Table of Contents 1 INTRODUCTION......................7 1.1 About the Probe......................7 1.1.1 Probe - Overview....................7 1.1.2 VB20 and VB220....................8 1.1.3 Probe - Functionality....................9 1.2 How to use this manual....................10 2 PRINCIPLE OF OPERATION..................11 3 SAFETY......................... 13 4 INSTALLATION AND INITIAL SETUP................14 4.1 Quick Installation Guide.....................14 4.2 The Enhanced Chassis (EC)..................14...
1.1 About the Probe 1.1.1 Probe - Overview The VB-2 series of probes consists of the VB220 rack-mount IP probe and the VB20 portable IP probe. The VB220 can be bundled with a range of interface modules for monitoring of signals as found in cable (QAM), satellite (DVB-S/S2) and terrestrial (DVB-T/T2/8VSB).
1.1.2 VB20 and VB220 The main difference between the VB20 and the VB220 probes are summarized in the following table: Feature VB20 VB220 RF/ASI inputs Up to 4 RF inputs by adding...
In subsequent text the word Probe is used as a generic reference to VB20 and VB220. 1.1.3 Probe - Functionality An IP-based network is fully transparent with respect to signal contents quality, provided that the IP-packets arrive, and provided that they arrive in time. The probe therefore uses the patented MediaWindow to allow monitoring at-a-glance of packet loss and errors in inter-packet arrival time.
The serial number is located at the rear of the unit. All serial numbers can also be found on the shipping box. The serial number of the VB20 probe is also available via the web GUI under About License. 4.5.4 Interfaces The VB20 has Ethernet and ASI inputs.
Refer to section 5.3 for a description of this plug. For the VB20 it is just to connect the mains source and the diodes should light up. Note that it will take some time from power-up until the modules can be accessed via the management interface –...
VideoBridge Controller (VBC). Figure 7: Alarm handling in the probe - note that ETR 290 is included as standard in the VB20 and VB220 probe. The probe distinguishes between events and alarms. The ETR software module will always generate alarms and the Systems software module will always generate events.
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The details of the individual ETR 290 measurements are described in a separate document called Bridgetech ETR 290 Details - Extended ETSI TR 101 290 Testing. Clicking the Show alarm graph button opens the Alarm graph popup view.
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