Reference Manual

External Alarms
49 External Alarms
49.1 References
Whenever a reference is made to a function described in another chapter,
please refer to the table of contents to find the appropriate chapter.
49.2 Concepts
External Alarm An alarm that originates from a source
defined by the customer. The alarm is
reported over A-bis transparently through
the RBS. An example is a fire alarm.
Auxiliary Faults Detected by supervision of auxiliary
equipment.
Auxiliary Equipment Equipment connected to the RBS but
normally situated outside the RBS cabinet.
Alarm Inlet The binary inlet to which the supervised
equipment is connected. Used for both
Auxiliary Faults and External Alarms.
Alarm Setup The parameter definition for the alarm
inlets, which is set by OMT.
Basic Character Set A subset of the CCITT International
Alphabet No 5, International Reference
Version. See table below:
Table 156 Basic Character set
Character Code
Space
20
hex
0123456789 30
hex
-39
hex
: ; <=>? @ 3A
hex
-40
hex
ABCDEF GHI J KLMNO41
hex
-4F
hex
PQRSTUVWXYZ 50
hex
-5A
hex
_ 5F
hex
49.3 Function
Purpose
This function facilitates external alarms reported via the RBS. Example
of this is "fire alarm".
Each active alarm will activate one common indicator light, which will
be deactivated when there is no alarm active.
EN/LZT 720 0008 P2A
2001-11-28
393 (485)
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