Configuring the emu, Connecting the emu communication bus, Figure 3–4 emu communications bus connections – HP Array Controller HSG V8.7 Software User Manual
Page 63: Figure 3–4 emu communications bus connections –7
Environmental Monitoring Unit
UltraSCSI RAID Enclosure 3–7
Configuring the EMU
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).
Connecting the EMU Communication Bus
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.
CXO5820A