Branch
Office System
Chapter 5 - Replaceable Units
Bus Controllers
Front Control/Display Panel
Auxiliary Junction Panel
Power Supply
Multiplexor Panel
BOS System Fan
Hard Disk Drives
Floppy Disk Drive Replacement
CD ROM Unit Replacement
Installing Bus Controllers in a BOS System
All BOS Systems contain a passive ISA compatible backplane consisting of 1 group of 2 slots and 4 groups of 1 slot, for a total of 6 slots. (A group consists of a single ISA backplane slot, or ISA backplane slots electrically connected together.)
The groups are identified as group "1", group "2", etc. on the rear panel silkscreen.
When installing a Cubix BC Series processor, the BC Series board should be installed in the lowermost slot of a multislot group.
* Bus controllers equipped with a 486 DX2/66 processor must have a heat sink installed on the IC. This may limit the usefulness of the adjacent slot. Contact Cubix Customer Service Support System for assistance.
Installation/Replacement Instructions:
1. Turn off AC power. Remove AC power cord.
2. Remove the cover from the unit.
3. Disconnect the 40-pin ribbon cable (hard disk drive data cable) from the top edge of the BC processor being replaced.
4. Disconnect the 34 and 26 pin ribbon cables (floppy disk drive data and Video/keyboard cables) from the processor being replaced.
5. If replacing an existing BC Series processor, disengage the retaining screw from the BC end bracket and remove the BC board.
6. If adding a new BC Series processor, disengage the screw securing the blank end bracket from the rear I/O panel in line with the vacant slot desired. Remove the end bracket.
7. Install one Cubix BC Series bus controller board into each group as desired. Secure each board with the screw located in the end bracket.
8. Connect the cables between the BC Series board and the multiplexor panel. The multiplexor panel connectors are documented in Appendix F of this manual; the BC Series connectors are defined in the documentation provided with the BC Series processor.
9. Verify that a monitor and keyboard are connected to the BOS multiplexor. Reconnect AC power cord. Turn on AC power.
10. Run the setup program on each BC Series processor. Refer to the setup documentation provided with the BC board.
11. Turn off the AC power.
** WARNING ** Only boards with "captive" screws (screws that cannot be removed or fall out) in the end brackets should be installed in this system. Contact Cubix to order captive screws to mount on non-Cubix provided boards.
12. Install any other peripheral boards.
13. Reinstall cover.
(Located on the front left side of the system)
Replacement Instructions:
1. Turn off AC power and remove the AC power cord.
2. Remove the top cover.
3. Remove the five screws on front of the Control/Display panel.
4. Disconnect the cable on the Control/Display panel.
5. Install new Control/Display panel in reverse order.
(Located on the rear immediately to the right of the end brackets)
To install an auxiliary junction panel:
1. Turn off power to the Cubix BOS.
2. Remove the top cover.
3. Remove six screws holding the blank panel at right side of rear I/O panel.
4. Using the same screws, attach the new auxiliary junction panel to rear I/O panel.
To install Cubix Adapter Boards into the Auxiliary Junction Panel (refer to the adapter board's documentation for installation instructions):
1. Using the screws on the connector housing on the Cubix I/O adapter board, attach the adapter board to the auxiliary junction panel directly alongside the processor card it will service.
2. Attach the I/O adapter board to the internal header on the Cubix processor board. Refer to the documentation provided with the processor board for installation instructions.
Replacement Instructions:
1. Turn AC power off at the rear of the BOS.
2. Remove AC power cord.
3. Remove the top cover.
4. Disengage power supply safety cover.
5. Remove all (up to nine) cables from the power supply.
6. Remove three torx screws securing power supply bracket to the chassis and remove power supply.
7. Remove five torx screws securing power supply board to the bracket.
8. Install new power supply in reverse order.
F Wait approximately one minute after powering down the power supply to permit all components to discharge before removing the power supply.
Replacement Instructions:
1. Turn off power and remove power cord from the subsystem.
2. Remove the top cover.
3. Disconnect all BC processor cables from multiplexor panel.
4. Disconnect the 10- and 26-pin ribbon cable (if present) from IES.
5. Disconnect the 34-pin ribbon cable from shared floppy disk drive.
6. Disconnect battery and speaker cables from multiplexor panel.
7. Remove the four 6-32 screws securing the multiplexor panel.
8. Remove old multiplexor panel.
9. Install new board in reverse order.
Replacement Instructions:
1. Turn off AC power.
2. Remove AC power cord.
3. Remove top cover.
4. Remove power supply safety cover.
5. Disconnect all (up to nine) cables from power supply assembly.
6. Remove the four screws securing power supply mounting bracket.
7. Remove four screws and nuts securing fan and fan guards to rear panel.
8. Remove old fan.
9. Install new fan in reverse order.
When adding a disk drive, install the drive in the position immediately to the left of the leftmost installed drive.
Installation/Replacement Instructions:
1. Remove the top cover.
2. If replacing a drive, disconnect the power connector and the ribbon cable from the drive.
3. Remove the top Disk Drive Support.
4. Remove the old drive.
5. If replacing a drive, remove the three screws and spacers located on the old drive and put two locating screws and spacers on the bottom edge and one on the top edge of the new drive.
6. Install the new drive into the drive support bracket to the left of the leftmost installed hard disk drive. Seat the drive by placing the two lower locating screws into the holes in the bottom disk support bracket.
7. Replace the top Disk Drive Support and secure.
8. Connect the appropriate drive power and data cables. Connect the hard drive data cable directly to the BC Series board. Connect the power cable to the power source on the BOS group receptacle that the drive will service.
9. Replace top cover.
BOS System Reconfiguration
To reconfigure the BOS System, contact Cubix to purchase the BOS Reconfiguration kit if you do not already have one. DO NOT begin this without the reconfiguration kit. Refer to Appendix A for the summary of configuration options.
1. Choose configuration.
2. Turn off power to subsystem and remove power cords.
3. Remove top cover.
4. Insert shunting boards in each shunt connector appropriate for the desired configuration. Refer to Figure 5-1. Example: to configure three groups, one with 3 slots, one with 2 slots, and one with 1 slot, requires shunting boards in the shunt connectors between slots 2&3 and 4&5.
! Shunting boards must be pushed down firmly until completely seated. Be sure there are no shunting boards left in incorrect slots from previous configurations.
5. Install the BC Series Processor for each group desired.
! Processor should be installed in the leftmost slot of each group in multi slot groups (i.e. away from the power supply).
6. Install hard disk drives if desired.
7. Connect the processor cables. See the BC Series Hardware Installation Guide for cable installation instructions.
8. Install any other peripheral boards.
9. Replace top cover.
Installation of IES Module in BOS
1. Turn off AC power.
2. Remove AC power cord.
3. Remove top cover.
4. Remove screw from blank end bracket in slot labeled IES.
5. Install IES Module board into slot IES.
6. Tighten retaining screw on end bracket.
7. Connect 10 pin ribbon cable from J20 on multiplexor to J2 on IES module (check for proper polarity).
8. Connect 26 pin ribbon cable from multiplexor J21 to J3 of IES. (confirm proper polarity).
9. Install Cubix Data Highway cable into RJ11 connector IES end bracket. Plug the other Data Highway cable or terminator into the other RJ11.
10. Connect 4 pin locking Molex cable from J15 of IES to J7 of power supply.
11. Verify all cables are installed properly and cables are secure. See installation section, System Reconfiguration, if subsystem needs reconfiguration.
12. Connect AC power cord.
13. Replace top cover.
14. Turn on AC power switch.
15. Continue with the IES software installation instructions in the IES Supervisory System Guide to Operations manual.
1. Turn off AC power.
2. Remove AC power cord from the rear of the BOS System.
3. Disconnect all cables from installed hard disks.
4. Remove the top hard disk support bracket.
5. Remove all installed hard disks, noting which position each was in.
6. Disconnect the multiplexed floppy power cable from J8 of the power supply.
7. Remove the multiplexed floppy data cable from J29 of the multiplexor panel.
8. Remove four screws securing the bottom disk support bracket.
9. Lift out the lower disk support bracket and floppy disk.
10. Remove four screws securing the floppy disk support bracket to the lower disk support bracket.
11. Remove three screws securing the floppy drive to the floppy disk support bracket.
12. Remove the power and data cables from the disk drive.
13. Attach the cables to the replacement drive.
14. Attach the replacement drive to the floppy disk support bracket using the three screws removed in step 11.
15. Reassemble in reverse order.
1. Turn off AC power.
2. Remove AC power cord from the rear of the BOS System.
3. Disconnect all cables from installed disks (both hard and floppy).
4. Remove the top hard disk support bracket.
5. Remove all installed disks, noting which position each was in.
6. Disconnect the CD ROM power cable from J8 of the power supply.
7. Remove the CD ROM SCSI data cable from the CD ROM controller.
8. Remove four screws securing the bottom disk support bracket.
9. Lift out the lower disk support bracket and CD ROM.
10. Remove four screws securing the CD ROM support bracket to the lower disk support bracket.
11. Remove three screws securing the CD ROM drive to the CD ROM support bracket.
12. Remove the power and data cables from the CD ROM drive.
13. Attach the cables to the replacement drive.
14. Attach the replacement drive to the CD ROM support bracket using the three screws removed in step 11.
15. Reassemble in reverse order.
Installing SCSI Controllers in a BOS System
Installation/Replacement Instructions:
1. Turn off AC power. Remove AC power cord.
2. Remove the cover from the unit.
3. If replacing an existing SCSI controller, disconnect the 50 pin ribbon cable and disengage the retaining screw from the BC end bracket and remove the BC board.
4. If adding a new SCSI controller, disengage the screw securing the blank end bracket from the rear I/O panel in line with the vacant slot desired. Remove the end bracket.
5. Install one SCSI controller board into the group. Secure each board with the screw located in the end bracket.
6. Connect the 50 pin ribbon between the SCSI controller and the CD ROM drive as directed in the CD ROM drive manual.
7. Reconnect AC power cord. Turn on AC power.
8. Run the setup program for the controller. Refer to the setup documentation provided with the SCSI controller.
9. Turn off the AC power.
10. Reinstall cover.
This document, and all Web contents, Copyright © 1997
by Cubix Corp., Carson City, NV, USA.