SMA Solar Technology AG
5.6 Technical Data of the
Communication Interface
Interface
Parameters
Ethernet
Cable
RJ45 connector: 2 pcs. RJ45
for Ethernet
Galvanic interface insulation
Direct protection against
contact
Short-circuit protection
Communication
Cable
Max. number of inverters
Table 5.10 Technical data of the communication interfaces
1)
(see Section 2.8 "Ethernet Connections", page 27)
5.7 Ethernet Connections
Figure 5.4 Pin assignment of the RJ45 plug for Ethernet
Installation Guide
Parameter details
Cable sheath diameter ( ⌀ )
Cable typ
Cable characteristic
impedance
Wire size
Cable shield termination
Double/reinforced insulation
Network Topology
Max. cable length between
inverters
Per SMA Inverter Manager
Pin
assignment
Ethernet
1. RX+
2. RX
3. TX+
4.
5.
6. TX-
7.
8.
Specification
2 x 5 to 7 mm
STP cable (Shielded Twisted Pair,
CAT 5e or SFTP CAT 5e)
100 Ω to 120 Ω
0.14 to 0.25 mm² (depending on
the design of the RJ45 plug)
Via RJ45 plug
Yes, 500 Vrms
Yes
Yes
Star connection, ring connection
and daisy chain
100 m
42
Color standard
Cat. 5
Cat. 5
T-568A
T-568B
Green/white
Orange/white
Green
Orange
Orange/white
Green/white
Blue
Blue
Blue/white
Blue/white
Orange,
Green
Brown/white
Brown/white
Brown
Brown
SHP75-10-STP60-10-IA-xx-18
5 Technical Data
1)
47