CS875-575-375-275-175 Installers Manual with CS5500 keypad
B.5.8
5.5 Testing wireless sensors
5.5.1 RF433 Mhz system
The RF433 Mhz system uses a last round count to provide an indication of the quality of the data reception. It
displays the number of rounds of RF data received during the last transmission. The following example tests the
last round count on sensors enrolled on RF receiver 33.
1.
Activate a tamper alarm and wait five seconds before restoring the tamper to prevent additional signals
being counted.
2.
Navigate with the
µ¶
keys to
RF Receivers>RF Receiver 33
and press
OK
.
3.
Scroll to
RF Signal>Last Round Count
and press
OK
.
4.
The last round count is displayed on the keypad.
5.5.2 RF868 Mhz system
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 between 1 and 5: The sensor will not work properly and must be moved to another location.
•
Values between 6 and 10: The sensor will work but ideally should be moved to another location.
•
Values between 11 and 20: These are low values but the sensor will still work properly.
•
Values between 20 and 50: These are normal working values for sensor located at a longer distance from the
receiver.
•
Values above 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
µ¶
keys to
RF Receivers>RF Receiver 32
and press
OK
.
2.
Scroll to
RF Signal>RSSI Check Zone>(2) Zone 2
and press
OK
.
3.
Open and close zone 2.
4.
Scroll to
RSSI Value
and press
OK
.
5.
The RSSI value is displayed on the keypad.
5.6 Deleting sensors
You can program a receiver to ignore a sensor. This does not remove the sensor identification from the module’s
memory. The sensor can be reactivated later or a new sensor can be learned into the zone. The following
example removes sensor 10 learned in on receiver 32.
1.
Navigate with the
µ¶
keys to
RF Receivers>RF Receiver 32
and press
OK
.
2.
Scroll to
Inputs>Sensor 10>Enabled>
NO
and press
OK
.
3.
The keypad beeps once to accept the change and returns to
Enabled
.
