RJ48C, RJ48S, RJ48X - T1 Jacks - Cable

RJ48C and RJ48S RJ48X 8 position jack pin out for T1 cable termination and local area data
channels/subrate t1 digital services

Pin outs for T1 Cable and cross over cable
T1 Cable can be a RJ48 or a simple RJ 8 pin
depending on the correct wiring


RJ48C

UNIVERSAL SERVICE ORDER CODE (USOC): RJ48C

Mechanical Arrangement: Miniature 8-position jack. Typical Usage: 1.544 Mbps digital services.
Electical Network Connection: T&R, T1 R1, conductors 7 and 8 provide cable shield integrity.
Conductors 3 and 6 are reserved for future use.

Rj-48c.gif (12039 bytes)


RJ48S
DDS Telco on RJ45

UNIVERSAL SERVICE ORDER CODE (USOC): RJ48S

Mechanical Arrangement: Miniature 8-position keyed jack.
Typical Usage: Local area data channels/subrate digital services.
Electrical Network Connection: One or two line T&R or T&R, T1.

Rj48s.gif (8276 bytes)


RJ48X


Understanding USOC and what those RJ codes really mean. The Universal Service Ordering Code (USOC) system was developed by the Bell System and introduced by AT&TO in the 1970s to connect customer premises equipment to the public network. These codes, adopted in part by the FCC, Part 68, Subpart F, Section 68.502, are a series of Registered Jack (RJ) wiring configurations for telephone jacks that remain in use today.



 


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