SMA SC 100 Indoor Installation - Manual (Page 32)

Electrical Connection SMA Solar Technology AG
32 SC-100-IEN093231 Installation Guide
7.1.5 Inverter Communication Connection
The device can be equipped with various interface cards (Net Piggy Back) for the communication
between the inverter and a PC or modem.
The data can be transferred using the following Net Piggy Back versions:
• Analog
• ISDN
• Ethernet
• GSM (combining Net Piggy Back Ethernet + GSM router)
The data cable is connected via the NET interface (RJ45 socket), see figure 7.3.
The length of the data lines must be taken into account when planning or establishing the
communication. An optimum and project-related plan for the data transfer should be coordinated with
SMA.
7.1.6 Shield Contact Handling Instructions
The external signal and bus cables must be shielded. The shield must contact the shield rail, provided
for this purpose, along a large surface area. Contact is achieved using the shield clamps provided in
the accessories kit. The correct handling of the shield clamps is shown in the following figure. The
shield clamps must only be hand-tightened, never use a screwdriver. Screwing the clamps with a
screwdriver can damage the cable insulation.
Figure 7.5: Handling the shield clamps (source: Wago)
Do not screw in the shield clamps with a screwdriver, hand-tighten only.