Televes DVB-T Modulator 1Ch A/V CVBS + USB, DigiMod - Manual (Page 4)

DVB-T Modulator & USB
4
Safety Instructions
WARNING: To prevent fi re or electrical shock, do not expose the device to rain
or moisture.
General Precautions
Avoid placing the device next to central heating components and in areas of
high humidity.
Do not cover the device with elements that obstruct the ventilation slots.
If the encoder modulator has been kept in cold conditions for a long time,
keep it in a warm room minimum 2 hours before plugging into the mains.
Mount the encoder modulator in vertical position with the connectors
located on the top side.
When replacement parts are required, be sure the service technician has
used replacement parts specifi ed by the manufacturer or have the same
characteristics as the original part. Unauthorized substitutes may result in
fi re, electric shock or other hazards.
Safety check- Upon completion of any service or repairs to this device, ask
the service technician to perform safety checks to determine that the device
is in proper condition.
Power precautions
The encoder modulator is powered with a voltage of 12V DC. The power
supply voltage must not exceed the recommended voltage, which otherwise
may cause irreparable damage to the device and the invalidation of the
warranty. Therefore:
- Do not replace power supply with a voltage greater than 12V DC.
- Do not connect the device to the power if the power cord is damaged.
- Do not plug the device into mains supply until all cables have been
connected correctly.
- Do not cut the cord.
1. Introduction
1.1 General Description
554902 encoder & modulator (home use) is Televes´ consumer product which
allows audio/video signal input in TV distributions with applications in home
entertainment, surveillance control, inns, restaurants, small shops, etc.
It is a device that allows to convert a composite video signal (with or without
audio) into digital DVB-T COFDM signal and so distribute for the existing
network.
The signals source could be from satellite receivers, CCTV cameras, DVD players,
etc. Its output signal is to be received by a DVB-T standard TV, DVB-T STB etc.
With this DVB-T modulator is also possible to use a USB memory as signal
source.
1.2 Main Features:
DVB-T COFDM modulator
MPEG-2 encoding
RF frequency range 47-862MHz
Bandwidth (6, 7 or 8 MHz)
RF Looptrough
USB PVR and Playback (with loop function)
Removable power supply (with EU/UK adapter)
Easy to program via keyboard
LCN mode selection support
Advanced edition of parameters: service name, program name, program
number, PMT PID, PCR PID, A/V PID, EIT event, TSID, ONID
Color confi guration: brightness, contrast, saturation, Hue.
Upgrade by USB.
1.3 Contents
Verify that the following components are included in the packaging:
1 x DVB-T Encoder/Modulator ref.554902
1 x Power supply (with EU and UK adapter)
1 x RCA Cable
Quick Guide
1.4 Blocks diagram
INPUT
(CVBS +
AUDIO)
MODULATOR
ENCODER
COMBINER
RF IN
RF OUT
USB
1.5 Technical specifi cations
Encoder
Video
Encoding MPEG-2 MP@ML(4:2:0)
Interface 1 x CVBS (RCA)
Resolution 720x576_50i (PAL); 720x480_60i (NTSC)
Bit rate 1.000~19.000 Mbps
Audio
Encoding MPEG1 Layer II
Interface 1 x Stereo/mono (RCAs)
Sample rate 48KHz
Bit rate 64, 96, 128, 192, 256, 320, 384kbps
Modulator
Standard DVB-T COFDM
Bandwidth 6M, 7M, 8M
Constellation QPSK, 16QAM, 64QAM,
Code rate 1/2, 2/3, 3/4, 5/6, 7/8.
Guard Interval 1/32, 1/16, 1/8, 1/4.
Transmission Mode: 2K
MER ≥42dB
RF frequency 47~862MHz (1KHz step)
RF output level -16~ -36 dBm (73~93 dBμV), 0.1dB step
RF looptrought 5 - 900 MHz (10 dB attenuation)
USB
File System FAT 32 - High Speed 2.0 (*)
Memory Suggested 32GB Memory 500GB
USB PVR “.ts” fi les - Max. 2GB
USB Playback Only “.ts” fi les
System
Management Local control: LCD + control buttons
Language English
LCN Insertion yes
Upgrade USB + JTAG
General
Power supply 12V DC 2A
Power consommation 750mA
Dimensions 172 x 122 x 50mm
Weight 500g
Operation temperature 0 ... 45 ºC
(*) Televés does not guarantee 100% compatibility with all USB devices.