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Fiber Optic Video Communications 
Unidirectional Video + Bi-Directional Audio
MODEL LMST/SR-1W2A/2A |
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| MODEL
LMST/SR-1W2A/2A |
Digitally Encoded 1 Channel Video
with 2 Channels of Bi-directional Audio |
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| DESCRIPTION
This CS series fiber optic product incorporates digital encoding technology and transmits/receives one real-time, simplex 10-bit video and two full-duplex, 24-bit audio channels over one optical fiber. NTSC, PAL and SECAM video formats are all seamlessly supported. These single fiber, laser based systems are available in both, Multimode and Singlemode modules. The SC series is also compatible with Lascomm’s SpectraSmart Network management and diagnostic PC based system. See the SpectraSmart brochure for additional
details.
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| FEATURES
- One slot digital module design
- 10 Bit Video Digital Encoding
- Real Time Video and Audio Transmission
- 7 MHz Video Bandwidth
- Meets RS-250C Medium Haul Transmission Specifications
- NTSC, PAL, SECAM Compatible
- 2 channels of Bi-directional Audio
(Balanced or Un-balanced)
- 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.
- 75 Ohm BNC Video Connector (Gold Center Pin)
- Meets EIA RS-170, RS-343A Formats
- DB 25 Type Connector for Audio
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CONFIGURATIONS
The SC product family is available as rack mount cards and modules that can be installed in any of Lascomm’s desk chassis or in 19” racking frames. This system can be configured in either star (module to rack) or trunking (rack to rack) configurations. These systems can be transformed in to a standalone module by utilizing an SR-500/S (standard configuration) or an SR-1000/S.
MARKETS
Intelligent transportation systems (ITS)
Security and surveillance
Access Control |
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 @ -3 dB
<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 (module).....................................
Audio....................................................
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75 Ohm BNC (Gold Center Pin)
ST, FC
See SR-1000 Brochure for details
DB25 Female
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Power**
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Card....................................................
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6 Watts
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Indicator
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1 - Green.............................................
1 - Bi-color...........................................
1 - Bi-color...........................................
1 - Green.............................................
1 - Bi-color...........................................
4 - Bi-color...........................................
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Power On
TX Carrier/ Laser Over Current
RX Carrier - Present / Error RX
Video Sync. Present
Video Present / Overload
Audio Present / Overmodulation
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Physical
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Dimensions:
Card....................................................
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Weight:
Module................................................
Number of Rack Slots............................
Module................................................
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160 mm (6.3”) L, 127 mm (5”) W
20mm (0.80”) W
450 gms (16 Oz)
1
See SR-500 Brochure
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Enviromental
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Operating Temperature..........................
Storage Temperature.............................
Relative Humidity.................................. |
-34°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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>170,000 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 |
-5 |
-26 |
21 |
1300 / 850 |
ST |
24 |
Singlemode (FP Laser)
9 / 125 |
-5 |
-26 |
21 |
1310 / 1550 |
ST, FC |
24 |
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