ADTRAN 1150028L1 T400 19 SWITCH

The T400 shelf provides a space-saving housing for multiple Type 400 circuit packs. The T400 shelf can support customer premises NT1 applications, central office U-Repeater Powering Module (U-RPM) applications or Total Reach ISDN Central Office Units (TRI-C). The shelf is effective for large ISDN installations that prefer housing equipment in a centralized location instead of on a desktop. This provides efficient management and maintenance of ISDN circuits.