The ITW Linx Towermax CO/4X4, MCO4X4-60, is an add-on module for the Towermax 4 or 8 KSU base modules.

The ITW MCO4X4-60 allows you to protect 4 central office lines via RJ-11/45 connectors. The unit features auto-resetting technology, PTC resistors open when a surge occurs, but once the surge has passed, they close again! One line protected per connection (pins 4,5 on each jack)., UL Listed Secondary

Product also known as: