Mezzanine Options Available With One Io4; Table D-1 Optional Mezzanine Board Descriptions - Silicon Graphics POWER CHALLENGE User Manual

CC synchronization join counter
Integral SCSI controller 0: Version WD33C95A
Disk drive: unit 4 on SCSI controller 0
Disk drive: unit 3 on SCSI controller 0
Disk drive: unit 2 on SCSI controller 0
Disk drive: unit 1 on SCSI controller 0
VME bus: adapter 0 mapped to adapter 3
VME bus: adapter 3
Integral IO4 parallel port: Ebus slot 5
The GCAM board is used only on POWER Challenge systems that
Note:
have the visualization console (Extreme) option installed.
Each system is slightly different, but all systems have at least one IO4
installed. The number of IO4s installed in your system determines the
number of HIO mezzanine option boards it can support. It also determines
the type of mezzanine options you can order. The VCAM or GCAM on the
first IO4 precludes you from using "long" mezzanine boards. Long
mezzanine boards stretch nearly to the backplane and do not fit on the IO4
when a VCAM or GCAM is installed. Table D-1 describes some of the HIO
mezzanine option boards and their lengths.
Table D-1 Optional Mezzanine Board Descriptions
Board Name
Flat Cable Interface
Flat Cable Interface
Three-Channel SCSI

Mezzanine Options Available With One IO4

Figure D-1 shows the two possible configurations of the Challenge equipped
with a single IO4. In the standard server configuration, the IO4 uses a VCAM
and the IO4 may use up to two optional short mezzanine boards. With the
POWER Challenge visualization console option and graphics, use of the
GCAM allows only one optional short mezzanine board.
Mezzanine Board Configurations
Size
Long
Short
Short
Number of Connectors
2
1
3
127