Provides interface for (3) standard loop-start CO trunks

Equipped with (1) 8-conductor interface jack

Must be installed on 082U, 008U, or 000U Cards

Max (1) daughter board per 082U, 008U, or 000U

Max of (4) can be installed in each Chassis (Main & Exp)

Max of (12) can be installed per system

*There is no Power Failure Transfer circuitry