LineEye LE Series - Measurement Port and Function Details

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Transmitting delay time
Select an interval (1-99999ms) of one data when transmitting test data.
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Repeat transmittion
Mark on this to send data repeatedly.
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Transmitting idle time
Select an interval (1-99999ms) of sending data repeatedly.
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For low speed data below 300bps, delay time and idle time settings might not
be reected correctly.
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For LE-120SA
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Measurement Ports
RS-232C
：
Measure RS-232C port of line monitor.
TTL
：
Measure TTL (UART) port of line monitor. Select a
voltage level of target devices from 5V, 3.3V, 2.5V and 1.8V.
Following are the input threshold of TTL.
Signal Level VIL(MAX) VIH(MIN)
5V 1.5V 3.3V
3.3V 0.9V 2.0V
2.5V 0.6V 1.6V
1.8V 0.4V 1.2V
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Function
It is able to select “Monitor” and “Simulate” for RS-232C port, and select
only “Monitor” for TTL port.