Tune 202 Modem - DPS Telecom NetGuardian 420 DNP3 Hardware User Manual

12.1.3

Tune 202 Modem

Tuning the 202 modem on a NetGuardian 420 can only be done from the TTY interface (using either
HyperTerminal through the front craft port or by telnet over LAN on port 2002).
Though no menu options will appear, use the following commands to tune the 202 modem. Each menu option,
when chosen, will output the character "A" on screen:
1) Minor Adjust DB+
2) Minor Adjust DB-
3) High Frequency
4) Low Frequency
5) Off
6) Major Adjust DB-
7) Major Adjust DB+
8) Median Frequency (Average of high and low frequency)
After selecting an option (like #1 in this example) for Minor Adjust the DB+ level, the NetGuardian will return a
+
' ' command to inform you the task is completed. Each time you hit a number key (1-8), the NetGuardian will a
+
' ' on your screen.
Select the baud rate for your PPP port
Press 'T' to tune the 202 Modem with the TTY interface
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