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26
Table 4b. Cable characteristics for differential I/O circuits
Interconnect
Point-to-point interconnect
(2 devices)
Daisy-chain interconnect
(up to 16 devices)
[1] For environments where all elements of the bus (cables, device inter-
faces, environmental noise and other parameters) are controlled to
be better than minimally required, it may be possible to extend the
path length and device count.
[2] SCSI devices shall be within a stub length of the termination (.1
meter).
[3] Values specified by data rate shall apply even if a slower data rate is
negotiated.
[4] Low voltage differential (LVD) devices only ("LW" models).
Twisted pair cable should be used with differential transceivers.
Barracuda 18 Installation Guide, Rev. C
Maximum distance between
terminators (meters) [1] [3]
Fast-5 Fast-10 Fast-20 Fast-40
25
25
25
25
25
25
25 [2]
12 [4]
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