NetworX Version 3 Installation Manual
181
Smoke detectors follow the fire window. 868 MHz smoke sensors report every 64 minutes. Smoke
detectors follow the fire supervision window only and report to the central station when not reporting
within the fire window.
On the wired keypad the RF Zone Lost event is signalized by three beeps every 5 minutes. On the
wireless keypad the RF Zone Lost event is signalized after 15 seconds from the wake up and then
every 5 minutes from the last signal if the keypad is in the active mode. Please be aware, that entering
a valid code (for example arming/disarming) suppresses beep signalling for 12 hours. This
functionality depends also on the "Beep on RF loss" menu option (see Glossary in the keypad
chapter).
Testing wireless sensors
The Remote Signal Strength Indication Value (RSSI) is a measure of the RF reception and is similar
to the indication on a mobile phone. The value is linked to the level of the signal between the
wireless sensors and the RF receiver. On an 868 MHz system, the RF receiver stores the signal
strength of the transmission it receives from the sensor in a specified zone. The values in this zone
are read as follows:
• Values over 105: The sensor will not work properly and must be moved to another
location.
• Values between 105 and 90: The sensor will work but ideally should be moved to
another location.
• Values between 90 and 80: These are low values but the sensor will still work
properly.
• Values between 80 and 50: These are normal working values for sensor located at a
longer distance from the receiver.
• Values smaller than 50: Perfect conditions.
RSSI Values may change due to environmental circumstances, for example, additional furniture or
metal constructions. The following example tests the RSSI value of zone 2 on receiver 32.
1. Navigate with the ½¾ keys to RF Receivers>RF Receiver 32 and press OK.
2. Scroll to RSSI RF Device> RF Sensors>RF Zone 2 and press OK.
3. The RSSI value is displayed on the keypad.
The following example tests the RSSI value of the RF keypad 3 on receiver 32.
1. Navigate with the ½¾ keys to RF Receivers>RF Receiver 32 and press OK.
2. Scroll to RSSI RF Device> RF Keypads>RF Keypad 3 and press OK.
3. The RSSI value is displayed on the keypad.
The following example tests the RSSI value of the RF siren/IO module 2 on receiver 32.
1. Navigate with the ½¾ keys to RF Receivers>RF Receiver 32 and press OK.
2. Scroll to RSSI RF Device> RF Sirens/IO>Siren/IO 2 and press OK.
3. The RSSI value is displayed on the keypad.
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