SBG Systems Exinox Subsea Series, Руководство по оборудованию

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Ekinox Subsea – Hardware Manual EKINOXSUBSEAHM.1.4
4.3. Typical wiring
In this section, we briefly describe a few recommended wiring diagrams.
4.3.1. RS-232 basic communications
Below is shown the main interface (Port A) connection, using a full duplex RS-232 connection using the
standard cable provided with the Ekinox Subsea. See section Appendix A: Ordering codes and Accessories
for more details about this cable.
4.3.2. RS-422 basic communication
Below is shown the main interface (Port A) connection, using a full duplex RS-422 connection using the
standard cable provided with the Ekinox Subsea. See section Appendix A: Ordering codes and Accessories
for more details about this cable.
Note the termination resistors (Usually 120 ohms) that can optionally be placed on receiver side to avoid
communication errors in long distance communications. These resistors can be omitted in short distance
communications in order to reduce power consumption.
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Figure 4.2: Main serial interface full duplex connection in RS-232
Ekinox
GND
PORT A Tx
PORT A Rx
PC
PC Tx
PC Rx
GND
Figure 4.3: Main serial interface full duplex connection in RS-422 mode
R2
R1
Ekinox PC
GND
PORT A Tx+
PORT A Tx-
PORT A Rx+
PORT A Rx-
PC Rx-
PC Rx+
GND
PC Tx-
PC Tx+
R1 and R2 are optional. Recommended
for long distance communication