Electronics Line 3000 iConnect Installation Manual page 41

4 Advanced System Operation
Note: In most cases, an "out of synchronization" condition indicates that an unauthorized attempt at grabbing
the transmission has occurred – i.e. a previous transmission has been recorded and sent by somebody
trying to violate the system.
The second utility, TX Test, enables you to identify transmitters and test their signal strength. In TX Test mode, each
time a transmission is received, the activated transmitter is displayed. If you enter this function using the Master code,
a chime is sounded every time a transmission is received. If you enter this function using the Installer code, a sequence
of tones are sounded indicating the transmitter's signal strength – see Table 4-3. This feature helps you to determine the
best location to install a transmitter.
Note: The lowest recommended signal strength for any installed transmitter is 5. If the received signal
strength is lower than 5, relocate the transmitter.
Signal
Strength
0-2
3-5
6-8
8-9
Table 4-3: Signal Strength Tones
To initiate TX Test mode:
1. From the Service menu, select Transmitters, TX Test [7072].
2. Activate a transmitter; the transmitter's details are displayed.
3. When you have finished, press
4.8.8. Audio Volume
To adjust the sensitivity of the microphone and the volume of the speaker:
1. Establish a two-way audio connection – see 5.1.4 Telecontrol Call Procedure.
2. From the Service menu, select Audio Volume [708].
3. Using the arrow keys on the Front Panel keypad, adjust the setting according to the following table.
Key...
1
4
3
6
Table 4-4: Voice Level Adjustment
4. Press ; the new settings are stored in the memory.
4.8.9. GSM Signal Strength
You can measure the GSM signal strength. This function and the RF RSSI level (see below) enable you to calculate the
optimal location to install the Control System with the Cellular Communication Module.
To view the GSM signal strength reading:
From the Service menu, select RF & GSM Level, GSM Signal [7091]; the signal strength of the cellular
network is displayed.
Note: In severe cases of low GSM signal consider using external GSM antenna.
4.8.10. RF RSSI level
You can measure the RF RSSI level (RF noise measured by the systems' receiver) using the system's RSSI (Received
Signal Strength Indication) meter. The Control System will start measuring the RSSI level of the receiver every second,
and it will display the result in levels from 1 to 9 – similar to the level of detector transmitter's signal strength. It is
recommended that the gap between the RF noise level and the TX signal strength be at least 2. For example, if the RF
iConnect Installation Manual
Tones
1 Tone
2 Tones
3 Tones
4 Tones
to exit TX Test mode.
Function
Increases microphone sensitivity
Reduces microphone sensitivity
Increases speaker volume
Reduces speaker volume
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