34
Installation MSP30/32/40/42 and MSM20/22/24/40/42/46/50
Release
12
06/2018
The PoE ports allow the connection and remote supply of, for example, IP
telephones (Voice over IP), webcams, sensors, printer servers and
WLAN access points. With PoE, power is supplied to these terminal
devices through the twisted pair cable.
The PoE support complies with the following technical standards:
In accordance with IEEE 802.3af and IEEE 802.3at:
Endpoint PSE
Alternative A.
The following applies to PoE ports:
The PoE power is supplied via the wire pairs transmitting the signal
(phantom voltage).
The individual ports (joint PoE voltage) are not electrically insulated
from each other.
Note: The basic devices MSP32 and MSP42 support a PoE power
budget of 120 W. You cannot expand the PoE power budget of the MSP
basic devices with MSM46-T1T1T1T1... media modules.
You find the maximum PoE power output in table 45 on page 86.
Note: The PoE/PoE+ power supply of the PoE media module MSM46-
T1T1T1T1... takes place using an external power supply unit. The
external power supply unit for the PoE supply voltage is connected to the
device via a 3-pin terminal block. When you install the media module
MSM46-T1T1T1T1... on a MSP basic device without internal PoE power
supply (MSP30, MSP40), the media module allows you to supply external
devices with PoE voltage.
In the following table you find more information on the pin assignment of
the external supply voltage of the media module MSM46:
Standard Description
IEEE 802.3af Brief description PoE
Classes max. Powered Device (PD) class 0 (15,4 W)
IEEE 802.3at Brief description PoE+
Classes max. Powered Device (PD) class 4 (30 W)
Table 19: PoE support: technical standards
Figure Pin
1Case
2GND
354VDC
Table 20: 3-pin terminal block pin assignment
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