
Functional description
Page 16 of 46
MSM-USM2G-BA-UK-001
3.10.3 Operation modes
By means of a push button or function input, the annunciator can be set to different operation modes.
A currently activated operation mode is indicated by green flashing of the OK-LED with dedicated
flashing sequences as follows:
Flashing sequence
Operation mode
Comment
long
–
short
Horn muted
The horn will be triggered according to
parameterisation in „Horn mute“,
as long as
this operation mode is activated.
long
–
short
–
short Unmanned mode
As long as this operation mode is activated, no
optical or acoustical output of alarms at issue is
triggered. The internal alarm processing as well
as triggering of relays and IEC communication
stays active though.
Table 3.2: Operation modes of the USM