User Manual

Table Of Contents

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

If problem remains, try a few different modem initialization strings. Axell Wireless has been

successful with the following modem initialization strings:

AT+CBST=71,0,1;\Q3

AT+CBST=7,0,1;\Q3

AT+CBST=0,0,1;\Q3

AT+CBST=7,0,3;\Q3

Please refer to the modem manual for detailed description of the modem initialization strings.

7.5.4.6 Problem 3

It is possible to call the repeater from another GSM mobile, but not from an analogue modem.

7.5.4.7 Solution

This problem is most likely related to the modem configuration and/or the configuration of the IFU

unit. Try to decrease the communications speed and make sure that the modem error correction is

supported by the IFU. Verify the IFU configuration to see if there are any known problems with the

modem connections.

7.5.4.8 Problem 4

When dialling the repeater, or when the repeater is dialling the Element Manager, the connection is

terminated before the handshaking is completed.

7.5.4.9 Solution

When a repeater is answering an incoming modem call, or calling up the OMC to deliver an alarm or

a report, the repeater will wait a configurable number of seconds for the call to be established. If no

communication is established within this time, the call will be hung up. If this interval is set too low,

the handshaking is terminated too fast. In the RMC, verify the Modem Connect Time to see that it is

set to at least 30 seconds.