Typically, 66/110 wired block systems are used in telecommunications applications and certain networking applications to organize and connect telephone and data cables. Older phone systems use 66 blocks while ethernet and high-speed networks use 110 blocks.
The wiring blocks provide easy, reliable and accessible demarcation points between the phone company and the end user's equipment. Used in equipment rooms, remote and intermediate wiring closets to connect voice or data wiring to equipment on the customer's premises, these wiring blocks save everyone time, money and hassles while delivering proven performance.

We also carry prewired blocks and lightning-protected blocks , giving you the options you need to build your custom network. Our large selection means that when you shop here on our online site, you can find exactly the type of equipment you need at exactly the right price to fit your budget.
If you are looking for 66 blocks, we offer a complete line of industry-standard and Category 5 modular 66 blocks, network interface blocks and interface blocks to help you get the job done right. These blocks are molded of flame-retardant thermoplastic for dependable service and durability. To save labor and installation time, take a look at our prewired 66 blocks. These have been pretested, making them fast and easy to install for many PBX, telephone systems and other low-voltage terminal equipment. We also carry UL-approved, lightning-protected 66 phone terminal block assemblies if that is a requirement for your project.
Discount Low Voltage also offers 110 blocks if you are looking for a fast, easy and economical way to connect PBX, telephone and other low-voltage terminal equipment. These advanced punch blocks provide a high density of terminations, cutting those big jobs down to size. Choose from a variety of styles, including wall mount and rack mount, to adapt to any space or situation. These wiring blocks are made by leading manufacturers like Dynacom and Siemon, so you can shop with confidence backed by our guarantee of your total satisfaction. We also carry all the accessories you want for these punch blocks, making installation fast, easy and affordable.

If your order meets basic requirements and everything is in stock, we can even ship it the same day to get it to you quickly. We stand behind everything we sell with our guarantee of your total satisfaction, and we never tack on handling fees or other unexpected charges.

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