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- 66_block abstract "A 66 block is a type of punchdown block used to connect sets of wires in a telephone system. They have been manufactured in three sizes, A, B and M. A and B have six clips in each row while M has only 4. The A blocks spaced the rows further apart, and has been obsolete for many years. The B style is used mainly in distribution panels where several destinations (often 1A2 key telephones) need to connect to the same source. The M blocks are often used to connect a single instrument to such a distribution block. 66 blocks are designed to terminate 22 through 26 AWG solid copper wire. The 66 series connecting block, introduced in the Bell System in 1962, was the first terminating device with insulation displacement connector technology. The term 66 block reflects its Western Electric model number.The 25-pair standard non-split 66 Block contains 50 rows; each row has four (M) or six (B) columns of clips that are electrically bonded. The 25-pair "Split 50" 66 Block is the industry standard for easy termination of voice cabling, and is a standard network termination by telephone companies–generally on commercial properties. Each row contains four (M) or six (B) clips, but the left two (or three) clips are electrically isolated from the right two (or three) clips. Smaller versions also exist with fewer rows for residential use.66 blocks are available pre-assembled with an RJ-21 female connector that accepts a quick connection to a 25-pair cable with a male end. These connections are typically made between the block and the customer premises equipment (CPE).".
- 66_block thumbnail 66_block.JPG?width=300.
- 66_block wikiPageExternalLink open?id=0B8_JQzGGBEq0OWVLdW1URC1yV1E.
- 66_block wikiPageID "1755751".
- 66_block wikiPageLength "4546".
- 66_block wikiPageOutDegree "30".
- 66_block wikiPageRevisionID "620855362".
- 66_block wikiPageWikiLink 10BASE-T.
- 66_block wikiPageWikiLink 110_block.
- 66_block wikiPageWikiLink 25-pair_color_code.
- 66_block wikiPageWikiLink American_wire_gauge.
- 66_block wikiPageWikiLink Bell_System.
- 66_block wikiPageWikiLink Cat_5.
- 66_block wikiPageWikiLink Category:Local_loop.
- 66_block wikiPageWikiLink Category:Telephony_equipment.
- 66_block wikiPageWikiLink Category_3_cable.
- 66_block wikiPageWikiLink Category_5_cable.
- 66_block wikiPageWikiLink Customer-premises_equipment.
- 66_block wikiPageWikiLink DS0.
- 66_block wikiPageWikiLink DSL.
- 66_block wikiPageWikiLink Demarcation_point.
- 66_block wikiPageWikiLink Digital_Signal_0.
- 66_block wikiPageWikiLink Digital_subscriber_line.
- 66_block wikiPageWikiLink Distribution_frame.
- 66_block wikiPageWikiLink Ethernet_over_twisted_pair.
- 66_block wikiPageWikiLink Insulation-displacement_connector.
- 66_block wikiPageWikiLink Insulation_displacement_connector.
- 66_block wikiPageWikiLink Local_exchange_carrier.
- 66_block wikiPageWikiLink Narrowband.
- 66_block wikiPageWikiLink National_Electric_Code.
- 66_block wikiPageWikiLink National_Electrical_Code.
- 66_block wikiPageWikiLink Phone_connector_(audio).
- 66_block wikiPageWikiLink Plain_old_telephone_service.
- 66_block wikiPageWikiLink Punch-down_block.
- 66_block wikiPageWikiLink Punch-down_tool.
- 66_block wikiPageWikiLink Punch_block.
- 66_block wikiPageWikiLink Punch_down_tool.
- 66_block wikiPageWikiLink RJ-21.
- 66_block wikiPageWikiLink Registered_jack.
- 66_block wikiPageWikiLink T-carrier.
- 66_block wikiPageWikiLink Telephone.
- 66_block wikiPageWikiLink Tip-ring-sleeve.
- 66_block wikiPageWikiLink Western_Electric.
- 66_block wikiPageWikiLink File:6-Clip_66_Block_B_Series.jpg.
- 66_block wikiPageWikiLink File:66_block.JPG.
- 66_block wikiPageWikiLinkText "66 block".
- 66_block wikiPageWikiLinkText "66 type".
- 66_block wikiPageWikiLinkText "66".
- 66_block hasPhotoCollection 66_block.
- 66_block wikiPageUsesTemplate Template:Reflist.
- 66_block subject Category:Local_loop.
- 66_block subject Category:Telephony_equipment.
- 66_block hypernym Block.
- 66_block type Place.
- 66_block type Circuit.
- 66_block comment "A 66 block is a type of punchdown block used to connect sets of wires in a telephone system. They have been manufactured in three sizes, A, B and M. A and B have six clips in each row while M has only 4. The A blocks spaced the rows further apart, and has been obsolete for many years. The B style is used mainly in distribution panels where several destinations (often 1A2 key telephones) need to connect to the same source.".
- 66_block label "66 block".
- 66_block sameAs m.05tgnk.
- 66_block sameAs Q4642197.
- 66_block sameAs Q4642197.
- 66_block wasDerivedFrom 66_block?oldid=620855362.
- 66_block depiction 66_block.JPG.
- 66_block isPrimaryTopicOf 66_block.