Connection
5.2 Power supply
SCALANCE W774-1 /W734-1
Operating Instructions, 07/2020, C79000-G8976-C325-14
39
SCALANCE W774/W734 RJ-45
For the power supply, there are two options with the SCALANCE W774/W734:
•
Direct feed in via the four-pin socket (position
①
)
For the direct feed-in power supply use copper cables with the following properties:
–
Round cable cross-section with 6 to 8 mm diameter.
–
Two-wire cable with 0.5 to 1.5 mm2 cross-section per wire.
–
Permitted tensile load at least 100 N. - UL
–
Listing of the cables according to the national installation regulations. In areas
where NEC or CEC applies: Type PTLC or ITC
•
Power over Ethernet via the RJ-45 Ethernet interface P2 (position
②
). The other
Ethernet interface P1 is not capable of PoE.
The four-pin connecting socket has the following pin assignment:
Pin
Assignment
L1+
24 VDC
M1
Ground
M2
Ground
L2+
24 VDC
