ISDB-T(b) Dual Monitoring Blade
The VB256 ISDB-T(b) RF input blade brings support for the latest ISDB terrestrial modulation standards to the VideoBRIDGE product line. With support for all modern ISDB-T system modes, the VB256 includes all the modulation formats needed to monitor modern ISDB-T broadcast systems. Each VB256 includes two independent tuners. One is enabled by default and the other is enabled with the VB256RF-LICENSE. Together with the VB120 or VB220 controllers, this allows up to 4 RF inputs in a 1RU chassis.
A complete configuration with a fully licensed VB120 provides real-time monitoring and alarming for 4 ISDB-T(b) inputs, 50 IP MPTS/SPTS multicasts, and an ASI TS input and output. ETSI TR 101 290 analysis and monitoring is performed in parallel for the RF inputs, the ASI input and the IP input. If a VB220 is used as the controller, the IP monitoring capacity is increased to 260 MPTS/ SPTS multicasts in addition to the RF inputs.
The combined unit is ideal for networks where IP is used as a carrier from head-end to the transmitter. The built-in round- robin functionality allows sequential analysis of multiple ISDB-T channels, making it possible to monitor all the transmissions available on an antenna using a single VB256. One VB256 module is capable of demodulating two multiplexes (one per input) for ETSI TR 101 290 fault detection and alarm generation in the full frequency band (42-1002 MHz).