Cat6 Junction Box - 110 Punch Down Style | White (SMB001-6JB)

This is a Cat6 junction box for splicing two Cat6 cables together permanently, without a coupler or a pair of plugs. Inside the white surface-mount housing is a 110-style punch-down block that takes 110 or Krone blades, with the terminals color-coded for T568A and T568B, so the eight conductors of each cable punch down to the same positions and the splice holds Cat6 performance. It takes solid 23 to 26 AWG Cat6, the two cables come in through two entries, and there's a label area on the box for marking the run. It's sold individually, and it needs a 110 punch-down tool, which isn't included. For Cat6A, the SMB001-6AJB is the same box rated for 10 Gigabit; for joining two terminated patch cords instead of two bare cables, a keystone coupler in the SMB006 box.

Features

• Permanent splice, no connectors. Two Cat6 cables punch down to one block; no plugs, no coupler, nothing to work loose.
• 110 and Krone punch-down. The block takes either blade style.
• Color-coded terminals. T568A and T568B marked, so both cables land the same way.
• Holds Cat6 performance.
• For 23 to 26 AWG Cat6. Two cable entries; label area on the box.
• Surface mount, white.
• Sold individually. 110 punch-down tool required, not included.

Where It Fits

It suits structured cabling crews repairing a Cat6 run that was cut by a drill, a rodent, or a renovation and can't be re-pulled, anyone extending a run that came up short of where the device ended up, anyone moving a wall jack a few feet and wanting to reuse the existing cable instead of pulling new, building retrofits where two lengths of Cat6 have to become one inside a ceiling or a closet, backbone links between closets that were run in two pieces, and a job that already has the bulk Cat6 and the 110 punch-down tool from the copper collections. For Cat6A and 10 Gigabit, the SMB001-6AJB; for a splice that can be undone later, two KEY6-90 keystone jacks and a short patch cord in an SMB006 box.

Good to Know

A punch-down splice is a permanent fix and a good one, but it's still a splice: it adds a connection point that the standard counts as one of the four allowed in a channel, so don't put more than one in a run if you can help it, and keep the total channel under 100 m including the patch cords at both ends. Strip each cable back only as far as it takes to reach the block, keep the twist in each pair to within half an inch of the terminal, and punch both cables down to the same standard, T568A or T568B, matching whatever the jacks at the two ends use; the color coding on the block makes that hard to get wrong but doesn't make it impossible. Use solid-conductor cable; punch-down IDC terminals are made for solid 23 to 26 AWG and won't hold stranded patch cord reliably. Test the full link after the splice, since a splice that passes continuity can still fail NEXT if the untwist is long. Mount the box where it can be reached again, use the label area, note it on the as-built, and don't bury it in a wall; a splice behind drywall is the one nobody can find in five years. The page doesn't say whether the block is shielded, so for a shielded Cat6 run, confirm before ordering, because an unshielded splice breaks the shield's continuity and the drain wire has nowhere to land.

Specifications

Usually ships the same day.