How many conductors are used in a RJ-21x jack?
A)50
B)8
C)4
D)10

Name: How many conductors are used in a RJ-21x jack? A)50 B)8 C)4 D)10
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50 conductors are used in a RJ-21x jack.
Key Takeaway: RJ-21x jack, also known as the Amphenol 25-pair connector, holds up to 25 T/R lines on a 50 pin Amphenol micro-ribbon connector. This is usually associated with a "66" type punch-down block.

How Many Conductors Are Used in a RJ-21x Jack