PAROS 4G is equipped with:

• a "functioning" green LED
• a red "Status" LED:
• a stylus antenna to be connected to the connector (if the signal is too weak, it can be replaced with a magnetic base antenna with a 2.5 m cable)
• a "slide" housing for the SIM card accessible by opening the PAROS 4G container

The modem responds to AT commands, among which are the commands for the verification of signal quality (AT + CSQ). With this command, the modem responds with the value corresponding to the amplitude of the received signal and to a value corresponding to the BER (Bit Error rate).

PAROS 4G works correctly when the amplitude of the received signal is higher than 10 (greater than -93dBm). Lower values do not guarantee the quality of the connection.

WARNINGS

• PAROS 4G must be equipped with a SIM card (not included)
• The PIN code must be disabled by the SIM card before inserting it into the PAROS 4G disabilitato dalla SIM Card prima di inserirla nel PAROS 4G
• Check that the SIM card is enabled for both incoming and outgoing data traffic
• Switch off the power supply to the PAROS 4G before inserting or removing the SIM card
• Do not power the modem without an antenna correctly inserted