FARGO electronic Maestro 900 - Manual (Page 23)

Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 21
7. QUESTIONS AND ANSWERS
7.1 Installation
Q. If my Fargo Maestro cannot match with the requirement stated in section 2.1, can I upgrade it?
A. No. Older Fargo Maestro cannot be upgraded.
Q. Can I have the TCP/IP (IP connectivity) feature together with this VAF for Fargo Maestro 100?
A. No. You can only choose one of them.
Q. If I changed my Fargo Maestro with the VAF installed, can it be changed back to have TCP/IP
feature?
A. It depends. Contact Distributor or FargoTelecom
Q. I have downloaded the dwl file, and entered AT+WOPEN=1, but I still cannot use those
features, why ?
A. It could be installation problem. You can issue command AT+WOPEN=0, then AT+WOPEN=4,
then repeat the download procedure. If this still not help you may need to re-flash the main
firmware first.
Q. Can I stop the VAF ?
A. Yes, you can enter AT+WOPEN=0 to stop.
Q. I get message “Invalid modem” message after downloading and issuing AT+WOPEN=1, why ?
A. Maybe you have downloaded file into incorrect or damaged modem. Please contact
FargoTelecom.
7.2 AutoTCP/UDP
Q. Can I specify <server> by URL (e.g. xxxx.com) rather than IP address?
A. Yes, but only if your GPRS network have proper DNS service. You cannot specify your own
DNS server
Q. If I enabled AutoTCP or AutoUDP, how can I stop it ?
A. You can cut the power or issue a reset command (AT+CFUN=1) through SMS (when AT
command by SMS feature is enabled). After restarting the modem has 20 seconds for your to
enter AT+AUTOTCP=0 or AT+AUTOUDP=0
7.3 AT command by SMS
Q. Can I send any AT command to control other features described in this document?
A. No. AT commands described in this document cannot be sent over SMS.
7.4 I/O triggered AT command
Q. Can I put any AT command to control other features described in this document?
A. No. AT commands described in this document cannot be executed by this feature.