SMA SC 500HE-US Installation - Manual (Page 41)

SMA America, LLC 7 Connecting Optional Communication Devices
Installation Manual SC500HEUS-IA-US_en-14 41
7.2 Connecting the Sunny SensorBox (optional)
This section describes how to connect the Sunny SensorBox to the Sunny Sensor 485Hub in the
Sunny Central.
Data cable
The data cable for the connection of the Sunny SensorBox to the Sunny Sensor 485Hub must meet
the following requirements:
• The data cable must not be longer than 4,000 ft (1,200 m).
• Use:
– cables with a section of 2 x 2 x AWG 24 (2 x 0.25 mm
2
)
– shielded twisted pair cables
7.2.1 Connecting the Data Cable of the Sunny SensorBox
Connect the data cable to the socket (A) on the bottom of the Sunny Sensor 485Hub.
1. Open the Control and Interface Cabinet as
described in section 10.1.
2. Route the data cables separately from AC and DC
cables. Draw the data cable into the Sunny Central
(see section 6)).
3. Remove the insulation of the data cable by approx.
2.4 in. (60 mm) and uncover the shield.
4. Uncover the wires about 1.8 in. (45 mm).
5. Strip the wires about 0.2 in. (5 mm).
Data Cable Recommendation
SMA also provides data cables. Please contact your electrician or wholesaler.
SUNNY SENSOR
485HUB
SSB
Communication
Activity
Activity
Pow er
Pow er
+12V GND D+ D–
A