However, doing this negates the shielding at a point where the signal would be the most vulnerable to interference.Ĭonversely if you have UTP cable and try to put it in an RJ48 connector the cable itself will be loose causing strain on the connectors. If you have STP cable trying to put it in a RJ45 connecter will be difficult as the shielding would have to be removed in order for the cable to fit in the connector. RJ45 is designed for UTP (Unshielded Twisted Pair) Cable (thinner) The difference is: RJ48 is designed for STP (Shielded Twisted Pair) Cable (thicker) RJ45/RJ48 uses 8 pins & 8 connectors - Yet not compatible. In simple terms: RJ45/RJ48 has their own "pinout" used to wire the modular plugs. RJ45 is connected with UTP cable while RJ48 uses STP.RJ45 is predominantly used in LAN while RJ48 is more commonly seen on T1 lines.RJ45 differs from RJ48 in the way they are wired.
To protect the integrity of the signal, RJ48 wirings use STP or Shielded Twisted Pair cables. RJ48 is used in T1 data lines where the wires can extend longer distances and are often exposed to the environment. It uses the more common UTP or Unshielded Twisted Pair that have categories 1 to 6, with cat5e being the most predominantly used.
RJ45 is used mainly in local area networks where the distances between each network element is relatively short. Other wires are also used for extra shielding while the remaining wires are reserved in case some uses would arise in the future.
One configuration uses the pins 1,2,4, and 5 while another uses 1,2,7, and 8. With RJ48, there are a few configurations that can be used depending on the situation and how they are to be used. The RJ45 that we are already very familiar with uses the pins 1,2,3, and 6 for receiving and transmitting data. Both RJ48 and RJ45 use the 8P8C modular plug and 2 pairs of the wires, one pair for transmitting and one pair for receiving data.
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