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#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.

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

by Dynacom
Color: Red
Various lead times may apply to this product. Please contact us for more details.

Note: Images are for size reference only. Color of the board will be the color you choose. 


66 Block Wood Backboard

These wooden backboards from Dynacom are made to support two, four or eight 66 Wiring Blocks. Some punch down wiring blocks do not contain legs (also called feet), which prevents them from being wall-mounted. With a backboard and an 89B bracket, any 66 punch down block can be mounted to the wall.

Additional Related Items

To complete your network, we have all the products you need, with full end to end solutions for Telco voice systems. We carry a wide array of Punch Down Wiring Blocks, Backboard Brackets, and CAT3 Cable.

If you are looking to quickly and easily install your CAT3 network or voice system, we have Pre-Wired Punchdown Blocks, Pre-Loaded Surface Mount Boxes, and Ethernet Splitters.

We also carry Telco tools and equipment for testing the integrity of a CAT3 network such as Telephone Line Testers, Punch Down Termination Tools and Professional Tool Kits.

We also carry a large assortment of items that work with Telco voice systems such as: Amphenol cables, Bridge Clips, Connecting Blocks, Modular Cable, and other accessories that will help make your installation fast, smooth and organized.



  • Accepts Two, Four or Eight 66 Blocks (1x2, 2x2 and 4x2 configurations)
  • 1/2" Thick Wood
  • NOT Fire-Retardant Materials



Part Number PP7-5762-QW-XX PP7-5761-HW-XX PP7-5760-FW-XX
Configuration Quarter Size Half Size Full Size
Capacity 2 Wiring Blocks 4 Wiring Blocks 8 Wiring Blocks
Height 8.5 inches 8.5 inches 17 inches
Width 10 inches 20 inches 20 inches
Depth 0.5 inch Backborad, w/ 2 inch Block attachment 0.5 inch Backborad, w/ 2 inch Block attachment 0.5 inch Backborad, w/ 2 inch Block attachment
Package Quantities Sold in boxes of 16 (Minimum Quantity Order is 3) Sold in boxes of 8 (Minimum Quantity Order is 4) Sold in boxes of 4 (Minimum Quantity Order is 3)



*No Spec Sheet for Quarter Size Backboard.

Additional Information

Telco Block Accessories

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. 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.

To learn more about our Telco Block Accessories please visit our overview page. Our 66 Block Metal Backboards can be combined with a wide array of products such as:

What’s In The Box

What’s In The Box


  • Qty 1 - 66 Block Wood Backboard
  • Qty 2 - Wiring Blocks


  • Qty 1 - 66 Block Wood Backboard
  • Qty 4 - Wiring Blocks


  • Qty 1 - 66 Block Wood Backboard
  • Qty 8 - Wiring Blocks