DVB-T/T2 RF Interface VB252
VB252 is a dual input DVB-T/T2 input interface module that enables monitoring of digital terrestrial transmissions. Two modules may be housed in a 1RU chassis together with a controlling VB120 or VB220 probe, providing high monitoring capacity occupying a minimum of rack space.
In addition to monitoring typical RF parameters, the monitoring solution optionally allows advanced analysis of the complex DVB-T MI protocol; signal integrity is verified layer by layer. This analysis functionality is complemented by the renowned VideoBridge ETSI TR 101 290 monitoring engine to ensure standards conformance at all levels.
DVB-T2 allows signal distribution to transmitter sites via IP in addition to synchronous distribution methods like satellite. The VB120/VB252 combination enables monitoring of up to 50 IP multicasts, thus monitoring IP network distribution together with DVB-T2 transmissions. It is even possible to equip the monitoring chassis with a VB270 satellite interface module, which is valuable if combined IP and satellite distribution to transmitter sites is used.
- Standards: DVB-T (EN 300-744), DVB-T2 (EN-302-755)
- Dual input digital terrestrial receiver
- Fully independent inputs
- All bands DVB-T/T2 receiver (47 - 856 MHz)
- Symbol rate range: 0.7 to 7.2 Msym/s
- Channel bandwidth: 6, 7 or 8 MHz
- RF inputs: 75 ohms F-connector
- 1PPS input: 50 ohms SMB connector, female
- Measured RF parameters: packet error rate, signal level, SNR, pre and post BCH BER, MER
- SFN drift monitoring using 1PPS input signal
- Constellation diagram
- Impulse response diagram
- Configurable round-robin testing
- Fully controlled via backplane by VB120 or VB220
- LEDs indicating RF signal lock
- Built-in general purpose alarm relay (GPI)
RF INPUT
ASI OUTPUTS
ALARM RELAY
MECHANICAL
ENVIRONMENT SPECIFICATIONS
CONTROL AND MANAGEMENT
POWER SUPPLY REQUIREMENTS
