For Transmitting 4
Video, 8 Audio Channels & 4 Data Channels
The LiteLink® VADT/VADR-9004 system consists of the VADT-9004 transmitter and
VADR-9004 receiver. Both units utilize pure digital 10 bit encoded
modulation to transmit 4 individual high quality video signals, 4 hi-fi
stereo (or 8 mono) audio channels, and 4 data channels on a single fiber.
Video signals are an in accordance with NTSC, PAL and SECAM specifications.
Audio channels can be balanced or unbalanced. Data can be RS-232, RS-422 or
TTL as specified by the user
Both multi-mode and single-mode fiber versions are available and installation is
adjustment free. In addition, indicators are provided on both units to
continuously indicate the presence of video, audio and digital signals as
well as the presence of operating power making system troubleshooting
simple.
Technical Specifications
Video Channel (4)
Important Features
Bandwidth
8 MHz (+0,-3dB)
· Pure
Digital Modulation
10 Bit
Video,
24 Bit Audio
Input/Output Impedance
75 ohms
(BNC)
· Broadcast
Specifications
Input/Output Level
1 volt pp
NTSC (1.3V PAL)
· Multimode
or Single-mode
versions
Signal/Noise Ratio
64 dB minimum
· Signal & Power
Indicators
Differential Phase
<0.5
Differential Gain
<0.5%
Field Tilt
<0.5%
Luminance Non-linearity
<1.0%
Audio Channels
(8)
Bandwidth
20
Hz to 20 KHz
Signal/Noise Ratio
90
dB minimum
THD
<
0.05%
Input / Output Impedance
600
Ohms Balanced or Unbalanced
Data Channels
(4)
Protocol
RS-232, RS-422, or TTL
Data rate
1.5Mb/s maximum
General
Inter-channel Crosstalk
<75
db
Operating Wavelength
1310 or 1550nm
Optical Loss Budget
0-19 dB (single-mode)
Operating Connectors
ST
(multimode)
FCPC (single-mode)
Operating Temperature
-30
to +70 °C
Humidity
<95%
non-condensing
MTBF
(per MIL HBK 217)
>120,000 hours
Power Requirements
12VDC
@0.8 Amperes
Physical Size
(mm)
11.6" x
5.2" x 2"
(295mm x 133mm x 51mm)
Note all specifications are subject to change without notice
Fiber Optic Communications Systems 
