The IQ Series from ADTRAN provides extensive Frame Relay performance management at a significant cost savings. The IQ 310 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. The IQ 310 is a modular CSU/DSU that provides two expansion slots for network interface and dial backup cards and a 10Base-T Ethernet port for management. With network interface cards that provide for 56/64k, T1/FT1, T1 Probe, and T1/FT1 with DSX-1 capability, the IQ 310 protects your investment and enables performance monitoring on all your Frame Relay circuits. Optional dial backup cards are available that support analog, ISDN BRI, ISDN PRI, and DTE applications.