RCDD · Question #344
The RJ-45 is now known as the 8P8C style connector, per the Telecommunications Industry Association (TIA) standard. What does the P and C stand for?
The correct answer is C. Position and contact. Per the Telecommunications Industry Association (TIA) standard, the connector commonly called RJ-45 is formally designated 8P8C, meaning 8 Position, 8 Contact. 'Position' refers to the number of physical slots or channels in the connector body (8 possible slot locations), and…
Question
The RJ-45 is now known as the 8P8C style connector, per the Telecommunications Industry Association (TIA) standard. What does the P and C stand for?
Options
- APlug and connector
- BPosition and connector
- CPosition and contact
- DPlug and contact
How the community answered
(33 responses)- A3% (1)
- B15% (5)
- C73% (24)
- D9% (3)
Explanation
Per the Telecommunications Industry Association (TIA) standard, the connector commonly called RJ-45 is formally designated 8P8C, meaning 8 Position, 8 Contact. 'Position' refers to the number of physical slots or channels in the connector body (8 possible slot locations), and 'Contact' refers to the number of actual electrical conductors (metal pins/contacts) present and wired in the connector. In a true 8P8C connector, all 8 positions are occupied by 8 contacts, which is the configuration used for Ethernet (Cat 5e, Cat 6, etc.) cabling. The distinction matters because other modular connectors (like RJ-11 for phone lines) may have fewer contacts than positions - for example, a 6P2C connector has 6 positions but only 2 contacts.
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