User manual

Startup and Functions
6874_en_09 PHOENIX CONTACT 3-19
3.2.5.4 Glass Fiber Connection Between Devices
3.2.6 FL IF TX/POF 10/100 ...
3.2.6.1 Default Upon Delivery
When the interface modules are inserted, the auto negotiation and auto crossing functions
are activated for the twisted pair port, and the auto negotiation function is activated for the
POF port. Port monitoring is not activated for the two ports.
3.2.6.2 Functions of the POF Interface
– Line monitoring
According to standard IEEE 802.3, the switch monitors the connected fiber optic
cables for interrupts.
– 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/100 Mbps data transmission rate and half/full duplex transmission mode) for
its F-SMA 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.
3.2.6.3 Functions of the Twisted Pair Interface
– 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/100 Mbps data transmission rate and half/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.
When connecting two glass fiber interface modules, note the signal direction of the fiber
optics. The fiber connection is always from the transmitter to the receiver.
The maximum length of the glass fiber cables depends on the fiber type used.
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.
Ports that are not being used are considered cable interrupts. In addition, a POF 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.