User manual

Startup and Functions
6874_en_09 PHOENIX CONTACT 3-25
- No PoE interface module detected at this port
- No hardware support due to the system bus
- Detected class of a connected termination device (Class 0 to Class 4)
- Output voltage and output current
3.2.9.1 Default Upon Delivery
When the interface modules are inserted, the auto negotiation and auto crossing functions
are activated. Link monitoring for the twisted pair ports is not activated.
3.2.9.2 Functions
– Auto negotiation
Auto negotiation is a method whereby the switch automatically detects the operating
parameters for the connected network and sets the corresponding parameters
(10 Mbps or 100 Mbps data transmission rate and half or full duplex transmission
mode) for its RJ45 ports. Automatic port setting eliminates the need for manual
intervention by the user. The auto negotiation function can be activated/deactivated
via the web interface.
– 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.
3.2.9.3 Network Connection
See "FL IF 2TX VS-RJ ..." on page 3-9 and onwards.
Hot plugging
When inserting and removing interface modules, you do not have to switch off the supply
voltage. The interface modules are detected automatically and logged to the network
management.
If an interface module is inserted in an MMS that has already been parameterized, the
existing configuration remains active.
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.