Network clocking
The network clock setting specifies the number of physical external clock signals.
RS449/V35
Use RS449/V35 Compatible when the external equipment provides two
Compatible
clock signals, one for transmit and one for receive. The difference
between RS449 and V35 is only the cable.
X21
Use X21 Compatible when the external equipment provides a common
Compatible
clock signal for both transmit and receive.
Administrator Settings
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