The 4500 MPEG Transport Stream Processor works with both DVB-ASI and SMPTE 310M bitstreams. It provides stream content analysis with support for both Priority 1 and Priority 2 test protocols of the ETR 290 DVB measurement guidelines. As a converter, it can translate ASI to 310M or 310M to ASI. Using the reference input, the output bitstream can be synchronized to a video or 10 MHz reference signal. The 4500 module is useful in broadcast and transmission applications. The built-in transport stream analyzer detects whether the input constitutes a valid signal by checking for PAT, PMT, and PID packets. In addition to the ETR 290 test protocols, analysis and data rate for elemental streams is performed. Alarms can be generated via SNMP, Avenue PC, and contact closure outputs. The 4500 acts as a Time Base Corrector to remove jitter and adjust transport streams to the precise, desired bit rate. The reference input to the 4500 allows the use of either analog video or a 10 Mhz signal to synchronize the output of the module. This is of particular importance in broadcast applications where the quality of the symbol clock – both jitter and accuracy – bears directly on the modulation process.