Manual Title

Manual Title
DVM-3300A
Quad 8-VSB to GigE Converter
Performance
The DVM-3300A is a Quad 8-VSB/QAM demodulator in a 1-RU chassis with MPEG-over-IP generation.
Using four (4) F-connectors for the RF antenna input ports, the unit is able to demodulate up to 4 separate RF
channels, extract digital MPEG2 transport streams using LG 6th-gen 8-VSB demodulator chips, and generate
multiple MPEG2-over-IP signals over the GigE Ethernet ouput.
Transport Stream Output
The MPEG2 Tranport Stream output is provided through a GigE Ethernet output port via a standard RJ45 connector. The unit also has two (2) DVB-ASI ports for test monitoring of any RF input or IP stream.
8-VSB RF Demodulation
Using a LG 6th-gen demodulator IC, the unit is able to tune to any VHF/UHF off-air digital channel for
8-VSB. It is also possible to set up the unit to demodulate QAM 64B/256B cable channels.
UDP/IP
UDP is used as the host-to-host layer and IP as the internet layer. Unlike Transmission Control
Protocol (TCP), UDP is not connection-oriented and offers no facilities for sequencing data or guaranteeing
reliable packet delivery. This feature makes the UDP faster, simpler and more efficient than the TCP, and more
suitable for high bandwidth video distribution when combined with RTP.
Real-Time Transport Protocol
The Internet Engineering Task Forcce (IETF) has an Audio/Video Transport (AVT) working group that
has defined a protocol for real-time transmission of audio and video over IP called Real-Time Transport
Protocol (RTP.) RTP is aimed at the distribution of audio and video over the internet for applications like video
conferencing and streaming. This protocol functions to distribute videos over Ethernet in the more controlled
environment of a broadcast facility. RTP offers features for time stamping and detecting packet loss or reordering.
Pro-MPEG Code of Practice #3
The Pro-MPEG recommends transmission protocols such as RTP/UDP/IP mapping, a Forward Error
Correction (FEC) scheme, and defines issues such as timing recovery, jitter tolerance and latency. It supports
selected IP streams for Pro-MPEG CoP3 Forward Error Correction (currently up to 4 FEC coded streams.)
CBR Demultiplexing and Encapsulation
The unit is capable of a Constant Bit Rate (CBR) Transport Stream demultiplexing with PCR
restamping. Any single ingress program or original Transport Stream (MPTS) may be encapsluated and sent
over Ethernet using the above-mentioned protocols.
User Interface
All settings and controls can be viewed and set using a 10/100 BaseT control port. An RS232 port is
also available for basic installation.
Applications
x
GigE Transport
x
MPEG2-over-IP
Provided by: Mega Hertz
800-883-8839
info@go2mhz.com
www.go2mhz.com
General Specifications (All specifications are preliminary and subject to change)
AC Power
Weight
Frequency
47-63 Hz
Net
12 lbs
Voltage
90-264 VAC
Gross
15 lbs
Current
1.2 A (max)
Fuse
1.5A, 250V
Front Panel Display
Power ON LED
Operating Conditions
Temperature
0º - 55ºC
Altitude
12,000 ft.
Humidity
95% non-condensing
Cooling
None
User Interface
Local
RS232
Remote
10/100BaseT RJ45
Dimensions
Height
´
Width
´
Depth
´
RF Inputs
Source Impedance
Rack Space
75 ohms
TS Bit Rate
1U
OTA: 19.39265 Mbps +/- 2.8ppm
Cable: QAM64B ± 26.970 Mbps
QAM256B ± 38.810 Mbps
Input Coupling
AC
Mod Format
8VSB/QAM
Channel Range
OTA: VHF~UHF (CH2~69)
Cable: STD, IRC, HRC (CH1-125)
Connector
F - Jack
10/100/1000 Ethernet Output
Format
Ethernet, MPEG-2-over-IP
Spec
10/100/1000BASE-T with
Auto-negotiation
Connector
Protocols
Pro-MPEG CoP#3 (optional),
IP/UDP, RTP (optional)
RJ45
DVB-ASI Outputs
Source Impedance
75 ohms
Connector
BNC (x2)
Management Specifications
RS-232
Baud Rate
57600, 8 data bits, no parity, 1 stop bit
Connector
DSUB 9, female
Software
Terminal Software
10/100 Ethernet
Connector
RJ-45
Protocols
HTTP, FTP, TFTP, Telnet
Ordering Information
Part Number
Description
DVM-3300A
QUAD 8-VSB to GigE Converter
Provided by: Mega Hertz 800-883-8839 info@go2mhz.com www.go2mhz.com
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