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1.3
Component Overview
Figure 1 provides an overview of the important interface card components.
Port 1 and Port 2 Ethernet Jacks
Either jack can freely be used in star topology networks (with external switch). In linear topologies, a
series of cards can be connected together by daisy-chaining one of the ports to the next inverter in line.
In ring topologies, the applicable redundancy protocol (MRP, DLR etc.) must be supported by all devices
on the network.
Connector CN1
The option connector is located on the bottom side of the interface card and is plugged directly onto the
inverter. This provides power to the option card and allows communication with the inverter.
USB Port
USB 2.0 port with mini-B connector. Used to access the card via the studio (refer to section 5) and as a
USB flash drive (refer to section 7).
Module Status and Network Status LEDs
These LEDs indicate the current status of the interface card and protocols in use. Refer to section 1.4.
Ethernet Link and Activity LEDs
One set of LEDs are provided for each Ethernet port. These LEDs provide insight into the Ethernet
network’s status and activity. Refer to section 1.4.
Figure 1: A1-ETHERNET Component Overview
Port 1 Ethernet jack
USB port
CN1 (bottom side)
MAC Address
Module Status LED
Network Status LED
Port 1 Link/Activity LED
Port 2 Link/Activity LED
Port 2 Ethernet jack