SMA Solar Technology AG
Electrical Connection of the Sunny Backup 2200
Technical Description
SBU2200-TEN083320
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7.5 Communication
7.5.1 SBU 2200 and Automatic Switch Box S
The Sunny Backup 2200 communicates with
the Automatic Switch Box S via two CATe-
FTP patch cables (with two RJ45 plugs
each).
These patch cables will be referred to as
communication cables below.
The Sunny Backup 2200 controls the
Automatic Switch Box S via a CAN bus.
Connect the "SyncOut" connection socket of
the Sunny Backup 2200 with the "SyncIn"
connection socket of the Automatic Switch
Box S.
The Sunny Backup 2200 receives the voltage and current measurement signals of the Automatic
Switch Box S through the second communication cable. Connect the "Backup" connection sockets of
both devices using the red communication cable that is provided.
To install the two communication cables, proceed as follows:
1. Place each communication cable into a separate hollowed out section of the internal rubber
insert.
Make sure the cable is long enough to reach from the housing opening to the desired "SyncOut"
or "Backup" connection socket on the circuit board of the Sunny Backup 2200.
2. Pull the communication cables into the housing from the outside.
3. Insert the RJ45 plug of the black communication cable into the "SyncIn" connection socket on
the Sunny Backup 2200. The plug will audibly snap into place.
4. Insert the RJ45 plug of the red communication cable into the "Backup" connection socket on the
Sunny Backup 2200. The plug will audibly snap into place.
Information on installation
1. The communication cable must always be installed separately from the AC cables.
2. Do NOT route the communication cables with the plugs through the membranes.
Threading the plug through would widen the membrane to the point where there
would no longer be a tight seal around the thinner cable.
3. If the provided communication cable is not long enough, then use a standard Cat5e
FTP cable (single shield) with gold contacts instead.
4. The maximum cable length is 30 m. The minimum cable cross-section is AWG26/7.
