Digital Equipment VAXstation 3100 Maintenance Manual page 89

68 Utilltl'8
The address ID assignments for the devices differ slightly between model 30
and model 40 as shown in Table
3-3
(model 30) and Table
3-4
(model 40).
Note that if two RRD40 devices are to be installed (one internal and one
external), the internal RRD40 controller board should be set to address ID 4
and the external expansion box should be set to one of the open address IDs.
Table 3-3 Model 30 SCSI Bus Address ID Assignments
SCSI-A Dus (SCSI/SCSI)
RZ22
or RZ23 disk drive (system disk)
1Z30
tape
drive
SCSI bus controller
Reserved for expansion
SCSI-A Bus (ST506/SCSI) or SCSI-B (SCSI/SCSI)
RRD40 compact
disc
drive expansion box (external)
RZ22 or RZ23 disk drive (system disk)
RZ22 or RZ23 disk drive (user disk)
RZSS disk drive expansion box
RZ53 disk d..rive expansion box (second box)
SCSI bus controller
Internal TZ30 tape drive or TKSOZ expansion box
Reserved for expansion
AddreM ID
3
5
6
7
4
3
2
1
0
6
5
7