ADTRAN's industry-leading and award-winning DSU/CSU family continues to provide more flexibility with the addition of the TSU IQ+. The TSU IQ+ is a T1/FT1 frame-aware DSU with an integral DSX-1 interface that terminates voice and data from a mixed mode Frame Relay circuit. This intelligent solution allows a cost-effective approach for customers requiring equipment that supports voice and Frame Relay data over a single T1/FT1 circuit.? ?Real-time measurements of Frame Relay metrics are stored in the TSU IQ+. These metrics include statistics on throughput and utilization per port and PVC, availability, utilization by protocol, top talkers, lost frames, PVC state, excess bursting above CIR, network congestion (FECN, BECN, and DE), and end-to-end delay on any or all PVCs. This data is crucial for pinpointing specific traffic demands and problem sources in the network, for analyzing traffic patterns, and for general maintenance and troubleshooting of the Frame Relay circuit. The statist...