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Volume I: Slot Assignment

Board Installation Notes

Backplane Slot Assignment Charts

Each system chart lists the PCB slot assignments in order of descending priority. In the charts A,B,C... indicates the preferred location for a specific board. An A is the most preferred location. An a indicates that a board requires more than one slot if Memory, Frame Buffer, or other options are installed. Multiple capital letters (AA, BBB...) indicate a board requires more than one slot. Boards with multiple part numbers are shown with a footnote (Sun 3004 CPU 1 ) and are listed in tables after each grouping of slot assignment charts.

Installing VMEbus Boards

  1. Refer to the Backplane Slot Assignment Charts to determine where to install additional boards.
  2. Move boards in the cardcage as required.
  3. Configure backplane jumpers for BG3 and IACK. The IACK jumper for the last slot is not present on some backplanes. It is not needed.

Removing VMEbus Boards

  1. Refer to the Backplane Slot Assignment Charts to determine if other boards in the cardcage require repositioning.
  2. Configure backplane jumpers for BG3 and IACK.
  3. Install an air restrictor and the external filler panel in any unused slot.

Sun-3/160

  1. Sun-3/160 systems using the Pioneer or ETA Power Supply require FCO 807-0068 to upgrade to a Sun-3/260, Sun-3/460, Sun-4/260, or Sun-4/360.
  2. Sun-3/160 systems manufactured prior to July 1987 (serial number 724E2223) require FCO 808-0067 to upgrade to a Sun-3/260, Sun-3/460, Sun-4/260, or Sun-4/360.

Sun-3/180, Sun-3/280, and Sun-4/280

Sun-3/180, Sun-3/280, and Sun-4/280 systems manufactured prior to November 1988 require FCO 807-0073 to upgrade to a Sun-3/480 or a Sun-4/380.

Sun-3/260 and Sun-4/260

  1. Do not install an air restrictor in Slot 2.
  2. Do not install non-memory board options in Slots 2 through 5 using the standard left to right sequence. If possible, leave Slot 2 empty for system cooling.

Sun-3/470

  1. Remove Jumpers P10, P11, P12, and P13 from the 501-1598 Backplane when the Sun 3400 board set is installed.
  2. Remove Jumpers P10, P11, P12, and P13 from the 501-1832 Backplane when the Sun 3400 board set is installed.

Sun 3200, 3400, and 4200 ECC Memory

  1. 501-1092 or 501-1117 Backplanes. Install the first Memory board in Slot 6. Install 220/270 Terminating Resistor 120-1613-01 at location F-34 or F-54 on the Memory board.

    Remove the Terminating Resistor from location F-34 or F-54 on Memory boards installed in Slots 2, 3, 4, and 5.

  2. 501-1439, 501-1598, or 501-1832 Backplanes.
    Install the first Memory board in Slot 1. Install 220/270.

    Terminating Resistor 120-1613-01 at location F-34 or F-54 on the Memory board.

    If placement results in Memory boards on both sides of the Sun 3400 CPU, remove the Terminating Resistor at location O-23 (U1411) on the CPU. Install Terminating Resistors on Memory boards in Slot 1 and Slot 7.

  3. Remove Jumpers P10, P11, P12, and P13 from the 501-1598 Backplane when the Sun 3400 board set is installed.

  4. Remove Jumpers P10, P11, P12, and P13 from the 501-1832 Backplane when the Sun 3400 board set is installed.

GP2

The GP2 does not function with the Sun-2 Color board, Sun-3 Color board, or the Graphics Buffer.

CG5 with GP+ or GP

  1. The CG5 P2 bus must be disabled (SW3300-5, OFF).
  2. The CG5 must be installed in slots that do not share the P2 bus with the GP or GP+. Signals provided by the CG5, but not used by the GP or GP+, may cause contention.

CG5 with GP2

  1. The CG5 P2 bus must be enabled (SW3300-5, ON).
  2. The CG5 must be installed in cardcage slots that share the P2 bus with the GP2.

CG5 without GP2

The CG5 P2 bus must be disabled (SW3300-5, OFF).

CG9 with GP2

  1. The CG9 P2 bus must be enabled (SW3-1, OFF).
  2. The CG9 must be installed in cardcage slots that share the P2 bus with the GP2.
  3. This configuration is not supported with the TAAC-1.
  4. The CG9 is not supported without the GP2.

