This interface module delivers 48 ports of T1 or E1 connectivity on NCS 4200 Series systems. The module can be software configured as either T1 mode or E1 mode per interface module in an NCS 4200 Series platform. This interface module provides physical connectivity using a single high-density connector and requires a breakout cable and patch panel for individual port connections.The module is software configurable for 48 T1 or 48 E1 ports. Mixing T1 and E1 ports on the same interface module is not supported. The module can be clocked from a line or from an internal clock source. The protocols supported on the module are software configurable per interface, which allows for flexible deployment and efficient use of the hardware.The module requires an external patch panel and a breakout cable to deliver a DIN or RJ48C port for the user application.