User's Manual
Table Of Contents
- 1 System Overview
- 2 Features Summary
- 3 EXACT-V2 Rack
- 3.1 EXACT-V2 mechanics
- 3.2 Interface characteristics
- 3.3 Front Panel signalization (LEDs description)
- 3.4 Power requirements
- 3.5 Performances and technical characteristics
- 3.5.1 General characteristics
- 3.5.2 Control and data Ethernet interfaces
- 3.5.3 Serial control interfaces
- 3.5.4 ASI inputs / output and MPEG-TS processing
- 3.5.5 Digital modulation
- 3.5.6 Clock synchronization
- 3.5.7 RF and monitoring outputs
- 3.5.8 Digital precorrection
- 3.5.9 Power level measurement inputs and AGC
- 3.5.10 Dry contacts
- 3.6 Conformity with EC Directive
- 4 EXACT-V2 Installation
- 5 Operation
- 6 Maintenance & Troubleshooting
- Appendix A GPS Installation Recommendations
- Appendix B Example of GPS Antenna
USER
MANUAL
MPD-1611291-A
EXACT-V2 High End Rack Modulator / Exciter
3/10/2017
MPD-1611291-A
Page 12/94
1.2 Block diagram
The generic block diagram is described below:
Figure 1: EXACT-V2 functional block diagram
EXACT-V2 features two ASI/SMPTE input streams that can be processed in parallel for
stream redundancy (Primary/Secondary). Four IP streaming (Gigabit) input/output
ports are reserved for ATSC 3.0 mode.
The clock and synchronization process has been carefully designed to reach the best
performance for all of the supported standards. 1PPS and 10MHz external reference
signals are available to reach a higher frequency accuracy. An on-board GPS receiver
is also available and may be used for this purpose.
Regarding the control and management of EXACT-V2, an embedded web server
provides a user-friendly graphical user interface (GUI) that that can be accessed by
any web browser. Three IP control ports are available.
Two connectors are provided for the feedback inputs from the amplifier (FBA_IN) and
from the filter (FBF_IN). These inputs are used for the Digital Adaptive Precorrection
(DAP).
A serial port is also available for complete transmitter control and monitoring
integration within the modulator’s Web GUI.