Barox L Series, Руководство по эксплуатации, Страница: 12 / 69

barox Kommunikation 12
3.6 Port Configuration
The ports are set to Auto mode when they leave the factory. Auto -negotiation is the procedure
which allows two connected Ethernet network ports to independently negotiate and configure the
highest-possible transmission speed as well as the duplex mode. This p rocedure only applies to
twisted pair cables
− not to fibre optic connections.
Nevertheless, in some cases the terminal device may not be correctly recognised. This
sometimes occurs when using a camera with a 100 Mbps interface. In this case, the port
must be manually set to 100 Mbps.
If a port is not to be used for security reasons, this can be disabled completely. In this case,
the configuration mode should be set to “Disabled”.
3.6.1. SFP Port
The SFP ports are also equipped with an Auto mode. This is different to the auto -negotiation
procedure used by copper ports. SFP ports are only capable of recognising the transmission
speed through auto-negotiation and only support full duplex mode.
In some cases, a switch may not correctly detect whether an SFP is a 100 Mb or 1000 Mb model
which will prevent the latter from functioning. In such cases, the port data rate needs to be set
manually.
The SFP ports of the switches are not coded. This m eans that SFPs supplied by other
manufacturers can be used
− whereby no guarantee is supplied that these will function properly.
The barox Kommunikation product range includes SFPs for multi and single mode fibres with
transmission speeds of 100 Mbps, 1 Gbps and 10 Gbps. Distances of between 550 m and
120 km can be achieved depending on the type of fibre and transmission speed.
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Please also refer to http://www.barox.ch/cm/produkte/product/ip-produkte/zubehoer/ac-sfp