Compaq manual Narrow Addressing Setting, DWZZH-05 Scsi ID Assignments

Chapter 2. Using the DWZZH UltraSCSI Hub

Figure 2–1 DWZZH–05 SCSI ID Assignments

C ontroller P ort			Host Port		Host Port
	SCS I ID 6-0	SCS I ID 15		S CSI ID 14

H ost P ort

SCSI ID 13

Host P ort

SCSI ID 12

S H R -1069

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.

EK–DWZZH–UG. D01 2–3