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3 connecting the inverter and router via ethernet – SMA INVERTER MANAGER User Manual

Page 5

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SMA Solar Technology AG / SMA America, LLC

3  Inverter Manager

Installation Manual

IMVIOBOX-IA-xx-10

5

3.3.3 Connecting the Inverter and

Router via Ethernet

Pin assignment of network ports (LAN1 and LAN2):

3.3.4 Connecting the I/O Box and

Weather Station (Optional)

Pin assignment of the serial interface (RS485):

3.3.5 Connecting the

Inverter Manager to the Voltage

Supply

Procedure:
To connect the Inverter Manager to the voltage supply,
perform the following actions in the specified order.

• Connect the grounding conductor to the

Inverter Manager.

• Connect the power supply unit.

Connecting the Grounding Conductor to the
Inverter Manager

Shielded ground: The shielded ground (also called
"protected ground") is located at the pin connector for the
electrical connection in the displayed view.
Procedure:

• Ground the Inverter Manager. For this purpose,

connect the grounding conductor to the grounding
screw of the Inverter Manager. Proper grounding and
the correct cable route help limit possible interference
emissions due to electromagnetic interferences (EMI).

Pin

Assignment for
10/100 Mbps

Assignment for
1,000 Mbps

1

ETx+

TRD(0)+

2

ETx-

TRD(0)-

3

ERx+

TRD(1)+

4

---

TRD(2)+

5

---

TRD(2)-

6

ERx-

TRD(1)-

7

---

TRD(3)+

8

---

TRD(3)-

Pin

Assignment

1

---

2

---

3

DataB(+)

4

DataA(-)

5

GND

6

---

7

---

8

1

8

1

3

2

1

4

5

9

8

7

6

8

---

Danger to life due to electric shock from touching
an ungrounded product
Touching an ungrounded product can cause a lethal
electric shock.

• Ensure that the product is integrated in the existing

overvoltage protection.

• Ground the enclosure of the product.

Pin

Assignment

This manual is related to the following products: