TP-Link TG-3468 - Manual (Page 9)

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Chapter 3 Connection to the Network
3.1 Transmission Distance
When this device was connected with the other devices which are
also compatible with IEEE802.3, the connection distance is up to
100 meters.
3.2 Cable Category and Line Sequence
The transmission speed of this device can reach to 10Mbps with
Category 3/4/5 cable. If the network is in the speed of
100/1000Mbps, you need a twisted-pair Category 5 cable or
above .The long usage of Category 3/4 may lead the data miss-
ing.
Every port of this device has the line auto-crossing function, so it
can be connected with the other network devices in any line
sequence (straight-through or cross-over line).