertical.π - 14 inch diagonal shadow mask color CRT.π Video Signal:π - 60 Hz non-interlaced.π Horizontal Drive: ??π Vertical Drive: ??ππ Pinout:π Looking into female connector on the display cable. π (NOT into the adapter socket).π +---------------------------+π | 15 13 11 9 7 5 3 1 |π | 16 14 12 10 8 6 4 2 |π +-------------------------+π π 1 = Signal ground for vertical syncπ 2 = Vertical Syncπ 3 = Reservedπ 4 = Reserved π 5 = Reservedπ 6 = Reservedπ 7 = Video 1 Signal ground.π 8 = Video 1π 9 = Video 2 Signal groundπ 10 = Video 2 π 11 = Video 3 Signal groundπ 12 = Video 3 π 13 = Video 4 Signal groundπ 14 = Video 4 π 15 = Signal ground for horizontal syncπ 16 = Horizontal Syncππ-------------------------πH.34 - 5081 Display technical information.ππ Horizontal Frequency 63.36 Khzπ Vertical Frequence 60 Hz non-interlacedπ Sync is on Green ππ Seperate Red, Green and Blue input and output connections.ππ Input is labeled with circles with arrows pointing INTO the circles.π Output is labeled with circles with arrows poinging OUT OF the circles.ππ Output is intended to be used with daisy changed slave displays.ππ Switch on back of display labeled "0 2 4" is called the "Gain" switch.π It changes the termination value used for the video signals in theπ display. Position 0 is used when hooking up a single display.ππ RPQ 8K1679 modifies this display to 1280x1024 capability forπ the model 016.π RPQ 8K1680 modifies this display to 1280x1024 capability forπ the model 019.ππ NOTE: The 1280x1024 resolution is not available from theπ standard megapel display adapter.π A Matrox PG1281/R display adapter and correspondingπ device drivers supported this adapter/display combination.ππ NOTE2: The megapel adapter will NOT work with the 5081 model 2π monitor.ππ-------------------------πH.35 - Jumpers and documentation on the Ungermann-Bass IBM ethernet board.ππ The IBM ethernet board was made by Ungermann-Bass, and is the exact sameπ board as Ungarmann-Bass model 2273A NIC Baseband adapter.π Ungarmann-Bass may be reached direct at 1-800-873-6381.π With the gold fingers towards your stomach, and the bracket on the rightπ with the electronics up, the IRQ jumpers are just above the gold contacts.π The Address jumpers W10 thru W13 are to the left of the prom about theπ middle of the board. The unlabeled jumpers (W14 on some boards) on theπ almost far left are the timer interrupt interval. The jumper connectsπ only one pair of pins.ππ 1 2 3 4π W14 . . . . . . . . position 1 = interrupt ever 9.1 msπ position 2 = interrupt ever 18.3 msπ position 3 = interrupt ever 36.6 msπ position 4 = interrupt ever 73.2 msππ IRQ jumpers are labeled:π IR3 IR4 IR5 IR6 IR7 IR2 <--- IR2 is really IRQ 9, all others are correct.π . . . . . X connect only one vertical pair of pins.π . . . . . X IRQ9 is the factory default.ππ I/O Memory address jumpers (Labled W10 thru W13)ππ W10 W11 W12 W13 π . . . . . . . . ππ XXXX = jumper is connected two adjacent pins together.π π X = Jumper is actually only jumpering ONE pin, the other sideπ X of the jumper is hanging off of the row of pins and isπ just there for future use.ππ W10 W11 W12 W13 ADDR W10 W11 W12 W13 ADDR ππ ======================== ====== + ====================== ======π X X X X | X X X π X . X . X . X . 080000 | X . X . X . XXXX 0C0000π ======================== ====== + ====================== ======π X X X | X X π XXXX X . X . X . 088000 | XXXX X . X . XXXX 0C8000π ======================== ====== + ====================== ======π X X X | X X π X . XXXX X . X . 090000 | X . XXXX X . XXXX 0D0000π ======================== ====== + ====================== ======π X X | X π XXXX XXXX X . X . 098000 | XXXX XXXX X . XXXX 0D8000π ======================== ====== + ====================== ======π X X X | X X π X . X . XXXX X . 0A0000 | X . X . XXXX XXXX 0E0000π ======================== ====== + ====================== ======π X X | X π XXXX X . XXXX X . 0A8000 | XXXX X . XXXX XXXX 0E8000π ======================== ====== + ====================== ======π X X | X π X . XXXX XXXX X . 0B0000 | X . XXXX XXXX XXXX 0F0000π ======================== ====== + ====================== ======π X | π XXXX XXXX XXXX X . 