4 electrical connection, 1 overview of interface port and cable route, Electrical connection – SMA 485PB-NR User Manual
Page 8: Overview of interface port and cable route
Electrical Connection
SMA Solar Technology AG
8
485PB-SB-NR-IEN101311
Installation Guide
4 Electrical Connection
This section describes the installation and connection of the RS485 Piggy-Back communication
interface. It is assumed that the inverter is situated in the middle of the RS485 communication bus. If
the inverter is situated at the end of the RS485 communication bus, carry out the following steps for
one cable only and connect the termination (see Page 15).
4.1 Overview of Interface Port and Cable Route
For an inverter of type SB/WB
If the communication interface is preinstalled, you can skip Section 4.2 "Installing the
Communication Interface" (Page 10).
SB/WB 700
SB/WB 1100
SB/WB 1100, SB/WB 1100 (E) (LV), SB/WB 1700 (E), SB 2100TL,
SB/WB 2500, SB/WB 2800i, SB/WB 3000
D F E D F E
A
B
C