AL3100
Ethernet switch
10
0 5 10 15 20 25 30 35 40 45 50 55 60
2
4
6
8
10
12
14
16
65 70 75
Temperature [°C]
Current [A]
1
2000 m
1: I
US-daisy-chain
/ I
UA-daisy-chain
6.5 Ground connection
The FE potential is connected to the following points of the device:
•
Upper mounting lug of the housing
•
Ports XD1 and XD2: Pin 5 (FE)
u
To ensure the protection of the device against electrical interference and to ensure the safe
function of the device, the housing has to be connected to ground of the supply using the
shortest possible route.
When using a 4-pole L-coded M12 connector (recommended):
u
Ground the device via the mounting screw of the upper mounting lug.
When using a 5-pole L-coded M12 connector:
u
Ground the device via the mounting screw of the upper mounting lug.
u
Connect pin 5 of the port XD1/ XD2 via an L-coded M12 connector with functional earth.
6.6 Voltage supply
The device is connected to the supply voltage US via the power IN port. The supply voltage US
supplies the device with voltage.
Optionally, an additional supply voltage UA can be fed to the device via port power IN. UA is used
exclusively to supply additional devices via port power OUT (daisy chain).
Max. current consumption: 100 mA (12 V) / 50 mA (24 V)
Port XD1 has overvoltage protection (US).
The port XD1 has reverse polarity protection (US).
The port XD1 has cross reverse polarity protection (US, UA).
The port XD1 has an inrush current limitation.
Wiring:
3
1
4
2
5
1: +24 V DC (US)
2: GND (UA)
3: GND (US)
4: +24 V DC (UA)
5: FE
u
Disconnect power.
u
Connect the device via port XD1 to supply voltage US with 12 / 24 V DC (8…32 V SELV according
to DIN 60950).