TCG140_R1.1 – May 2018
Page 11
Connected to GSM network
– after successful connection to a mobile network, STA shows
the type of connection, while SIG shows the signal strength.
STA flashes ones for 200mS in period of 2S – there is GSM connection only;
STA flashes twice for 200mS in a period of 2S – there is GSM and GPRS connection.
In the same time SIG has 5 states:
SIG flashes 1 time in period of 2S
– signal strength is between 0 and 20%;
SIG flashes 2 times in period of 2S
– signal strength is between 21 and 40%;
SIG flashes 3 times in period of 2S
– signal strength is between 41 and 60%;
SIG flashes 4 times in period of 2S
– signal strength is between 61 and 80%;
SIG is solid ON
– signal strength is between 81 and 100%;
Error message
– in case of error after initialization, SIG will stay solid OFF, STA will flash
showing the type of error.
STA flashes ones for 1S
– master phone number is not set;
STA flashes permanently for 1S in a period of 2S
– permanent hardware error.
Summary of Contents for TCG140
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Page 47: ...TCG140_R1 1 May 2018 Page 47 Appendix C Fig 1 Fig 2 ...
