Installation OCTOPUS 8M/16M/24M/OS32
Release 11 01/2013
25
2.4.2
Grounding the device
Using functional grounding you achieve an electromagnetically compatible
installation of the device.
Connect the grounding conductor to the grounding screw at the device
housing.
Use toothed washers to ensure good electrical conductivity at the
connection.
Note:
The shielding ground of the connectable twisted pair lines is connected
to the housing as a conductor.
2.5
Connecting the PoE supply voltage
(optional)
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 < 150 W
Current limitation < 5 A
Power supply unit and PoE media module form a “limited power
source” according to IEC 60950-1.
The external PoE power supply unit provides the power for the
connected PDs.
10 ms failure bridging (incl. Powered Devices) in accordance with EN
61131-2
CE marking in accordance with 2004/108/EG
Meets requirements of EN 50155 – electronic systems in railway
vehicles
Connect the PoE voltage to the 5-pin M12 connector included in the
scope of delivery.
Fulfill the following conditions:
Supply line length < 3 m
Cross section of the supply lines
≥
0.75 mm
2
or AWG 18.
Note:
Do not operate the OCTOPUS ... PoE... and OS32... devices in series.
Only connect single external power supply units directly to an OCTOPUS...
PoE... or OS32... device.
Содержание OCTOPUS 8M Series
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