Connecting External Scsi Devices - Digital Equipment DEC 2000 500 AXP User Information

Connecting External SCSI Devices

Connecting External SCSI Devices
This section describes how to determine whether you need to
Summary
connect external SCSI devices to the system. It also describes
the information that you need to order these external SCSI
devices from your Digital sales representative.
Deciding on The system unit contains at least one SCSI option board. This
External SCSI SCSI option board enables the system to communicate with up
Devices to seven SCSI drives and the PC/AT-standard interface diskette
drive installed in the system. If you require more than seven
SCSI devices, you must install an additional SCSI option board.
The additional SCSI option board provides another SCSI bus.
You can connect an additional six internal SCSI devices to this
bus, providing a maximum of 13 internal SCSI devices. You can
also connect an external SCSI option to the external port on the
second SCSI option board.
External SCSI You can install up to four SCSI option boards within the system.
Each SCSI option board supports up to seven SCSI devices.
Drive Support
Therefore the system supports up to 28 SCSI devices.
The first two SCSI option boards provide support for up to 13
internal devices. If you have less than seven internal SCSI
devices connected to either of these SCSI option boards, you can
connect external SCSI devices to the external SCSI port on that
option.
The third and fourth SCSI option boards each support an
additional seven external SCSI devices.
Ordering Digital provides a range of external SCSI devices, including disk
SCSI Devices, drives, tape drives, CD-ROM drives, and accessories for these
devices. Digital also provides a range of SCSI option boards that
Options, and
allow you to connect these devices externally to the system. To
Accessories
get information on the SCSI devices, options, and accessories
that are currently supported or to order these items, you must
contact your Digital sales representative.
7–8 Connecting to External Ports