Description of Controls
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Modem Initialisation Sequence
The modem attempts to communicate to the module
If the Modem and module communicate successfully:
In case of communication failure between the modem and module, the modem is automatically reset
and initialisation is attempted once more:
In the case of a module that is unable to communicate with the modem, the display continuously
cycles between ‘Modem Reset’ and ‘Modem Initialising’ as the module resets the modem and
attempts to communicate with it again, this continues until correct communication is established with
the modem. In this instance, check connections and verify the modem operation.
Modem Diagnostics
Modem diagnostic screens are included; press the Scroll Down
button when viewing the
RS232 Serial Port instruments to cycle to the available screens. If experiencing modem
communication problems, this information aids troubleshooting.
Serial Port
RTS
CTS
DSR
DTR
DCD
Line
Description
RTS
Request to Send
Flow Control
CTS
Clear to Send
Flow Control
DSR
Data Set Ready
Ready to Communicate
DTR
Data Terminal Ready
Ready to Communicate
DCD
Data Carrier Detect
Modem is Connected
Modem Commands
Rx: OK
Tx: AT+IPR=9600
Rx: OK
Shows the state of the modem communication lines. These can help
diagnose connection problems.
Example:
RTS
A dark background shows the line is active.
RTS
A grey background shows that the line is toggling high and low
RTS No background indicates that the line is inactive
Shows the last command sent to the
modem and the result of the command.
Summary of Contents for 8610 MKII
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