66 punch block

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 Question by phil graz posted 25 Jan 2005
 66 punch block
are the numbers of the pins 1 through 50 from top to bottom? when a ksu from nortel says pin 1 & 26 are they actually using the first and 26th pins in the block?
 Answer by Joseph Golan posted 28 Jan 2005
Dear phil,
The pins for a 66 block are numbered from top to bottom (Hint: The top has the screw tab going left and the bottom has the screw tab facing down.

Typically the instruction to use pins 1 & 26 are refering to the first pair of a 25 pair amphenol connectors (RJ-21x) and not a 66 block. Pins 1 & 26 are really the first pair (White/Blue) which sit side by side, pins 2 & 27 are the second pair (White/Orange), etc. The numbers of the an amphenol connector has nothing to do with the pin numbering of a 66 block.

Joseph Golan, RCDD

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