Compaq AA-RHGWC-TE manual Scsi Bus Termination Power, DS-DWZZH-05 Indicators

Figure 3–4: DS-DWZZH-05 Front View

	Fair	Disable
Controller
Port		Host Port
SCSI ID		SCSI ID
6 - 4		2
(6 - 0)		(14)
		Power
Host Port
SCSI ID
3		Busy
(15)
Host Port		Host Port
		SCSI ID
SCSI ID
		0
1
		(12)
(13)
		ZK-1447U-AI

3.6.1.2.4 SCSI Bus Termination Power

Each host adapter connected to a DS-DWZZH-05 UltraSCSI hub port must supply termination power (termpwr) to enable the termination resistors on each end of the SCSI bus segment. If the host adapter is disconnected from the hub, the port is disabled. Only the UltraSCSI bus segment losing termination power is affected. The remainder of the SCSI bus operates normally.

3.6.1.2.5 DS-DWZZH-05 Indicators

The DS-DWZZH-05 has two indicators on the front panel (see Figure 3–4). The green LED indicates that power is applied to the hub. The yellow LED indicates that the SCSI bus is busy.

3.6.1.3 Installing the DS-DWZZH-05 UltraSCSI Hub

To install the DS-DWZZH-05 UltraSCSI hub, follow these steps:

1.Remove the W1 jumper to enable wide addressing mode (see Figure 3–3).

Shared SCSI Bus Requirements and Configurations Using UltraSCSI Hardware 3–15