
Nextiva S1700e Series User Guide
Verint Video Solutions 51
Data Communication Equipment
DCE modules have the following electrical-level setup:
Connecting DTE and DCE
When connecting two modules of the same type, you have to
cross the data wires to create proper communication. On the
other hand, when connecting a DTE with a DCE, a straight cable
is required.
Pin number Signal Measured voltage
3Tx0 volt
2Rx-X volts
Tx
Rx
Ground
-X volts measured
for the Rx pin
-0 volt measured
for the Tx pin
DCE DCE
DTE DTE
DTE DCE
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
Tx
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