7. Troubleshooting:
Please refer to the following table for possible trouble if the indicator light for PWR is
steadily on or you cannot dial any number after the power supply is on.
Number
Binary Code
ST0 ST1 ST2
Designation
0
000
〇〇〇
No signal
1
001
〇〇●
Network registration
failed
2
010
〇●〇
PIN needed
3
011
〇●●
PUK needed
4
100
●〇〇
No valid SIM card
5
101
●〇●
Operator locking failed
6
110
●●〇
Terminal locking failed
If you may find and deal with the error according to the above table, do it by yourself.
You may restart the terminal for checking of any improvement. If you cannot deal with the
error, please turn to the distributor or the operator.
7.1 Troubleshooting telephone set:
The telephone set linked to the terminal should be DTMF (dual-tone multi-frequency)
phone. If both T (for DTMF) Mode and P (for DC Pulse) Mode are available, make sure
your phone set is always switched to T Mode when connected with the terminal. After
connecting the phone to the terminal, pick up the handset and see if the PHONE indicator
light glows or not. If it glows, the connection is all right. If it blinks, check the connection.
After checking if the PHONE indicator light still blinks, there is error in the telephone set.
Use a new phone set and see if it works. If still no working, turn to the distributor or the
operator.
7.2 Troubleshooting power supply:
The POWER indicator light shows the working conditions of the power supply. If
POWER light is off, the AC power is not available or the voltage is lower than the working
level.
7.3 Troubleshooting antenna:
If the voice is not clear or intermittent and no error found in the telephone set, turn to the
antenna for possible cause.
See if POWER indicator light is blinking.
If no GSM signal strength indicator lights are on, check the antenna:
See if the antenna is damaged or not;
GSM FIXED WIRELESS TERMINAL 11 USER MANUAL
