The T1/FT1 Interface Module can do all of the following: • Test Nx64 kb/s and Nx56 kb/s contiguous or noncontiguous fractional T1 or full T1 circuits. • Verify and troubleshoot Fractional T1 configurations. • T1/FT1 drop and insert capability that allows Nx56 kb/s or Nx64 kb/s bit error analysis without disrupting traffic on the remaining timeslots. • V.54 support for sending in-band loopbacks over a FT1 bandwidth. • ANSI T1.403 PRM support for reporting on far-end status (FIREBERD 6000 only). Requires Option 6009. ® Auto-scan and auto-coofigure to any Fractional T1 circuit. • T1 level and simplex current measurement. • Timing and pattern slips analysis. • CSU and smartjack (facility) loopback tests using built-in in-band or out-of-band ESF Data Link loop codes. • Responds to CSU loop up and loop down codes. • Transmits and monitors voice and ABCD signaling bits. • Generates logic, Bipolar Violations (BPVs), and frame errors. • Detects the presence of B8ZS, framed patterns, Yellow Alarm, Excess Zeros Alarm, AIS and ones density violation alarm conditions. • Monitors T1 signals using BPVs, frame errors, and CRC errors. • Measures and generates jitter with FIREBERD 6000.