13
13
Troubleshooting
Having trouble with your modem? Try these basic troubleshoot-
ing steps first!
1.
Is your modem turned on? When your modem is properly connected to an
electrical outlet, a wall outlet, or a surge protector and is turned on, the
CTS and MR lights on the front panel will be illuminated.
2.
Is your power supply connected properly to both your modem and an elec-
trical outlet? If it is, check the outlet with another electric device (like a
lamp) to be sure that you are getting power. Also, use the power supply
that came with your modem; other similar-looking power supplies may be
of different voltages and could damage your modem.
3.
Are you using the proper cable to connect your modem to your computer?
Make sure you are using an RS-232 modem cable, preferably the one that
came with your modem. There are many computer cables that look similar
to an RS-232 that will not work correctly with this modem. For example, a
Null Modem cable will not work with your modem. Depending on whether
Enable result codes
3
ON (Default)
Enable the echo in offline commands
4
OFF (Default)
Disable the echo in offline commands
4
ON
Enable auto answer
5
OFF
Disable auto answer
5
ON (Default)
Normal Carrier Detect
6
OFF (Default)
Carrier Detect always on
6
ON
Display result codes In ALL modes
7
OFF (Default)
Display result codes in originate mode
only
7
ON
Disable AT commands
8
OFF
Enable AT commands
8
ON (Default)
Disconnect on escape (+++)
9
OFF
Online command mode on escape (+++) 9
ON (Default)
Load the configuration that is stored in
non-volatile memory (NVRAM)
10
OFF (Default)
Load the &F0 configuration from read-
only memory (ROM)
10
ON
To do this
Set DIP Switch
To this setting
Summary of Contents for Courier USR3453B
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