Isolation Between The Tp Ports - Siemens SCALANCE X-300 Manual

Description of the device
4.3 Interfaces and signaling contact of the switches
The PoE ports meet the conditions listed in the IEEE 802.3af / IEEE 802.3at standard
(type 1) for environment A , in other words power supply over Ethernet within a power supply
system. For details of configuring and enabling PoE for individual ports, refer to the
configuration manual SCALANCE X-300 / X-400 on the accompanying CD.
Possible attachments
The XR324-4M PoE is a partially modular device and has 16 fixed ports and 4 slots for
media modules.
● 16 electrical ports
● 8 modular ports via 4 module slots
4.3.1.6

Isolation between the TP ports

All ports meet the requirement of 1.5 kV isolation voltage to the shield and between the ports
(corresponds to IEEE802.3, Environment B).
Note
Exceptions are X307-3, X307-3LD, X308-2, X308-2LD, X308-2LH, X308-2LH+, X310,
X310FE
The following port group is an exception to this:
 Port group 1: P1, P2, P3 and P4
Between the ports of port group 1, the requirements for Environment A are met.
84
– Ports P1 to P8
8 PoE-compliant RJ-45 jacks with securing collars for connection of end devices or
network segments
– Ports P9 to P16
8 RJ-45 jacks with securing collars for connection of end devices or network segments
(no PoE)
Non PoE-compliant end devices can also be connected to the PoE-compliant RJ-45 jacks
because the XR324-4M PoE checks that the end devices are suitable for the PoE
function before applying the power.
4 media modules each with 2 ports are combined optically or electrically via the slots S1
to S4 depending on the application.
End devices and other network segments are connected according to the media modules
being used.
Operating Instructions, 10/2010, A5E01113043-10
SCALANCE X-300