Adaptec 2930 - SCSI Card Ultra Storage Controller 20 MBps Manuel d'instructions télécharger pdf (Page 33)

SCSI Cables and Adapters

Maximum Cable Lengths

The total length of cabling (internal and external) on the SCSI bus

may not exceed the maximum lengths listed in Table 5.

❒

Table 5. Maximum Cable Lengths

Maximum

Cable Length Data Transfer Rate

Maximum

Peripherals

Supported

12 m (29.4 ft) Ultra2 (80 MBytes/sec)

Mixing Fast/Ultra peripherals with Ultra2 peripherals on the same segment causes

the entire SCSI bus to default to Ultra SCSI speeds and cable requirements.

3 m (9.8 ft) Fast SCSI

(10 MBytes/sec)

3 m (9.8 ft) Wide SCSI

(20 MBytes/sec)

3 m (9.8 ft) Ultra SCSI

(40 MBytes/sec for 16-bit (Wide),

20 MBytes/sec for 8-bit)

1.5 m (4.9 ft) Ultra SCSI

(40 MBytes/sec for 16-bit (Wide),

20 MBytes/sec for 8-bit)

5-8

Ultra SCSI data transfer rates do not currently support more than eight devices.

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Adaptec 2930 - SCSI Card Ultra Storage Controller 20 MBps Manuel d'instructions Page 33