0B0000 | XXXX XXXX XXXX XXXX 0F8000π ======================== ====== + ====================== ======ππ-------------------------πH.36 - RT Token Ring card jumpers and addressing.π π The Token-Ring card has a 9-pin female connector, and usually a greenπ dot sticker on the metal plate, but not always. π The adapter card had two versions, early and late.ππ For both versions, with J1 and J2 to the left, indicates no proms areπ installed in the sockets shown by the XXX's.π π ----------------------------------------------------- ---π | ... ... +----------+ ... ||π | J1 J2 |small card| J5 ||=| 9-pinπconnectorπ | +----------+ ||=|π | XXX || π | XXX || early cardπ | XXX YYYZZZ J3 ||π --------------------------+ +--+ +----+|π |_____| |____________| |π π ----------------------------------------------------- ---π | ... ... ... ... ||π | J1 J2 J5 J6 ||=| 9-pinπconnectorπ | ||=|π | XXX || π | XXX || late cardπ | XXX YYYZZZ J8 ||π --------------------------+ +--+ +----+|π |_____| |____________| |πππ During installation, make sure that the interrupt/DMA level does notπ conflict with any other card, and that the I/O and DMA address jumpersπ match, in accordance with the devices settings. Note how the address andπ DMA settings travel together. ππ I/O range DMA J5 J6π 01c0-01cf 5 up upπ 0140-014f 6 up downπ 11c0-11cf 7 down up (see note below)π 11d0-11df 3 down down (can conflict with serial port 1)ππ The 11c0 address cannot go in slot 8 of the tower (6150) model 25 orπ slot 5 of the desktop (6151) model 10. DMA channel 7 conflicts withπ use of the megapel adapter. DMA channel 3 conflicts with serial port 1π (S1) on the planar. Only a problem if you have that port defined viaπ devices, otherwise you can use DMA channel 3.ππ The early version of the RT Token ring card can only go at ONE of twoπ possible addresses. It is recognized by having a daughter card pluggedπ on it about in the middle of the card (sometimes).π It also has a J1 and J2 jumpers in upper left and a J3 jumper in theπ middle of the card along by the gold fingers, and a J5 address jumper only.π I personally have never seen the 'early' version of the RT Token card.ππ See page 1-21 of the 'User Setup Guide and Options Installation manual'π for more complete matrix of interrupt/DMA conflicts.ππ-------------------------πH.37 - What are the differences between the 032, APC and EAPC processor types.ππ The standard 032 processor in the original models of the RT had theπ following features:π * 170 Nanosecond processor cycle time.π * 16 32-bit general purpose registersπ * 16 32-bit system control registers, including:π - countdown timer registerπ - exception control registersπ - interrupt request buffer registerπ - instruction address registerπ * 118 2 and 4 byte instructions with storage, branch, control, andπ integer math, including multiply and divide step instruction.π * Memory Managment Unit with translation look-aside buffers, andπ address translation including:π - 40-bit virtual address.π - 256 Megabyte memory segments.π - Multiple independent virtual address spaces.π - address space size of 4 gigabytes.π - demand paging.π - page size of 2048 or 4096 bytes.π - Memory protection.π - Real memory addressability of up to 16 Megabytes.π - Hardware assist for load real address ππ The Advanced processor (APC) has these enhancements to the originalπ processor. π * 100 Nanosecond processor cycle time.π * Overlapped Load and Store operations.π * Several instructions are serialized to allow for better memory and I/Oπ operations.π * Additional exception control register information.π * Instruction prefetch, and 16 byte loop detection.π * MMU allows multiple outstanding load and store requestsπ * On board 20 Mhz MC68881 floating point processor.π - Trigonometrice and transcendental functions.π - Seven different data types and conversions.π * I/O interface enhancements.ππ The Enhanced Advanced processor (EAPC) has these changes from theπ original and APC processor.π * 80 Nanosecond processor cycle time.π * 16 Megabytes main memory on the processor board.π * Faster operation of the MMU.