Fiber media converters break the 100-meter limitation of Ethernet cables in data transmission. Relying on high-performance switching chips and large-capacity caches, they can ensure high security and stability during data transmission. Therefore, fiber media converters will still be an indispensable part of actual network construction for a long time. So, how to choose a fiber media converter? Let’s take a look.
1. Port function test
Mainly test whether each port can work normally in the duplex state of 10Mbps, 100Mbps and half-duplex state. At the same time, it should be tested whether each port can automatically select the highest transmission speed and automatically match the transmission rate of other devices. This test can be included in other tests.
2. Compatibility test
It mainly tests the connection ability between the fiber media converters and other devices compatible with Ethernet and Fast Ethernet (including network card, HUB, Switch, optical network card, and optical switch). The requirement must be able to support the connection of compatible products.
3. Cable connection characteristics
Test the fiber media converter’s ability to support network cables. First, test the connection ability of Category 5 network cables with lengths of 100m and 10m, and test the connection ability of different brands of long Category 5 network cables (120m). During the test, the optical port of the media converter is required to have a connection capability of 10Mbps and a rate of 100Mbps, and the highest must be able to connect to a full-duplex 100Mbps without transmission errors. Category 3 twisted pair cables may not be tested. Subtests can be included in other tests.
4. Transmission characteristics (transmission loss rate of data packets of different lengths, transmission speed)
It mainly tests the packet loss rate when the media converter’s electrical and optical port transmits different data packets and the connection speed under different connection rates. For the packet loss rate, you can use the test software provided by the network card to test the packet loss rate when the packet size is 64, 512, 1518, 128 (optional) and 1000 (optional) bytes under different connection rates. , the number of packet errors and the number of packets sent and received must be more than 2,000,000. The test transmission speed can use perform3, ping, and other software.
5. The compatibility of media converter to the transmission network protocol
It mainly tests the compatibility of fiber optic transceivers to network protocols, which can be tested in Novell, Windows, and other environments. It is necessary to test the following low-level network protocols TCP/IP, IPX, NETBIOS, DHCP, etc., and test the protocols that need to be broadcast. Optical transceivers are required to support these protocols (VLAN, QOS, COS, etc.).
6. Indicator status test
Test whether the status of the indicator light is consistent with the description of the panel and the user manual, and whether it is consistent with the current status of the media converter.
Well, the above are some precautions for choosing a fiber media converter. If you want to know more about fiber media converters, welcome to consult.