Kontron MITX-CFL0 Series User Manual page 34

Signal
RI
TX+/-
RX+/-
Data+/-
GND
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Description
Ring Indicator, indicates that the modem has received a ringing signal from the telephone
line.
Transmitted data differential pair sends data to the communications link.
Received data differential pair receives data from the communications link.
Transmitted / received data differential pair either sends or receives data to the
communications link at a time.
Power Supply GND signal
MITX-CFL0 Series - User Guide, Rev. 1.1
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