User Manual

Table Of Contents
Optical Master Unit
PRODUCT DESCRIPTION AND USER’S MANUAL
© Axell Wireless Ltd A1829300 rev H 80 (86)
AT+CBST=0,0,1;\Q3
AT+CBST=0,0,1;\Q3
AT+CBST=7,0,3;\Q3
Once the modem initialization string is entered, try again to dial up the OMU. For details on the different
modem initialization strings, please refer to the modem’s user guide.
If the setup is successful, the connect message will be brought up;
CONNECT 9600
This means that an online connection is established to the remote peer. From now on, all characters typed on the
keyboard will end up on the remote peer’s screen. Similarly, all characters typed by the remote peer will be
displayed on the screen.
In the example, the incoming call was
successfully answered, and the remote
user entered the text message.
In order to come back to modem command mode, press +++ (three pluses) rapidly (within one second).
Receiving
OK
means that the modem is back in command mode.
Type
ATH <enter>
This terminates the connection to the remote peer. The message
NO CARRIER
will be displayed.
Common Problems
Problem 1
When enabling the remote access for the OMU, the modem fails to log in to the network.
Solution
Signal strength from the donor site is too low. The signal strength can be read directly from the modem. Go in
to Direct Modem Access as described earlier. Use the command AT+CSQ (documented below) to read out the
signal strength.
In order to have good signal quality, Axell Wireless recommends that the signal strength should be better than -
95 dBm. If signal strength is lower, try to adjust the antennas to get a better signal strength from the donor.