APsytems ECU-3 V8.0 Installation/User Manual 7 7
HARDWARE INSTALLATION
Cable Ports
Power Connection Port:
The power connection port is used to both supply the ECU with power, and
communicate with the inverters using the Power Line Communications
(PLC) protocol.
RS232 Serial Port:
The RS232 serial port can be used to connect the ECU to the Internet
using General Packet Radio Service (GPRS). GPRS is a cell technology
that is not available in all areas. Check with your cell phone service
provider for details regarding availability and service pricing.
Network Port (RJ45):
The network port (RJ45) is used to connect the ECU to your local network
via a CAT5 cable. This port can be used to connect directly to the network
router, or through a wi extender or PLC bridge.
USB Port:
The USB port can be used as a power source (5VDC) for a wi bridge if
necessary. It is NOT a two-way communication port, and is therefore
incompatible with external wi devices such as wi dongles or thumb
drives.
Figure 6
Power Connection Port Network Port
Network Port (RJ45)
RS232 Serial Port
CABLE CONNECTIONS
1. Connect the supplied power cable to the power connection port on
the bottom of the ECU.
NOTE: As noted in the previous section, the ECU communicates with the
inverters using the Power Line Communications (PLC) protocol through
the power connection port.
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