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DWZZH 16-Bit UltraSCSI Hub
1–6 EK–DWZZH–UG. D01
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-
operating)
–40°C to 66°C (–40°F to 151°F)
Power Requirements
DWZZH +5V
Input Current:
DWZZH-03
DWZZH-05
DWZZH-21
2.3 Amp
4.3 Amp
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