Chapter 10
Functional Description
10-35
10.2.15.3
External Cables
External Ultra SCSI-compliant SCSI cables have an impedance of 90 ohm (+/- 6 ohm)
and are required for Ultra SCSI interface. The Sun implementation of Ultra SCSI
requires that the total SCSI bus length be limited to no more than approximately 6 m
(20 ft) with up to twelve Sun compensated devices.
Owing to the considerably short bus length, two Ultra SCSI-compliant external
cables are supported, 800 mm (32 in.) and 2 m (6.6 ft).
Note –
Consult your authorized Sun sales representative or service provider to
order Ultra SCSI-compliant external cables.
There is also an external SCSI connector on the rear panel for legacy peripheral
devices.
10.2.16
SuperI/O
The Netra T4 system uses a SuperI/O ASIC to interface to the parallel port. The
SuperI/O ASIC also:
■
Provides the TOD/ID SEEPROM
■
Interfaces with the power supply
Содержание Netra T4 AC100
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Страница 25: ...PART I Service...
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Страница 107: ...Chapter 6 Power Subassemblies 6 9 FIGURE 6 3 System Switch and LED Assembly...
Страница 114: ...7 6 Netra T4 AC100 DC100 Service and System Reference Manual August 2001 FIGURE 7 3 CPU Fan...
Страница 116: ...7 8 Netra T4 AC100 DC100 Service and System Reference Manual August 2001 FIGURE 7 4 Fan Connectors...
Страница 123: ...Chapter 8 Storage Devices 8 7 FIGURE 8 2 FC AL Backplane and Drive Bay Assembly...
Страница 133: ...Chapter 9 Motherboard and Component Replacement 9 5 FIGURE 9 2 CPU Modules...
Страница 136: ...9 8 Netra T4 AC100 DC100 Service and System Reference Manual August 2001 FIGURE 9 3 Using the Torque Tool STOP...
Страница 153: ...PART II System Reference...
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