TAAC-1

  1. The TAAC-1 requires three slots. Install backplane jumpers BG3 and IACK in all three slots.
  2. Sun-3/160 systems require FCO 807-0071, if the TAAC-1 is installed.
  3. The TAAC-1 is not supported with the CG9 and GP2 GXP Graphics Options.

Xylogics 450 Disk Controller

  1. Do not mix the Xylogics 450 with the Xylogics 7053.
  2. Xylogics 450 is not supported with the 900MB Disk Drive, and cannot be mixed with the Xylogics 451 in any 900MB Disk Drive configuration.

Xylogics 7053 Disk Controller

  1. Do not mix the Xylogics 7053 with the Xylogics 450.
  2. Systems with Sun-2 SCSI, 501-1138, or Sun-3 SCSI, 501-1217, may mix a maximum of one Xylogics 451 and two Xylogics 7053s.
  3. Systems with Sun-2 SCSI, 501-1167, may mix a maximum of one 451 and two 7053s.
  4. Systems with Sun-2 SCSI, 501-1149, or Sun-3 SCSI, 501-1170, may mix a maximum of one Xylogics 451 and one Xylogics 7053.
  5. The Sun-4/470 and Sun-4/490 may mix a maximum of one Xylogics 7053 and one ISP-80 IPI-2 controller.

Tapemaster Tape Controller

  1. The Tapemaster controller is not supported in any Sun-3x or Sun-4 system.
  2. Support for the Tapemaster controller was removed from the Sun 3200 CPU Boot EPROM revision 3.0.

ALM-1, ALM-2, and MCP

  1. The ALM-2 and MCP share the same base address and interrupt vector.
  2. The ALM-1 shares the same interrupt vector as the ALM-2 and MCP.
  3. Because of the conflict with the interrupt vector, no more than four ALM-1, ALM-2, or MCP boards can be installed at the same time.
  4. The ALM-1, ALM-2, or MCP boards must be installed in sequential address order, or a conflict with the interrupt vector may result.
  5. The maximum combination of ALM-2 and MCP boards allowed is eight. When mixing ALM-2 and MCP, the MCP must be addressed as Boards 1, 2, 3, and 4.
  6. The maximum number of MCP boards is four.
  7. The maximum number of ALM-2 boards is eight.

ALM-1 501-1157 (Pedestal Systems)

The ALM-1 must be installed in Slots 11 and 12. Install Backplane Jumpers BG3 and IACK in Slot 11. Remove Backplane Jumper BG3 from Slot 12.

MAPkit

  1. The MAPkit requires two slots. Remove Backplane Jumpers BG3 and IACK from the slot that contains the MAPkit board nearest to Slot 1. Install Backplane Jumpers BG3 and IACK in the second slot.
  2. The MAPkit data throughput rate may be affected if a Tape Controller or a Disk Controller is installed in an unused slot between the CPU and the MAPkit.

SunLink Channel Adapter

  1. The SCA requires two slots. Remove Backplane Jumpers BG3 and IACK from both slots.
  2. Installing a 1/2" Tape Controller or an SMD Controller in an unused slot between the CPU and the SCA option may affect the SCA data throughput rate.

12-Slot Office Pedestal Backplane 501-1382

A cutout in the upper left corner of the 501-1382 Backplane allows the DC Wire Harness to be routed from the rear of the Backplane to the front of the Peripheral Tray.

VME to Multibus Adapter Board

Use Adapter board subassembly 501-1054-04, Rev. A, or greater, to avoid signal contention on the P2 bus. This change was effective in September 1985 (ECO 1850).

Systech MTI-800, MTI-850, MTI-1600, and MTI-1650

Tables A and B provide reference information for Systech boards packaged in kits.

Table A identifies the ALM boards in a Sun PCB kit. Columns 2, 3, and 4 provide the Sun PCB part number, a board description, and the Systech part number for individual boards within each set.

Table B describes the boards in a Sun VME assembly kit. This assembly contains an ALM board set, a VME-Multibus Adapter PCB, and frame. Column 1 lists the Sun VME assembly part number. Columns 2 and 3 provide the part numbers and a description of the ALM channel and the VME-Multibus Adapter PCB in the Sun VME assembly kit. Only three of the PCB kits from Chart A are used as VME options. Systech discontinued the 800/1600 series when the 850-1650 series was introduced. Replace the entire VME assembly upon failure of any component in these VME options.

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