Description
2.3 Different properties for devices with other hardware
SCALANCE W788-xPRO/RR / SCALANCE W74x-1PRO/RR
Operating Instructions (Compact), Release 08/2007, A5E00413342-05
79
Assignment of the power wires with a hybrid cable 2 x 2 + 4 x 0.34
Wire color code (standard)
Brown
Brown
Black
Black
Function
24 V
24 V
Ground
Ground
Power supply insert module
1
2
3
4
Assignment of the power wires with an IE FC TP standard cable 4 x 2 GP
Wire color code (standard)
White / blue
(1)
Blue
White / brown
(1)
Brown
Function
24 V
24 V
Ground
Ground
Power supply insert module
1
2
3
4
(1)
White wire of the pair
Earthing
CAUTION
Damage to the device due to potential differences
There must be no potential difference between the following parts otherwise there is a risk
that the device will be destroyed:
•
Ground potential of the power supply and ground potential of the antenna ground.
•
Ground potential of the power supply and a grounded housing.
•
Ground potential of the power supply and the ground potential of the device connected
to Industrial Ethernet (for example PC, AS-300, AS-400 etc.).
Connect both grounds to the same foundation earth or use an equipotential bonding cable.
Summary of Contents for SCALANCE W744-1PRO
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