SMA SB 700U - Manual (Page 43)

SB700U-11:SE3207 SMA America 4-19
3. Install a jumper in position A, the bottom set of pins on the communication
jumper block, to set it for termination.
Note: The termination of the other end of the RS-485 cable
will depend on what type of device you’re connecting to. For
detailed information, please see the Tech Updates section of
our web site at www.sma-america.com There you will find
tech notes on all of the Sunny Boy communication options.
Figure 4-9 Detail of RS-485 Termination and Jumper Settings
RS-485 Pinouts
2 - A (+)(Data+)
7 - B (-) (Data-)
5 - SR (Signal Ref.)