StorageTek 9710, System Assurance Manual

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MR0012J 9710 System Assurance Guide 4-11
SCSI Cabling
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SCSI Cabling
The following pages contain SCSI cable and adapter information.
Cable Restriction
Maximum allowed cable lengths (including the lengths already inside the 9710)
are:
• Single-ended: up to 6 m (20 ft) for up to 5 mega transfers per second
• Single-ended: up to 3 m (9.5 ft) above 5 mega transfers per second
• Differential: up to 25 m (82 ft)
Note: The LSM supports
only
the SCSI Type 3 connector at the LSM I/O panel
(tailgate). Customers using SCSI Type 1 or 2 cable connectors must order
a SCSI-1- or 2-to-SCSI 3 adapter for the LSM-end of their cables to
correctly mate with the LSM.
Table 4-3 lists additional restrictions for SCSI connections.
Table 4-3. SCSI Cable Restriction
Application Length Restriction
Single-Ended Stub length: 0.1 m (4 in.)
5–10 MHz data transfer rate: 3 m (10 ft)
1–5 MHz data transfer rate: 6 m (20 ft)
Differential Stub length: 0.2 m (10 in.)
1–10 MHz data transfer rate: 25 m (82 ft)