30
Installation MACH102
Release
06
09/2014
To supply the module with PoE voltage you need an external power
supply unit.
Make sure that the external power supply unit you use to provide the
PoE voltage fulfills the following basic prerequisites:
Insulation requirements according to IEEE 802.3af (insulation
resistance 48 V output to “rest of the world” 2250 V DC for 1 min.).
Output power < 250 W and sufficient to provide the power for the
connected PDs.
Current limitation < 5 A or fuse 5 A slow blow.
Figure 20: Connecting the supply voltage via the 3-pin terminal block
1 - Fastening screw for functional earth
2 - Fastening screw for supply voltage: -
3 - Fastening screw for supply voltage: +
4 - Connection for functional earth
5 - Connection for supply voltage: -
6 - Connection for supply voltage: +
Note: Relevant for North America:
The tightening torque of the terminal block screws is 3 lb in. (0.34 Nm).
Note: Make sure the following requirements are met:
Supply line length < 3 m
Supply line cross section is suitable for 5 A
Pull the terminal block(s) off the switch and connect the voltage supply
lines as follows:
First connect the protective conductor to the protective conductor
terminal.
Connect the PoE voltage to the 3-pin terminal block.
2.1.8 Operating the device
By connecting the voltage supply via the voltage supply socket(s), you start
the operation of the device.
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