Skip to content
#1 Source in low voltage wire and cable. Call us today to learn more about special offers.
#1 Source in low voltage wire and cable. Call us today to learn more about special offers.

Telco Block

Telco blocks are utilized to connect phone systems to data networks. There are two popular forms of telco blocks: the 66 block and the 110 block. The 66 block is quite common in modern phone systems, as they simplify connecting multiple phone lines. The 66 block is also referred to as B-blocks, M-blocks, and as split-50 blocks.

Primus Cable’s 66 Block with Snap on Cover is a 50 pair telco wiring block composed of durable fire retardant material. This 66 block is suitable for terminating high performance unshielded twisted pair cable. Its performance exceeds Cat5e requirements specified in TIA/EIA 568-B.2. This 66 block mounts on a 89B bracket.

The more recent, 110 block is becoming ever more popular. The 110 block preserves the twists in each twisted pair of cable right up to the connection point. They are commonly used for data networking applications, and have superior crosstalk characteristics over the 66 block. The 110 block also allows for higher density terminations, and provides for higher bandwidth specifications.

Primus Cable provides the Connecting Block 3, 4, or 5-Pair, 110 Type accommodates 20 to 26 AWG diameter conductors. This 110 block is designed for repeated use on 110 data wiring blocks and color coded for easy installation. It is designed for voice and data applications, and color coded for organization and ease of use.

We provide all the equipment necessary for telecommunication network installation and repair. Our Cross Connect Wire is voice grade twisted pair cable provided on 1,000ft spools. This non-jacketed, 24 AWG cross connect wire is very flexible, and cost effective for your telecom installation.

We also have Cable Distribution Spools, or mushroom posts for managing your cross connect wire. It is designed for mounting onto walls or other surfaces to help support and guide your cross connect wire. Our cable distribution spools are also ideal for Cat3 cable for telephone applications.

If you have any questions, feel free to give us a call.

  • Cable Distribution Spool w/ Out Wood Screw
    from $0.56

    Cable Distribution Spool, Mushroom Post, With Screw/Without Screw

    PP7-2143-MUSH
    Dynacom

    ##SHAREDCONTENT[BULLET_ROHS_LOGO]## ##SHAREDCONTENT[BULLET_UL_LISTED_LOGO]## Cable Distribution Spool, Mushroom Post With or Without Screw The D...

    View full details
    from $0.56
  • Hinged Cover for 66 Wiring Block - Available in 4 Colors
    $1.50

    Hinged Cover for 66 Punch Down Wiring Block - Available in 4 Colors

    PP7-1212-OR
    Dynacom

    ##SHAREDCONTENT[BULLET_UL_LISTED_LOGO]## Compatible with Dynacom products only Hinged 66 Punch Down Wiring Block Cover Dynacom's Hinged 66 Block ...

    View full details
    $1.50
  • CAT 5E 110 Wiring Blocks w/ Legs, Wall Mount
    from $5.92

    CAT 5E 110 Wiring Blocks w/ Legs, Wall Mount - 50, 100 and 300-Pair

    PP7-1097/50
    Dynacom

    ##SHAREDCONTENT[PRODUCT_OPTIONS_TAB_MIN_QTY]## CAT 5E 110 Wiring Blocks with 50, 100, or 300-Pairs The CAT 5E 110 Wiring Blocks are commonly used a...

    View full details
    from $5.92
  • Mushroom Board, Cable Distribution Spool, Wood
    from $17.60

    Mushroom Board, Cable Distribution Spool, Metal - 1x4, 2x4, 1x8 and 2x8

    PP7-980-M28
    Dynacom

    ##SHAREDCONTENT[PRODUCT_OPTIONS_TAB_MIN_QTY]## Mushroom Board, Cable Distribution Spool, Metal This Dynacom Metal Mushroom Board is designed for m...

    View full details
    from $17.60
  • CAT 6 110 Wiring Blocks w/o Legs, Wall Mount
    from $5.94

    CAT 6 110 Wiring Blocks Without Legs, Wall Mount - 48, 96 and 288-Pair

    NPNB-610WB-48
    Dynacom

    ##SHAREDCONTENT[BULLET_UL_LISTED_LOGO]## ##SHAREDCONTENT[PRODUCT_OPTIONS_TAB_MIN_QTY]## CAT 6 110 Wiring Blocks Without Legs in 48, 96, and 288...

