Compaq DWZZH - Manual (Page 21)

Chapter 2. Using the DWZZH UltraSCSI Hub
EK–DWZZH–UG. D01 2–3
Figure 2–1 DWZZH–05 SCSI ID Assignments
C on tro lle r P ort
S C S I ID 6-0
H o st P o rt
S C S I ID 15
H o st P o rt
S C S I ID 1 4
H ost P ort
S C S I ID 1 3
H ost P ort
S C S I ID 1 2
S H R -1 0 6 9
2.3 Narrow Addressing Setting
The large Hub can be used with SCSI bus architectures that are limited to eight
ID assignments, such as DIGITAL UNIX 4.x and earlier versions. (Figure 2-2
shows narrow ID assignments). The jumper on the rear of the Hub (Figure 2-3)
must be closed to make the Hub respond to SCSI IDs 3 – 0 on the host ports.