π * MC68881 and one I/O chip removed.π * Intended to be used with an Advanced Floating Point Accellerator.π π-------------------------πH.38 - Speed and capability of the Floating Point options forπ the RT computers. FPA, MC68881, AFPA.ππ All models of the RT systems running AIX can run with no floating π point hardware assist and provide for simulation routines for floatingπ point operations.ππ The standard Floating Point Accellerator (FPA) contains instructionsπ for general floating point operations, but does not include directπ hardware support for trancendental functions (sin, cos, tan, ect..).ππ The model 115 and 125 computers, with the Advanced Processor cardπ include a Motorola MC68881 chip running at 20 Mhz. This chip isπ faster than the FPA, but not as fast as the Advanced Floating π Point Accellerator (AFPA).ππ In genral the FPA is slower than the MC68881, which in turn isπ slower than the AFPA. The FPA advantange is it can run in π parallel with the processor, providing some overlap of operations.ππ-------------------------πH.39 - Where can I obtain a replacement battery?ππ The battery located under the front cover of the tower model RT next toπ the keylock, and inside the case on the desktop unit behind the keylockπ mounting bracket. It maintains the real-time clock for the system whenπ the power is off. It also maintains the non-volatile ram (NVRAM) contents.π The NVRAM contains several items, among which are:π the last error record, and the current list of boot devices.ππ ==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==π Submitter: Matt "C P." Rush <mrush@ecst.csuchico.edu>π Subject: RT batteries through Radio Shackπ Date: 26 Oct 93 21:10:43 GMTππ Just in case anyone out there needs to replace the battery inπ their RT, they can be Special Ordered through your local Radio Shack.π Amazingly, the IBM-RT is actually listed in their battery cross-π reference, but in case YOUR Radio Shack is lame,π the part no. is: CLB-5293/Wππ The painful thing is the PRICE: $15.99. I decided that itπ wasn't that bad to do a 'date' command every time I booted up. :-)π ==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==**==ππ My notes here..π This is average price for a lithium computer battery.π The batteries on some RT systems that I have used, have lasted as long asπ 6 years before needing replacement, others are still going strong,π so it is a relatively small price comared to other replaceables.ππ Someone asked:π > Are these batteries any different from garden-variety AT batteries?ππ There IS NO one common AT battery. Some are 3V some a 6V. Some are plugπ in, some snap in more traditional battery carriers.ππ The RT battery (IBM P/N 6299201) for the RT is 6.8 volts!ππ Last I heard, IBM wanted $25.00 US for a RT battery. The Radio Shackπ battery sounds like a good deal, if it is a proper replacement. π I have seen FIRES start in an RT that had an improper battery!ππ At least one user has reported using AA batteries in a traditionalπ carrier.π As always.. caveat emptor, user beware, your milage may vary, ect..π - MW.ππ-------------------------πH.40 - RT 6157 tape interface card pinout and drive information.ππ> I have a type 6157 RT tape drive here, and I'm trying to find out whatπ> sort of interface it uses. It's the 45 meg 1/4" cartridge drive, andπ> popping it open revealed a Cipher modem 540 (or 640?) tape mechanism.ππDepending on the model of the drive, it is either a model 6157 (plain,πwith no dash) 60 Mb capabile (QIC-24 format tapes) drive or a modelπ6157-2, 150 Mb drive (QIC-120 or QIC-150 format tapes) on write/read.ππBoth models can read QIC-24 only the model 1 (no dash) can write QIC-24.π πThe interface is used with either the IBM RT interface card, or aπcompatible vendor QIC-02 interface. This is a industry standard interface,πso you may be able to find another interface card that will support it.πIBM used this drive on several pieces of equipment besides RT systems:π6152 (PS2/60), and AS/400 and mabey others.