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Fiber Optic Video Communications 
Unidirectional Video + Bi-Directional Data
MODEL LMST/SR-1W2G/2G |
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| MODEL
LMST/SR-1W2G/2G |
Digitally Encoded 1 Channel Video with
2 Channels of Bi-directional Data |
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| DESCRIPTION
This module in the SC product family incorporates an all-digital encoding technology that transmits one real-time, simplex 10-bit video channel and two user selectable, full duplex, RS-232, RS-422, Manchester, Bi-Phase data channels. One, userselectable, single channel, full duplex, full-speed RS-485 (2 or 4 wire) data channel is also supported. 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 full-duplex, multiprotocol data channels
- 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 Connectors for Data
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CONFIGURATIONS
The SC product family is available as rack mount cards and modules that can be installed in either 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 made a
standalone system by using the SR-500/S, SR-1000/s, 1 or 2 slot desk / wall mount chassis (87 VAC- 264VAC)
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).....................................
Data/Audio/Contact closure.....................
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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 - Bi-color...........................................
1 - Green.............................................
2
- Green.............................................
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Power On
TX Carrier/ Laser Over Current
RX Carrier - Present / Error RX
Video Present / Overload
Video Sync. Present
Data Present
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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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