M12x0 Trunk Expansion Module

The M12x0 trunk module allows the addition of up to twelve more CO (telephone company) lines on a Modular system. There are three slots in the trunk module that can hold a 4x0 trunk card. Each card can support up to four incoming lines. An expansion card in the KSU is required to connect the trunk module to the KSU. All modules come complete with a DS-30 connection cable and wall-mount brackets.