Siemens FDCW221 - Status Display on the Radio Smoke Detector DOW1171 and on the Radio Base SMF6120

Structure and function
Function
3
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Building Technologies
009865_m_en_
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Fire Safety
2015-11-06
3.10.6 Status display on the radio smoke detector DOW1171 and
on the radio base SMF6120
The radio smoke detector DOW1171 and the radio base SMF6120 have a status
indicator.
In configuration operation, the status indicator displays flash sequences to indicate
the field strength.
The status displays are listed in the following table:
Flashing cycle of status indicator
(red LED) / s (second)
Meaning of flashing cycle
Off Normal operation
1x / s ALARM (AI only with DOW1171)
1x / 2 s New log-on
3x / 2 s Re-log-on
1x long / 2 s
System search: Attempt to establish a radio link to a radio
gateway
4x / s
1
Field strength following successful radio detector log-on to radio
gateway:
● High receive field strength
3x / s
1
Field strength following successful radio detector log-on to radio
gateway:
● Average receive field strength
2x / s
Field strength following successful radio detector log-on to radio
gateway:
● Low receive field strength
1x / s
Field strength following successful radio detector log-on to radio
gateway:
● Very low receive field strength
Continuous flashing (5x / s) Error
Status of the radio smoke detector DOW1171 and the radio base SMF6120
1
Only the field strengths which are displayed with the 3x/s or 4x/s flashing cycle are acceptable link
qualities for the radio gateway.