User guide

Attach one of the following cables to a connector on the breakout cable if
you require longer cable lengths: BC22F-10, BC22F-25, or BC22F-50. The
peripheral you are using may require a null-modem extension cable. See
the peripheral documentation or contact your Digital Sales representative
for information on the correct null-modem cable to use.
• DSSI hard disk drives, including the following:
– RF31T
– RF35
– RF36
• SCSI storage devices, including the following:
SCSI hard disk drives:
– RZ25L
– RZ25M
– RZ26
– RZ26L
– RZ28
SCSI removable media devices:
– TLZ06/TLZ07 tape drive
– TZK10/TZK11 (QIC) tape drive
– TZ30 tape drive
– RRD42 compact disc drive
– RRD43 compact disc drive
– RX23 diskette drive
– RX26 diskette drive
• Digital Storage Systems Interconnect (DSSI)– The KA53/KA54 CPU
module contains one DSSI bus connector that is dedicated to the mass
storage devices in your system.
A DSSI connector provides a path to the DSSI bus through which the CPU
can communicate with DSSI devices.
The DSSI bus has the following characteristics.
– A 4-Mbytes-per-second bandwidth
Hardware Options 4–3