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1. General Description
An optical video baseband transmitter VBS 2020 or
2050 TX converts an electrical composite video
signal
into an optical, intensity modulated
equivalent, using AM techniques. The VBS 2020
TX uses an optical wavelength of 850 nm and
needs a multimode optical fiber connection,
whereas the VBS 2050 TX transmits at 1300 nm
and works with single-mode or multimode fiber. In
the latter case, at least 10 dB link attenuation is
required.
VBS 2020 TX and 2050 TX stand-alone trans-
mitters are designed for use in combination with
TKH Security optical receiver modules from the
VBS 2000 series – that is, the VBS 2010/2020 and
VBS 2040/2050 single and triple receivers,
respectively.
The units may be powered with TKH Security's
PSA 12 DC power supply; for applications in harsh
environments, a PSU 12 DC is recommended.
Other technical specifications are listed in section 4.
2. Indicators and connectors
Figure 1 shows the signal connection facilities and
the indicator on the signal I/O side of a VBS stand-
alone transmitter.
The green LED (2) signals
POWER ON. The optical output has an ST
connector (1), while a 75 BNC connector (3) is
used for input.
The other side of the unit carries a DC power
connector (4, see figure 2). The negative terminal is
tied to the housing.
3. Installation and maintenance
In some cases, the unit can be fitted inside a camera
housing. Use the correct power supply voltage (see
section 4, Technical Specifications).
To maintain reliable operation of the module,
observe the following:
- Prevent dust from collecting on the unit
- Protect the module against moisture.
If the output from an optical connection fed by this
module is too low, check the optical link first.
Safety and EMC information is found in the final
section of this document.
© Siqura 2017
Version 002701-2f
VBS2020&2050TX (MW10)
VBS 2020 TX
Stand-alone optical video transmitters
USER MANUAL
VBS 2050 TX
and
1
2
Stand-alone transmitter VBS 2020 or 2050 TX,
perspective view. See section 2 for explanation.
Stand-alone transmitter VBS 2020 or 2050 TX, with
DC power connector. Note that the negative
terminal is tied to the housing
3
Figure 1.
4
_
+
Figure 2.
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Table of Contents
Related Manuals for TKH Siqura VBS 2020 TX
Summary of Contents for TKH Siqura VBS 2020 TX
- Page 1 VBS 2000 series – that is, the VBS 2010/2020 and VBS 2040/2050 single and triple receivers, respectively. The units may be powered with TKH Security's PSA 12 DC power supply; for applications in harsh environments, a PSU 12 DC is recommended.
- Page 2 4. Technical specifications 5. Safety, EMC, ESD General VBS 2020 TX VBS 2050 TX The safety information contained in this section, and on Optical other pages of this manual, must be observed whenever this Wavelength 1300 unit is operated, serviced, or repaired. Failure to comply with Source any precaution, warning, or instruction noted in the manual ...
- Page 3 Note that the warning above does not apply to TKH Security 7. EU Declaration of Conformity products which comply with the limits for a Class B device.
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