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Network Interface Blocks

Network Interface Blocks Enlarge this image
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Part Number Part Numbers


Siemon's S66 network interface blocks are ideally suited as an RJ21X interface between service providers (SPs) and the customer premise.

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Part Numbers

700A-66-B1-25 (Picture) Same as S66M1-50R except it uses S89B bracket and color-coded 25-pair cable between 25-pair connector and S66™ quick clips.
M1-50R (Picture) The M1-50 block with one female 25-pair connector is oriented for bottom cable entry and pre-wired to Row D. Uses S89D bracket (included) and blue/white wiring between 25-pair connector and S66 quick clip. Orange hinged cover included.

Add "M" for male connector.


Because we continuously improve our products, Siemon reserves the right to change specifications and availability without prior notice

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