    View full details
    from $5.94
  • CAT 6 110 Wiring Blocks w/ Legs, Wall Mount
    from $7.36

    CAT 6 110 Wiring Blocks w/ Legs, Wall Mount - 48, 96 & 288-Pair

    PP7-1164/288
    Dynacom

    ##SHAREDCONTENT[PRODUCT_OPTIONS_TAB_MIN_QTY]## CAT 6 110 Wiring Blocks With Legs in 48-Pair, 96-Pair, 300-Pair The CAT 6 110 Wiring Blocks With L...

    View full details
    from $7.36
  •  CAT 5E 110 Wiring Blocks w/o Legs, Wall Mount
    $4.80

    CAT 5E 110 Wiring Blocks w/o Legs, Wall Mount - 50-Pair

    PP7-1150/50
    Dynacom

    CAT 5E 110 Wiring Blocks Without Legs in 50-Pairs The CAT 5E 110 Wiring Blocks Without Legs are commonly used as an interconnect between the pat...

    View full details
    $4.80
  •  CAT 5E 110 Wiring Blocks w/o Legs, Wall Mount
    $27.12

    CAT 5E 110 Wiring Blocks w/o Legs, Wall Mount - 300-Pair

    NPNB-110WB-300
    Dynacom

    ##SHAREDCONTENT[BULLET_UL_LISTED_LOGO]## ##SHAREDCONTENT[PRODUCT_OPTIONS_TAB_MIN_QTY]## CAT 5E 110 Wiring Blocks Without Legs in 300-Pairs The CA...

    View full details
    $27.12
  •  CAT 5E 110 Wiring Blocks w/o Legs, Wall Mount
    $9.92

    CAT 5E 110 Wiring Blocks w/o Legs, Wall Mount - 100-Pair

    NPNB-110WB-100
    Dynacom

    ##SHAREDCONTENT[BULLET_UL_LISTED_LOGO]## ##SHAREDCONTENT[PRODUCT_OPTIONS_TAB_MIN_QTY]## CAT 5E 110 Wiring Blocks Without Legs in 100-Pairs The C...

    View full details
    $9.92
  • Mushroom Board, Cable Distribution Spool, Wood
    from $14.30

    Mushroom Board, Cable Distribution Spool, Wood - 1x4, 2x4, 1x8 and 2x8

    PP7-983-W28
    Dynacom

    ##SHAREDCONTENT[PRODUCT_OPTIONS_TAB_MIN_QTY]## Mushroom Board, Cable Distribution Spool, Wood This Dynacom Wooden Mushroom Board is designed for m...

    View full details
    from $14.30
  • 66 Block Backboard Metal, Half (w/ 4 Brackets)
    from $20.70

    66 Block Metal Backboard - Full, Half and Quarter Sizes - Available in 7 Colors

    PP7-6171-QBL
    Dynacom

    Note: Images are for size reference only. Color of the board will be the color you choose. 66 Block Metal Backboard, Full, Half and Quarter Sizes D...

    View full details
    from $20.70
  • Standard B-Style Mounting Bracket for 66 Block
    $1.90

    Mounting Bracket for 66 Wiring Block, 89B

    PP7-320/MB
    Dynacom

    ##SHAREDCONTENT[BULLET_UL_LISTED_LOGO]## ##SHAREDCONTENT[BULLET_ROHS_LOGO]## 66 Block is not included. Dynacom Mounting Bracket, 66 Block This B ...

    View full details
    $1.90
  • CAT 6 Rack Mount Field Termination Kits
    from $72.46

    CAT 6 110 Field Termination Kits, Rack Mount - 96, 192 and 288-Pair

    NPNB-610RM-288
    Dynacom

    CAT 6 Rack Mount Field Termination Kits The CAT 6 110 Field Termination Kits are commonly used as an interconnect between the patch panels and t...

    View full details
    from $72.46
  • 66 Block w/ `Hydra' Cable (RJ45)
    $53.00

    Pre-Wired 66 Block with RJ45 Hydra Cable, 7-Feet

    NPNB-66DS2-7
    Dynacom

    ##SHAREDCONTENT[PRODUCT_OPTIONS_TAB_MIN_QTY]## Pre-Wired 66 Block and Hydra Cable, 6 RJ45 Plugs Dynacom's 66 block is a punch down block contain...

