Network hardware interfaces pinouts
used to connect a Bridge or Router to a 56K, CSU/DSU Network, T1, T3

The RJ-48 connector look very similar to a RJ-45 connector drawn. But its different. RJ-48 connections are made with a STP (Shielded Twisted Pair) cable (not UTP - Unshielded Twisted Pair). RJ-48 uses a pin out arrangement, voltage level, and line capacitance different from a typical RJ-45.
 

RJ-48S Jack Connector pinout
Pin Signal Description
1 R1 transmit ring to network
2 T1 transmit tip to network
3   not used
4   not used
5   not used
6   not used
7 T receive tip from network
8 R receive ring from network


 

RJ-48C Jack Connector pinout
Pin Signal Description
1 R1 transmit ring to network
2 T1 transmit tip to network
3   not used
4 T receive ring from network
5 R receive tip from network
6   not used
7   not used
8   not used

Cable for conection of WAN port with wall outlet is shielded (STP) straightforward (R to R, T to T) with R with T, R1 with T1 wires twisted.

8 pin RJ45 (8P8C) male connector layout
8 pin RJ45 (8P8C) male connector
at the cable (RJ-48 used)
8 pin RJ45 (8P8C) female connector layout
8 pin RJ45 (8P8C) female connector
at the device or outlet (RJ-48 used)
According to 3 reports in our database (0 positive and 2 negative) this pinout may be incorrect.

Is this pinout
Source(s) of this and additional information: Bytepile.com
This page contain parts under Copyright © 2000-2015 by pinouts.ru team.
No portion of this webpage may be reproduced in any form without providing visible HTML link to Old.Pinouts.ru . Webmaster permission required in any other cases.
Efforts have been made to ensure this page is correct, but it is the responsibility of the user to verify the data is correct for their application.