Page 714 of 906 NTAK09 1.5 Mb DTI/PRI card553-3001-211 Standard 3.00 August 2005The NTAK09 circuit card conforms to safety and performance standards forforeign and surge voltage protection in an internal environment.Functional descriptionNTAK09 provides the following features and functions:• configurable parameters, including A-Law and μ-Law operation, digitalpads on a per channel basis, and Superframe or Extended Superframeformats• AMI or B8ZS line coding• 1.5 Mb Clock recovery and distribution of reference clocks• DG2 or FDL yellow alarm methods• card status and alarm indication with faceplate-mounted LEDs• automatic alarm monitoring and handling• Card-LAN for maintenance communication• loopback capabilities for both near-end and far-end• echo canceler interface• integrated trunk access (both D-channel and in-band A/B signaling canbe mixed on the same PRI)• faceplate monitor jacks for T1 interface• configurable D-channel data rate with 64 Kbps, 56 Kbps or64 Kbps inverted.• self-test
