SMA Sunny Boy Control - Manual (Page 91)

Sunny Boy Control
SMA Technologie AG
User Manual SUNBC-14:NE0206 87
Theoretically, all modems support the default Hayes init string. After selecting the mo-
dem type, the init string is automatically adjusted. If necessary, select
“user definded” to be able to modify the init string to suit a particular modem. Be
sure to edit the init string very carefully, otherwise the modem initialization or data
transmission may fail. In the case of older telephone systems, “Dialmode” can be
changed from “tone (MFW)” to “pulse (IWF)”.
With Siemens GSM modems, the PIN in the third init string needs to be adjusted. For
better reception, it is recommended to connect a directional antenna.
Running the modem test (refer to Fig. 6.33: Modem test result) will check the init
strings and make sure that the ringing tone is recognized. Modems with an unreliable
ringing tone recognition will produce an “ERROR”. Ringing tone recognition is irrele-
vant for remote data transmission. For testing fax transmission, use the “Test-FAX”
function (refer to section “6.6.2 Remote Info”).
[ MODEM-TEST ]
‡Init1…………………OK
Init2…………………OK
Init3…………………OK
Fig. 6.33: Modem test result
In the case of an ISDN connection, the best results can be obtained with
a configuration that uses the “multifunctional” setting. According to the
ISDN modem manufacturer the MSN has to be entered and saved in the
third AT sequence.