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Chapter 6. Configuration
30 ISU 128 User Manual 61202.029L2-1
1 sec or EON
The ISU 128 assumes the dial string is fully entered if more than one second
elapses since the last digit was entered, or the unit receives the EON com-
mand.
2 sec or EON
The ISU 128 assumes the dial string is fully entered if more than two seconds
elapse since the last digit was entered, or the unit receives the EON command.
5 sec or EON (default)
The ISU 128 assumes the dial string is fully entered if more than five seconds
elapse since the last digit was entered, or the unit receives the EON command.
This is the factory default setting.
10 sec or EON
The ISU 128 assumes the dial string is fully entered if more than 10 seconds
elapse since the last digit was entered, or the unit receives the EON command.
20 sec or EON
The ISU 128 assumes the dial string is fully entered if more than 20 seconds
elapse since the last digit was entered, or the unit receives the EON command.
Wait for EON
The ISU 128 assumes the dial string is fully entered only if the unit receives the
EON command.
AT Commands
Configuring the ISU 128 for AT commands enables in-band dialing over the
DTE interface using asynchronous AT commands. AT commands can be used
to set up the ISU 128 as well as establish and end a call. Calls can be discon-
nected from the front panel (as previously described) or from the far-end unit.
When AT commands are selected, the DTE port becomes dual purpose. First,
while a call is not established, the port accepts AT commands. During this
time, the Carrier Detect (CD) signal is inactive. Second, when a call is estab-
lished, the port is used for data. This data mode is indicated by the CD signal
active. See the appendix AT Commands for a listing of the supported AT com-
mands and their functions. In addition to the front panel, the ISU 128 can be
configured and controlled with in-band AT commands from an asynchronous
DTE port.