Chapter 1. Product Overview
EK–SMCPO–UG. A01
1–9
Figure 1–5 Pedestal Rear Panel Components
3 0 00 -2 3A
C on tro ller (B ottom )
C on tro lle r (Top)
H o st #1
Ex te rna l
Fa ult
H os t #0
U PS
1.4.6 UltraSCSI Buses
The pedestal contains two, 16-bit, single-ended, wide UltraSCSI buses (factory-
configured as a split bus) that connects the controller(s) to the disk drives.
The split-bus arrangement is divided into two bus paths designated device port 0
and device port 1 as shown in Figure 1–6. Port 0 connects the controller to the
upper four devices in the pedestal (IDs 8 through 11) and port 1 connects the
controller to lower three devices (IDs 8 through 10). The device addresses on the
bus are set at the factory by an internal configuration switch (see Figure 1–7).
Summary of Contents for DS-HSZ22-AA
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