SMA SUNNY TRIPOWER CORE1 - Page 37

6 Electrical Connection
SMA Solar Technology AG
Operating manual STP50-40-BE-en-15 37
Network cable requirements:
The cable length and quality affect the quality of the signal. Observe the following cable
requirements.
☐ Cable type: 100BaseTx
☐ Cable category: minimum CAT5e
☐ Plug type: RJ45 of Cat5, Cat5e or higher
☐ Shielding: SF/UTP, S/UTP, SF/FTP or S/FTP
☐ Number of insulated conductor pairs and insulated conductor cross-section: at least 2 x 2 x
0.22 mm²
☐ Maximum cable length between two nodes when using patch cables: 50m (164ft)
☐ Maximum cable length between two nodes when using installation cables: 100m (328ft)
☐ UV-resistant for outdoor use.
Procedure:
1.
DANGER
Danger to life due to electric shock
• Disconnect the inverter from all voltage sources (see Section9, page79).
2. If the enclosure lid of the DC-Connection Unit is
closed, remove it as follows: Unscrew all ten screws
with a Torx screwdriver (TX25) and remove the
enclosure lid carefully forward.
10x
3. Set the screws and the enclosure lid aside and store safely.
4. Remove the swivel nut from the cable gland for the communication cable.
5. Thread the swivel nut over the network cable.
6. Remove the two-hole cable support sleeve from the cable gland.
7. Remove the sealing plug from one of the enclosure openings of the two-hole cable support
sleeve and insert the network cable into the enclosure opening.
8. Press the two-hole cable support sleeve with the cable into the cable gland and guide the
network cable to the communication assembly in the DC Connection Unit. Ensure that any
unused enclosure openings of the two-hole cable support sleeve are sealed with sealing plugs.
9. When using a self-assembly network cable, assemble the RJ45 connectors and connect them
to the network cable (see connector documentation).