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Fiber Optic Video Communications 
Unidirectional Video + Data Products
MODEL LMDT/DR-4V / 1F |
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| MODEL
LMDT/DR-4V / 1F |
Digital 4 Channel Video Multiplexer
with Return Manchester, RS-422 or Bi-Phase |
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| DESCRIPTION
The DV-4V / 1F series is a reliable, cost effective, stateof-the–art, one fiber, Bi-directional Digital Video and Data transmission system. This fiber optic system transmits four channels of real-time 8 bit video with a return channel of data over one Singlemode or Multimode fiber. The DV-4V / 1F accepts PAL, SECAM, or NTSC formats. The functionality of DV-4V / 1F series are further enhanced by their compatibility with Lascomm’s PC based SpectraSmart, Network Management and Remote Diagnostic Software System.
SpectraSmart supervises the operating parameters
of the transmission system such as status on video levels, sync, carrier detect, voltage, temperature, optical levels, data activity etc.. See the SpectraSmart brochure for more details.
Note: 10 bit version available. See DV-4W/1F series.
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| FEATURES
- Standard 8 Bit Video Digital Encoding
- 4 Real-Time Video Signals w/ Return Data
- RS-422, Manchester or Bi-Phase
- 7 MHz Video Bandwidth
- Meets RS-250C Medium Haul Transmission Specifications
- NTSC, PAL, SECAM Compatible
- Wide Optical Dynamic Range: Eliminates Need For Optical Attenuators
- Laser Based Systems for Multimode and
Singlemode
- Surface Mount Technology (SMT) for High
Reliability and Repeatability
- SpectraSmartTM Network Management
Compatible
- Local LED Status Indicators to Monitor Critical System Diagnostics for Performance Parameters
- ST, FC Optical Connector
- Hot Swappable Cards
- Laser Back - Biased Photo Detector Circuitry for Stable Optical Output Over Full Temperature Range.
- Meets NEMA TS1 / TS2 & CALTRANS Specs.
- 75 Ohm BNC Video Connector (Gold Center Pin)
- Meets EIA RS-170, RS-343A Formats
- DB 9 Type Connectors for Audio
- DC to 1 Mb/s Data Rate
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CONFIGURATIONS
The DV-4V / 1F product family is available as rack mount cards and modules that can be installed in all of Lascomm’s card chassis, desk chaises and 19” racking frames. This system can be configured in either star (module to rack) or
trunking (rack to rack) configurations. These systems can be made a standalone system by using the SR-1000/s, 2 slot desk / wall mount chassis (87VAC-264VAC)
MARKETS
Security and Surveillance
Intelligent Transportation System (ITS)
Access Control Systems
Campus Lecture Networks
Pro. Video / Audio |
SPECIFICATIONS |
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Video |
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Format..................................................
Voltage/Impedance................................
Bandwidth.............................................
Differential Gain.....................................
Differential Phase...................................
SNR......................................................
Return Loss...........................................
Field Tilt................................................
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NTSC, PAL, SECAM
1 Vp-p, 75 Ohm, 1.5 Vp-p
max.
5 Hz to 6.8 MHz
<0.6%
<0.3°
>67 dB (weighted)*
>30 dB
< 0.5% |
* As per RS-250C, measured @ 1Km
(multimode) |
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Connectors |
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Video....................................................
Optical..................................................
Power...................................................
Data.....................................................
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75 Ohm BNC (Gold Center Pin)
ST, FC
See SR-1000 Brochure for details
DB9 Female
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Power**
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Card....................................................
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9 Watts
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Indicator
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1 - Green.............................................
1 - Bi-color...........................................
1 - Bi-color...........................................
1 - Bi-color...........................................
4 - Green.............................................
4 - Bi-color...........................................
1 - Green............................................. |
Power On
TX Carrier/ Laser Over Current
RX Carrier - Present / Error
RX Optical Signal -Present/Absent
Sync. Present
Video Present / Overload
Data Present
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Physical
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Dimensions:
Card....................................................
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Weight:
Module................................................
Number of Rack Slots............................
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160 mm (6.3”) L, 100 mm (4”) W
44 mm (1.7”) H
450 gms (16 Oz)
2
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Enviromental
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Operating Temperature..........................
Storage Temperature.............................
Relative Humidity.................................. |
-40°C
to +74°C
-55°C to +85°C
0 to 95% Non-condensing |
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Quality |
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MTBF...................................................
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>200,000 hours @ Ground Fix
35°C per MIL217F |
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Optical
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Fiber Type/Size
(um) |
Optical Output
(dBm) |
Reciever Sensitivity
(dBm) |
Optical Budget
(dB) |
Wavelength
(nm) |
Optical
Connector |
Optical Dynamic
Range (dB) |
Multimode (FP Laser)
62.5 / 125 |
-3 |
-23 |
20 |
1300 / 850 |
ST |
23 |
Singlemode (FP Laser)
9 / 125 |
-3 |
-23 |
20 |
1310 / 1550 |
ST, FC |
23 |
Singlemode (DFB Laser)
9 / 125 |
+3 |
-23 |
26 |
1310 / 1550 |
ST, FC |
23 |
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