StorageTek 9840 - Manual (Page 55)

95741 Sixth Edition 3-5
Hubs
A 9840 Tape Drive can be connected to an AS/400 through a 6501, 6534, or
2729 IOP using a 68-pin SCSI cable (listed in the preceding table).
Note: The 6501 IOP also requires an interposer (order from IBM P/N
05H3834).
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Hubs
Because of the fast growth and the increased demand for FC attachments, hubs
can provide cascading (multiple) loops within a FC network. StorageTek tape
drives are designed to use hubs to provide for an arbitrated loop which
provides the following capabilities:
• Centralizes the attachment of the tape drives within the arbitrated loop
• Establishes connections with fiber-optic cables
• Provides translation of physical media (such as copper to optical fiber)
• Provides an external power supply for the port bypass
• Provides port bypass functionality for port failures
• Allows cascading to increase tape drive and initiator attachment
Table 3-2. SCSI Cable Part Numbers
Standard Rated
Cable (CL2) Plenum Rated
Cable (CL2P)
Length (meters) Length (feet)
10083309 1008313 3 10
10083310 1008314 4 20
10083311 1008315 15 49
10083312 1008316 20 65
Figure 3-3. SCSI Cable Connectors
C53686