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© 2008 RuggedCom Inc. All rights reserved Rev106
4.6.2 RJ45 Twisted-Pair Data Ports
The M2100 series switches may have several 10/100BaseTX ports that allow connection to
standard CAT-5 UTP cable with RJ45 male connectors. The RJ45 receptacles are directly
connected to the chassis ground and can accept shielded CAT-5 cables. If shielded cables are
used, care must be taken to ensure the shielded cables do not form a ground loop via the shield
wire and the RJ45 receptacles at either end.
Pin Signal
1RX+
2RX-
3TX+
4 No Connection
5 No Connection
6TX-
7 No Connection
8 No Connection
Figure 16: RJ45 port pins configuration
Note : pin4 and pin5 are internally connected on PCB board, pin7 and pin8 are internally
connected board on PCB board.