APsystems ECU-R Installation/User Manual
2. Interface Explanation
2.1 Interface Layout
The ECU-R interface includes, (figure 2) from left to right
Reset button
Wifi antenna connector (WLAN communication between ECU and
router)
power connection port
RJ45 Signal port (for Australia only)
RJ45 ethernet network port (LAN communication between ECU and
router)
Zigbee antenna connector (communication between ECU and
microinverters)
Reset Antenna (WIFI) RJ45 ethernet network port Antenna (ZigBee)
On the side ECU: from top to bottom are:
USB port (North America ONLY): for cellular communication using an
external 4G dongle. It is recommended to only use the cellular
communication in areas where there is no easy access to Wireless or
Ethernet network. Only 4G Dongle supplied by APsystems are
compatible with our ECU-R.
AP button: in case there is need to activate the ECU-R hotspot (see
later in the document)
Figure 2
RJ45 Signal (Only for Australia)