Campbell Scientific COM320 Voice Communications Modem - Manual (Page 30)

COM320 Voice Communications Modem
FIGURE 6. Side View of Surge Suppressor Wiring
7. Troubleshooting COM320 Voice Systems
Following are some possible reasons for your COM320 system not working or
not working properly.
7.1 No Communications
Voice Mode — No voice announcements when you call the station
1) The COM320 is connected to a digital rather than an analog phone line.
2) The COM320 configuration was changed from its default factory settings
(see Appendix D).
Data Mode — Can’t connect to the station with LoggerNet software.
1) No commas and/or “9” added to the dial string in LoggerNet to
temporarily put the COM320 into data mode.
2) The “9” is being dialed before the COM320 ‘picks up’ and voices the
announcement (not enough commas).
3) No phone number in the LoggerNet dial string.
4) COM320 is connected to a digital rather than an analog phone line.
5) LoggerNet Setup configured for the wrong PC modem.
6) LoggerNet configured for a baud rate the station cannot handle (try 9600).
7) COM320 configuration was changed from its default factory settings
(see Appendix D).
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