SMA SUNNY WEBBOX - Manual (Page 36)

Commissioning SMA Solar Technology AG / SMA America, LLC
36 SWebBox-BA-en-36 User Manual
8. Press the upper half of the cable enclosure onto the
lower half of the cable enclosure and the plug until
the terminals snap shut.
9. Insert the plug into the "SMA COM" socket of the
Sunny WebBox.
10. Check whether jumpers are connected to "J1B" and
"J1C" on the Sunny WebBox "SMA COM"
connector. The jumpers are connected upon
delivery. If the jumpers are not inserted, connect
them. The jumpers enable signal biasing and
ensure an adequate signal quality on the
RS485 communication bus.