User`s manual

CBI-1010
NOTE CMD strongly recommends the use of differential mode
in systems employing transfer rates in excess of five
megabytes
per second. If you have no alternative but to
use single-ended mode, the
SCSI -3 proposal recom-
mends that the total length of the SCSI cable be no
longer
than three meters (about 9.9 feet) at 10 megabytes
per second. See page 2-6 for more details.
SCSI Terminator Power
Typically the initiator (SCSI host adapter) supplies terminator power,
+5-volts, to the
SCSI bus. Because the CBI-lOlO is considered an initiator to
the
SCSI devices, the terminator power option of the CBI-lOlO needs to be
enabled.
The
CBI-lOlO supplies terminator power to the TERMPWR pins of single-
ended/ differential SCSI connector (JE) through a polyswitch and jumper
block,
WB. (Check Tables 5-5 and 5-6 for pin assignments.)
SCSI 10 for Host Adapter (Initiator)
Each device on the SCSI bus requires a unique SCSI Identification address
(0 to 7). SCSI ID 7 has the highest priority on the bus and SCSI ID a has the
lowest priority.
The
CBI-lOlO plays the role of initiator and is factory configured to SCSI ID 7.
To alter the Host Adapter SCSI ID, change NOVRAM settings through the
On-Board
RS-232 Utility given in Chapter 4.
CBI-1 010 Installation Procedures
1 Make sure the system is powered OFF. Make sure the CBI-IOIO is
configured as given in the section, "Hardware Configuration."
WARNING Make sure you are wearing anti-static wrist straps.
2 Choose a correct slot for installing the CBI-lOlO by reading the section
"System
Node ID."
3 Install the
CBI-lOlO in the correct slot with the ZIF connectors set into
the system's backplane; push the ZIF handle down to clamp the
CBI-IOlO into place.
3-10 Installation