SMA PPM-10 - Connecting the Data Acquisition Module Via Optical Fibers

6 Electrical Connection
SMA Solar Technology AG
Installation Manual 49PPM-10-IA-en-16
2. Attach the modules on the front side using 2 screws each.
3. Connect the patch cables. Observe the send and receive direction of the optical fibers.
6.5.3 Connecting the DataAcquisitionModule via Optical Fibers
If an increased exposure due to electromagnetic interferences is to be expected for the internal communication
network of the hybrid system, the use of optical fibers is recommended. The optical fiber terminal, however, is optional
and is not available in the basic configuration of the product.
CAUTION
Risk of injury to eyes from laser light due to improper handling of optical fibers
Laser light can directly enter the eye during improper handling of optical fibers. Direct incident laser light may
damage the eye and can lead to permanent retina damage.
• Never look directly into optical-fiber jacks or connected optical fibers.
• Ensure that optical fibers are not connected to any active sources before performing any work. To do this,
disconnect the connected devices.
• Always seal unused jacks or plugs with protective caps.
NOTICE
Damage to optical fibers due to too tight bend radii
Excessive bending or kinking will drop below of the permissible bend radii. When dropping below the permissible
bend radii, the optical fibers may be damaged.
• Observe the minimum permissible bend radii of the optical fibers.
Cable requirements:
• Type of plug: SC
• Optical fiber type: multimode
• Maximum cable length with multi-mode: 2000m (6561ft)
Requirements:
☐ A splice box must be present to connect the product to the internal communication network.
☐ The requirements for the internal communication network must be observed.
Procedure:
1. Select a suitable cable entry on the flange plate of the DataAcquisitionModule and break through using a sharp
object. Here, the resulting hole must be smaller than the diameter of the cable (see DataAcquisitionModule
installation manual).
2. Open the plug of the optical fiber and lead the 2 optical fibers through the cable entry in the
DataAcquisitionModule enclosure. Here, the cable entry in the flange plate must fully enclose the optical fiber
3. Remount the plug with the 2 optical fibers.
4. Clean optical surfaces (e.g. front side of the plug). For this purpose, use a cleaner with bound nitrogen (e.g.
methyl or ethyl alcohol).
5. Connect the duplex plug to the jack 1 or 2 on the network switch K31 of the Data Acquisition Module. Ensure the
transmission direction is correct.
6. Make sure that all unused jacks are sealed with protective caps.