Configuring The Emu; Connecting The Emu Communication Bus; Figure 3-4 Emu Communications Bus Connections - Compaq StorageWorks DS-BA370 Series User Manual

Configuring the EMU

Connecting the EMU Communication Bus

Configuring the EMU requires connecting the EMU-EMU
communications bus and using the command line interpreter (CLI)
set emu command. This command establishes operating
temperature set points and desired blower speed operating mode
(high-speed or automatic).
In an expansion configuration, an EMU-EMU communications bus
between the master EMU and each expansion EMU must be
established. To establish this communications bus, connect the EMU
communications connector using a BN26M series cable, as shown in
Figure 3–4. The center EMU in this figure is the master EMU.
Establishing this EMU-EMU communication bus ensures that the
master EMU can monitor and control all the enclosures within the
UltraSCSI subsystem.
Figure 3–4 EMU Communications Bus Connections
Compaq recommends using a BN26M cable (see Table 3–1) no
longer than 4 m (13.1 ft) to connect the EMUs.
Environmental Monitoring Unit
UltraSCSI RAID Enclosure 3–7
CXO5820A