ππI have never examined the internal works on one, so I am not sure of theπpinout of the internal connector used between the IBM 37-pin cableπand the internal transport. I have no information on the actualπtransport itself. TANDON or CIPHER made the drives for IBM, and lotsπof other vendors.ππThe orignal cable terminates in a 37 Pin Male D-Shell connector.ππ Signal name Signal pin Matching ground pinπ Cable shield 19 1π Parity Bit (odd) 20 2π Bit 7 21 3π Bit 6 22 4π Bit 5 23 5π Bit 4 24 6π Bit 3 25 7π Bit 2 26 8π Bit 1 27 9π Bit 0 28 10π On-Line 29 11π Request 30 12π Reset 31 13π Transfer 32 14π Acknowledge 33 15π Ready 34 16π Exception 35 17π Direction 36 18π Reserved 37ππSignal Interface: QIC-02 Industry standardπTransfer Rate 86.7K bits per second (model-1)πTape Speed 90 Inches per secondπInternal data buffer 2K bytesππI have the IBM schematics on the RT interface card.ππMy notes: (take with a minor grain of salt, I have not gotten out a π scope or meter on this..)ππ * Signal documentation leads me to belive all signals are active low.π (-Online..ect..)π * All grounds in pins 1-18 are attached to internal ground on the π interface card.π * All DATA interface leads appear to be driven by 74LS640's pulled upπ to +5v by a 220/330 Ohm DIP resistor pack.π Thus... TTL level interface.ππ * Status leads are driven/recived by a 74LS244 constantly enabled.π π * Input status leads: (From drive to interface)π Exception, Direction, Ack, Readyππ * Output status leads: (From interface to drive)π Request, Reset, Transfer, Onlineπ π * The IBM interface card uses a 8042 mated to a 82S105 for interfaceπ controller duties, plus lots of 74LS support chips, plus twoπ TMM 2016 ram chips.ππ-------------------------π9.0 Credits, Acknowledgements and other information.ππX.1 - Acknolowgements and copyright information.ππThis file is provided AS IS with no warranties of any kind as to theπusefullness/correctness of these procedures/questions. The authorπshall have no liability with respect to the infringement of copyrights,πtrade secrets or any patents by this file or any part thereof. In noπevent will the author be liable for any lost revenue or profits orπother special, indirect and consequential damages.ππIBM, AIX, AT, XT, RT, RT PC and RT Personal Computer are trademarks ofπ International Business Machines Inc.πUNIX is a registered trademark of American Telephone & Telegraph in theπ United States of America and other countries.πAny other trademarks not specifically mentioned are owned by their respectiveπ companies.ππX.2 - AIX/RT software FTP site(s).π π Anonymous ftp site for AIX-2.2.1 softwares: ftp-rt.matheth.polymtl.caπ Fsp site (port 21) for AIX-2.2.1 softwares: ftp-rt.matheth.polymtl.caπ Gopher site (port 70) for AIX-2.2.1 softwares: gopher.matheth.polymtl.caππ The FTP site information above is maintained by: =======================π Francois Normant | Internet: fn@mathappl.polymtl.caπ Ecole Polytechnique - Mathematiques | Compu$erve: 75210,525π C.P. 6079 - succursale centre ville | Tel. (514) 340-5968π Montreal - Quebec - Canada - H3C 3A7 | Fax. (514) 340-4463ππX.3 - Credits:π The following people have either submitted articles for π inclusion, made suggestions, or had parts of old articles π included within re-arranged information.π If you want your name dropped please let me know.ππMarc Brett <ltso@london.waii.com>πJon BrinkmannπJohn Carr <jfc@athena.mit.edu>πDavid L. Crow <crow@austin.ibm.com>πBjorn Engsig <bengsig@dk.oracle.com>πeliot <eliot@engr.washington.edu>πMike Johnson <mike@neutron.amd.com>πJohn R. Moore <jrm@lgc.com>πFrancois Normant <fn@mathappl.polymtl.ca>πGerald Oskoboiny <gerald@vnet.IBM.COM> πRichard Rogers <rrogers@chinet.chinet.com>πMatt Rush <mrush@ecst.csuchico.edu>πRussell Schulz <russell@alpha3.ersys.edmonton.ab.ca>πDavid Snearline <davids@engin.umich.edu>πJohn Tracey <jtracey@cse.nd.edu>πAndrew Yeomans <ayeomans@vnet.ibm.com>πPim Zandbergen <pim@cti-software.nl>ππ====================== end of FAQ ibm-rt-faq/hardware =========================ππAIX..... NOT just another UNIX.πMark Whetzel | My own RT system.. My own thoughts..πDOMAIN: markw@antimatr.hou.tx.us | IBM RT/135 running AIX 2.2.1 πUUCP ..!menudo!lobster!antimatr!markw | comp.sys.ibm.pc.rt FAQ maintainerπ
