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| Canobeam for Video Transmission (DT-50/HD & SDI) |
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The demand for high bandwidth wireless transmission systems supporting HDTV and SDI digital video formats is increasing as more and more production facilities go digital. The DT-50/HD and DT-50/SDI are the latest introductions to the Canobeam series, Canon's Free Space Optics (FSO) transmission systems.
HDTV digital microwave transmission is cumbersome from the fact that it requires an external MPEG2 codec unit and must be licensed due to the frequency used. The use of the MPEG2 codec also results in almost a 1 second delay in video which makes the system unrealistic of a live remote transmission. In addition, an HDTV MPEG2 codec requires high performance custom LSIs, dramatically increasing the total cost.
Taking advantage over its capabilities of transmitting higher bit-rates, the DT-50/HD incorporates a newly developed Codec using a unique Canon compression technology that compresses the 1.5Gbps signal to only approximately half of its original bit rate. The transmitted HDTV picture quality exhibits almost no loss and has a delay of just one frame thanks to this unique Canon compression technology.
The Canobeam DT-50/SDI allows full bandwidth wireless transmission of a wide variety of digital video signals. (formats listed on next page) Links can be bi-directional at distances as far as 2km with a direct line of sight.
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| Main Features |
| 1 |
Provides broadcast quality wireless transmission for applications where wired cable connection is not feasible. |
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IR transmission is radio interference free and offers excellent security. |
| 3 |
No radio frequency allocation / licensing required. |
| 4 |
Canon’s proprietary auto tracking system assures optimal IR communication conditions and serves for simple installation. |
Applications |
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As an non licensed alternative to microwave transmission for Sports Events or Live Coverage. |
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For applications where laying cable is difficult or not economical such as for crossing waterways, railroad tracks, highways or for temporary events. |
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For locations where electromagnetic interference must be avoided, such as within power plants, airports, or military occupied areas. |
DT-50/HD |
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DT-50 / HD transmits one channel HD-SDI (SMPTE-292M, 1080/59.94I, 1080/60I, 1035/59.94I, 1035/60I, 720/30P, and 720/29.97P). |
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Provides high picture quality with only 1 frame delay. |
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Includes a newly developed internal CODEC using Canon’s unique compression technology. |
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Link distances can be up to 2km with direct line of sight. |
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Capable of full bandwidth bi-directional transmission allowing a return video signal. (optional with extra pair of HD-SDI interface cards) |
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Bi-directional RS-232C data transmission (standard) expands system applications |
DT-50/SDI
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DT-50 / SDI can bi-directionally transmit one channel of SDI, digital video (SMPTE-259M, ITU-R BT.656). |
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Compatible digital video signals |
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D1 Serial (525/60, 625/50) |
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4:2:2 Component (13.5MHz sampled) — 270Mbps |
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4:2:2 Component (18.0MHz sampled) — 360Mbps |
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D2 Serial |
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NTSC Composite — 143Mbps |
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PAL Composite — 177Mbps |
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Can also interface and transmit DVB-ASI (EN50083-9) signals. |
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Transmission can be made up to 2km with a direct line of sight. |
| Application Sample |
HD-SDI Transmission
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| *Bi-directional transmission is available as option |
| Canobeam DT-50/SDI |
| Model Name |
DT-50 / HD |
DT-50 / SDI |
| Standard Transmission Distance* |
100~2000m |
| Laser Wavelength |
785±15nm |
| Receiving Device |
APD |
| Acceptable SDI/HD-SDI formats |
HD-SDI (1080/60I, 1080/59.94I, 1035/60I, 1035/59.94I, 720/60P, 720/59.94P)
*Internal codec compressed those signals to 594Mbps |
SDI-143Mbps,177Mbps, 270Mbps, 360Mbps
DVB-ASI-270Mbps |
| Video Signal |
Uni-directional Transmission
(Bi-directional available as option) |
Bi-directional Transmission
(Transmission 1ch, Receiver 1ch) |
| Physical Interface |
75 ohms BNC connector (HD-SDI)
D-sub 9 pin Male connector (RS-232C 1200bps, 9600bps Data transmission) |
75 ohms BNC connector (SDI) |
| Recommended Coax Cable |
75 ohms Coax Cable
(Belden 1694A /Max100m) |
75ohms Coax Cable
(example:Belden 8281/Max150m) |
| Direction Adjustment |
with Auto-Tracking function |
| Auto-Tracking Adjustment Range |
Horizontal: 4° Vertical: 4° |
| Operation Temperature Range |
-15°C ~ +40°C |
| Power |
AC100 ~ 120V/230V (±10%) 50/60Hz |
| Power Consumption |
approx.60W (standard configuration)
approx. 65W (with bi-directional configuration) |
approx.50W |
| Dimensions |
284(W) x 332(H) x 502(D)mm [11.2(W) x 13(H) x 19.8(D)inch] |
| Mass |
approx.17Kg [approx.37.4 lbs] |
Please contact Canon office for details on installation.
*Function of weather conditions and acceptable link availability
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