    View full details
    $53.00
  • 66 Block, 50-Pair Block w/ Telco Connectors
    from $39.50

    Pre-Wired 66 Block, With Male or Female Amphenol Connectors, Up to 50 Pairs total

    PP7-1143-2FC
    Dynacom

    Picture shown is of the PP7-1144-2MC Hinged Cover Sold Separately ##SHAREDCONTENT[PRODUCT_OPTIONS_TAB_MIN_QTY]## Pre-Wired 66 Block with Male ...

    View full details
    from $39.50
  • 66 Block, 50-Pair Block w/ Voice Jacks
    from $57.50

    Pre-Wired 66 Block With RJ11/RJ45 Jacks - 50-Pair

    PP7-6822-RJ45
    Dynacom

    ##SHAREDCONTENT[PRODUCT_OPTIONS_TAB_MIN_QTY]## Pre-Wired 66 Block with RJ11 or RJ45 Connectors, 50 Pair Dynacom's 66 block is a punch down bloc...

    View full details
    from $57.50
  • CAT 5E Rack Mount Field Termination Kits
    from $36.80

    CAT 5E 110 Field Termination Block Kits with Connecting Clips, Rack Mount - 100, 200 & 300 Pair

    NPNB-110RM-200-5
    Dynacom

    ##SHAREDCONTENT[BULLET_UL_LISTED_LOGO]## ##SHAREDCONTENT[PRODUCT_OPTIONS_TAB_MIN_QTY]## CAT 5E Rack Mount Field Termination Kits with Clips The...

    View full details
    from $36.80
  • CAT 6 Wall Mount Field Termination Kits
    from $27.46

    CAT 6 110 Field Termination Kits, Wall Mount - 48, 96 and 288-Pair

    NPNB-610B-48
    Dynacom

    ##SHAREDCONTENT[PRODUCT_OPTIONS_TAB_MIN_QTY]## CAT 6 Wall Mount Field Termination Kits The CAT 6 110 Wiring Block Tower Mounts are commonly used...

    View full details
    from $27.46
  •  66 Block Wood Backboard - Full, Half and Quarter Sizes
    from $19.80

    66 Block Wood Backboard - Full, Half and Quarter Sizes - Available in 7 Colors

    PP7-5760-FW
    Dynacom

    Note: Images are for size reference only. Color of the board will be the color you choose. ##SHAREDCONTENT[PRODUCT_OPTIONS_TAB_MIN_QTY]## 66 ...

    View full details
    from $19.80
  • CAT 6 Tower Mount Field Termination Kits
    from $213.90

    CAT 6 110 Field Termination Kits, Tower Mount - 288, 576 and 864-Pair

    PP7-4517/288
    Dynacom

    CAT 6 Rack Mount Field Termination Kits The CAT 6 110 Field Termination Kits are commonly used as an interconnect between the patch panels and t...

    View full details
    from $213.90
  • CAT 3 110-Style Connectors - 1, 2, 3 or 4-Pair
    from $1.72

    CAT 3 Voice Connecting Block, 110 Type - Up to 4 Pair

    NPNB-110PCC-1
    Dynacom

    ##SHAREDCONTENT[PRODUCT_OPTIONS_TAB_MIN_QTY]## CAT 3 Connecting Block, 110 Type The CAT 3 Connecting Blocks from Dynacom are designed for use with...

    View full details
    from $1.72
  • CAT 5E Tower Mount Field Termination Kits
    from $147.20

    CAT 5E 110 Field Termination Kits, Tower Mount - 300, 600 and 900-Pair

    NPNB-110WMT-900-4
    Dynacom

    ##SHAREDCONTENT[BULLET_UL_LISTED_LOGO]## ##SHAREDCONTENT[PRODUCT_OPTIONS_TAB_MIN_QTY]## CAT 5E Rack Mount Field Termination Kits with Clips Th...

    View full details
    from $147.20
  • Wiring Block Label Holders (6 ct.)
    $2.54

    Wiring Block Label Holders (6 ct.) - 110/610 Block

    NPNB-110PH
    Dynacom

    ##SHAREDCONTENT[PRODUCT_OPTIONS_TAB_MIN_QTY]## Wiring Block Label Holders Dynacom's Wiring Block Label Holders offer the capability of securing the...

    View full details
    $2.54
  • 66 Wiring Block, Unwired w/ Snap-On Cover
    $11.08

    66 Wiring Block, Unwired w/ Snap-On Cover

    PP7-319/66
    Dynacom

    66 Wiring Block, Unwired Dynacom's 66 block is a punch down block containing rows of four IDC style clips. It is used for terminating 22-26 AWG s...

    View full details
    $11.08