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Product designation
3-26
PHOENIX CONTACT
6874_en_16
–
Auto crossing
There is no need to distinguish between 1:1 and crossover cables, as the transmit and
receive cables are crossed automatically.
–
Auto polarity
The polarity is changed automatically by the switch if a pair of twisted pair receive
cables (RD+ and RD-) are connected incorrectly.
–
Line monitoring
The switch uses link test pulses according to standard IEEE 802.3 at regular intervals
to monitor the connected TP/TX cable segments for short circuits and interrupts.
3.3.9.3
Network connection
See "FL IF 2TX VS-RJ ..." on page 3-10 and onwards.
3.3.9.4
Connecting the 48 V PoE supply voltage
Connecting the PoE supply
The connector for the PoE supply is located on the bottom of the interface module. Please
observe the keying on the connector when inserting it.
The module has a green LED for each port, which indicates the PoE mode. The LED is
active if the PoE supply
and
a PD (powered device) are connected. The LED flashes if the
module is supplied with less than 48 V.
Figure 3-17
Connecting the PoE voltage connector
Auto crossing is only available if auto negotiation is activated.
Ports that are not being used are considered cable interrupts. In addition, a TP/TX path to
a deactivated termination device is also considered a cable interrupt, as the connected
device cannot send a link test pulse because it is switched off.
The PoE configuration options are also available if no PoE interface module is inserted. If
a PoE interface module is inserted, the configuration is transmitted to the module after a
few seconds.
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RSPSupply - 1-888-532-2706 - www.RSPSupply.com
http://www.RSPSupply.com/p-14178-Phoenix-Contact-2832357-FL-IF-2TX-VS-RJ-D-Media-Module-for-Modular-Switch.aspx