Compaq DWZZH manual Dwzzh Hub Functional Specifications Cont’d Feature

DWZZH 16-Bit UltraSCSI Hub

Table 1–1 DWZZH Hub Functional Specifications (Cont’d)

Feature	Specification
Cable Fault	DIFFSENSE support and port disable on cable fault
Glitch Elimination	100% glitch free operation during power-up
	BUSY GLITCH trap eliminates cable length constraint
	due to wired-OR glitches on the BSY line
Termination
Singled-ended	Active termination for 16bit operation.
Differential	Termination for 16bit operation.
Service

There are no user servicable functions on these products.

Contact Digital service personnel all service.

Agency Approvals

UL, CSA, FCC Class B, TUV

Environmental Specifications

Relative Humidity	10% to 85% non-condensing
Operating Temperature	10°C to 40°C (50°F to 104°F)
Storage Temperature (non-	–40°C to 66°C (–40°F to 151°F)
operating)
Power Requirements
DWZZH	+5V
Input Current:
DWZZH-03	2.3 Amp
DWZZH-05	4.3 Amp
DWZZH-21	1.8 Amp
TERMPOWER	Supplied to internal terminators only.
SCSI Connectors and Cables
Single-Ended	Board mounted 68pin VHDCI SCSI connector
Differential	Board mounted 68pin VHDCI SCSI connector
Cables	BN37A and BN38C series shielded SCSI cables

1–6 EK–DWZZH–UG. D01