RJ48 wire Schematic
The RJ48 connector is a data communication interface that uses twisted pair cables and 8P8C modular jacks. The plug and socket are the same as the RJ-45, but the pin arrangement of the two is different. RJ48 is mainly used for T1 and ISDN terminals, LAN data channels, and sub-rate digital services. The RJ48 connector is fixed on a shielded twisted pair (STP) cable instead of the unshielded twisted pair (UTP) commonly used in other installations.
RJ48 can be divided into RJ48C, RJ48X, and RJ48S.
RJ48C is commonly used for T1 lines, using pins 1, 2, 4, and 5. It is commonly used for the transmission of Out of Band Signaling and AMI (Alternate Mark Inversion) encoding, as well as single-ended grounding configuration.
RJ48X is used to transmit T1 or E1 digital signals, commonly used in telecommunications and data communications, with shielding and anti-interference capabilities. Also known as a loop-through jack.
RJ48S uses pins 1, 2, 7, and 8 and is commonly used for T1 (1.544 Mbps) and E1 (2.048 Mbps) digital lines, such as LAN data channels and sub-rate digital services. Designed specifically for single-ended grounding. It has higher electrical specifications and grounding requirements.
