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6 Electrical ConnectionSMA Solar Technology AG <br />Installation Manual SBxx-1SP-US-41-IA-xx-12 35 <br />Network cable requirements: <br />The cable length and quality affect the quality of the signal. Observe the following cable <br />requirements. <br />☐ Cable type: 100BaseTx <br />☐ Cable category: minimum CAT5e <br />☐ Plug type: RJ45 of Cat5, Cat5e or higher <br />☐ Shielding: SF/UTP, S/UTP, SF/FTP or S/FTP <br />☐ Number of insulated conductor pairs and insulated conductor cross-section: at least 2 x 2 x <br />0.22 mm² <br />☐ Maximum cable length between two nodes when using patch cables: 50 m (164 ft) <br />☐ Maximum cable length between two nodes when using installation cables: 100 m (328 ft) <br />☐ UV-resistant for outdoor use. <br />Procedure: <br />1. DANGER <br />Danger to life due to electric shock <br />• Disconnect the inverter from all voltage sources (see Section 8, page 61). <br />2. Remove the sealing plugs from the network connection opening on the inverter. <br />3. Insert the conduit fitting into the opening and tighten from the inside using the counter nut. <br />4. Attach the conduit to the conduit fitting. <br />5. Lead one end of each network cable from the conduit into the inverter. <br />6. Put the network plug of each cable into one of the <br />network sockets of the communication assembly. <br />D-IN SPSA B <br />FCC ID: SVF-KP20 IC: 9440A-KP20 <br />Max. 30V DC <br />USB <br />SPS <br />A <br />B <br />D-IN <br />7. Ensure that the network connector is securely in place by pulling slightly on each cable. <br />8. Connect the other end of the network cable to the energy meter. <br />6.4 Connecting the Multifunction Relay <br />6.4.1 Procedure for connecting the multifunction relay <br />Procedure See <br />1. Select for which operating mode you would like to use the <br />multifunction relay. <br />see section 6.4.2, <br />page 36 <br />EN <br />G <br />L <br />I <br />S <br />H <br />534 S Sycamore St <br />- 10110979707/01/22