Is performance affected by the weather?
It is unavoidable that an optical beam can be affected by
weather conditions. Rain, fog or snow reduces visibility,
scattering and attenuating the amount of laser light that
passes between the two units. This can result in transmission
errors, that is why a back up line is recommended. However, if
it is possible to see approximately half way to the opposite site
under bad weather conditions, the DT-100 series can transmit
correctly.
Are the lasers safe?
The DT-100 series is rated as a class 1M laser. The laser light
that is transmited by the DT-100 series is safe even if viewed
with the naked eye at the point of transmission. Because the
laser beam spreads out by the time it reaches the receiving
side, it is even safer there than it is on the transmitting side. (It
is not recommended to use magnifying optics such as
binoculars at the point of output, as the effect on the eyes
would be amplified). FDA Laser Notice No.50, IEC/EN60825-
1/A2:2001 Class 1M
What happens if a bird flies across the path
of the laser?
If a bird flies across the path of the laser, the amount of light
that is received will be reduced, but will still be adequate
enough for data transmission. However, if a bird flies near the
source of the laser, obstructing it completely, the data will be
momentarily interrupted. But if you are using TCP/IP, the
problem will be resolved by a retransmission of the data.
What is the maximum transmission
distance?
Standard transmission distances for each model are shown in
the specifications. However, maximum transmission distance
is a function of weather conditions and acceptable link
availability.
Is a relay setup possible?
If you want to set up a network connection between two
buildings that are separated by more than 2km or that does not
have a clear line of sight, you can connect pairs of CANOBEAM
units to relay the signal. With the DT-130 and DT-150, the relay
process will not damage the data, because the waveform is
normalized by the 3R function at each relay point.
Is laser communication through glass
windows possible?
Yes. The DT-100 series can be installed indoors for window to
window or window to roof transmission as long as the two
units are located with a direct line of sight. However, some
glass windows scatter and attenuate the amount of laser light.
Therefore, conducting a field test is recommended.
Canobeam
Q
&
A
DT-110 Type SFP
• Economical FSO for data transmission from 20m to 500m
• Wide range of data speeds from 25Mbps to 156Mbps
• Auto Tracking Function
• DT-MNG100, Management Board built-in
DT-120 Type SFP
• Provides high-quality, reliable wireless communications from 100m to 2km
• Wide range of data speeds from 25Mbps to 156Mbps
• Auto Tracking Function
• DT-MNG100, Management Board built-in
DT-130 Type SFP
• State-of-art data transmission at 1.25Gbps for Gigabit Ethernet network
• Transmission distance from 20m to 1000m
• 3R Function (Re-shaping, Re-timing, Re-generating)
• Auto Tracking Function
• DT-MNG100, Management Board built-in
DT-150
• Transmission distance from 20m to 1000m
• Transmission of HD-SDI signal without compression and delay
• Correspond with SD-SDI and DVB-ASI signals
• 3R Function (Re-shaping, Re-timing, Re-generating)
• Auto Tracking Function
• DT-MNG100, Management Board built-in
