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3–4
Model 2100 and 2200 Ultra SCSI Controller Enclosures User Guide
Audible Alarm
By default, the EMU generates an audible alarm each time it detects an error condition.
The audible alarm horn (or horn) can be muted or disabled using the EMU bezel switches.
Muting is only capable when the horn is enabled. Holding the group switch (refer to
6
Figure 3–2,
new error condition overrides the mute function, and sounds the audible alarm for the
severest active error condition.
To mute and unmute the horn:
Mute — Press and hold the group switch for approximately 2 seconds. The group
switch LED turns O
Unmute — Press and hold the group switch for approximately 2 seconds. The group
switch LED turns O
The horn (
Ho
alarm from sounding at all times until the horn is enabled again. Disabling the horn also
turns O
the group switch LED.
N
Navigate to the
default display (the
the alphanumeric display, press the increment button (
current setting. Change the current horn mode setting, from either enabled (
(
), or vice versa, by using both the increment and group switches as indicated in the
di
Figure 3–3. The
) temporarily toggles the horn O
and the audible alarm turns off when the horn is muted.
N
and the audible alarm can sound when the horn is unmuted.
FF
) feature enables or disables the horn. Disabling the horn prevents an audible
Ho
display by using the group switch (see Figure 3–2,
address setting, such as
id
default setting is
Ho
En
(mute) or O
(unmute). Detection of any
N
FF
), press the group switch twice. With
--
1
in Figure 3–3) once to view the
.
6
). From the EMU
in
Ho
En
) to disabled
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