Download ComProbe USB User Manual - Frontline Test Equipment

ComProbe USB User Manual
Chapter 4 Capturing and Analyzing Data
the bus. It is important to note that the digital inputs are susceptible to cross-talk if they are not being actively driven. A situation like this could occur if a digital input has been enabled, but has not been tied to a signal. Any other nearby signal (i.e., other digital inputs or outputs) could cause the input to activate. It is recommended that all undriven digital inputs be disabled or tied to ground.
USB: Name - Pin 1, 2, 3, and 4
ComProbe USB monitors four control signals. Figure 4.43 - ComProbe USB Breakout Box Display
Digital inputs provide a means for users to insert events into the data stream. There are four digital inputs that can be enabled individually. HSU: Frontline monitors six RS-232 control signals
DTE Signals
Figure 4.44 - ComProbe HSU Breakout Box Display
l CTS - Clear To Send
l DSR - Data Set Ready
l CD - Carrier Detect
l RI - Ring Indicator (see the special note on capturing Ring Indicator changes)
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