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ADTRAN's industry-leading and award-winning DSU/CSU family continues to provide more flexibility with the TSU IQ. The TSU IQ provides the visibility and control you need for both the physical and logical connections made in Frame Relay networks. This intelligent solution for managed Frame Relay access allows you to enjoy the monetary savings of Frame Relay without giving up management visibility and control. 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 statistics are stored in the TSU IQ in a standard ASN.1 format making the statistics available to any SNMP management platform or trend analysis package. ADTRAN offers IQ View, a powerful Windows-based network management system. IQ View combines the features of a complete SNMP management platform and network trend analysis tool in one easy-to-use, low-cost package. The TSU IQ supports multiple ways to access the collected performance data. This management flexibility accommodates both the service provider and the end user in any type of network configuration. Options include simple VT 100 connection, front panel, management access through in-band dedicated or shared PVCs, SLIPP/PPP or Ethernet, and combination management. Combination management allows for simultaneous and independent management by the service provider and the end user.