| |
Fiber Optic Video Communications 
Unidirectional Video + Bi-Directional Data & Audio
MODEL LMST/SR-1W2A2C2G/2A2C2G |
 |
| |
| |
| |
| MODEL
LMST/SR-1W2A2C2G/2A2C2G |
Digitally Encoded 1 Channel Video with
2 Channels of bi-directional Data,
Audio and Contact Closures |
|
| DESCRIPTION
This module in the SC product family incorporates an all-digital encoding technology that transmits one real-time, simplex, 10 bit composite video, two full duplex 24 bit audio, and two user selectable, full duplex RS-232, RS-422, Manchester, Bi-Phase or in combination. RS-485 ( 2 or 4 wire ) is also supported, but only as a single full duplex channel. In addition, two full duplex contact closure channels are included. These single fiber, laser based systems are available in both, Multimode and Singlemode modules. The versatility of the SC series is enhanced by SpectraView, an On-Screen Video Diagnostic / Setup firmware system and SpectraSmart, an optional PC Based Network Diagnostic System. SpectraView monitors the integrity of the video signal and the fiber link. A break in the fiber path will cause a loss of fiber alarm to be displayed on an associated monitor while loss of video sync will generate a loss of sync alarm on the monitor. SpectraView is easy to use, always active and eliminates the need for additional test equipment. SpectraView also includes a selectable on-board audio & data test signal generator with built-in local and remote loop-back functions. In addition a video grey scale function is included to assist in monitor and system setup. If greater diagnostic capability is required, the SC series is also available with Lascomm’s SpectraSmart Network management and diagnostic PC based system. See the SpectraSmart or SpectraView brochures for additional details.
|
|
|
| FEATURES
- 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
- Two Channels of Bi-Directional Audio, Multi-protocol Data and Contact Closure
- 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
- 3-pin Screw Terminal Connectors for Audio
|
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 |
 |
Video |
| |
|
Format..................................................
Voltage/Impedance................................
Bandwidth.............................................
Differential Gain.....................................
Differential Phase...................................
SNR......................................................
Return Loss...........................................
Field Tilt................................................
|
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) |
|
Connectors |
| |
|
Video....................................................
Optical..................................................
Power (module).....................................
Data/Audio/Contact closure.....................
|
75 Ohm BNC (Gold Center Pin)
ST, FC
See SR-1000 Brochure for details
DB25 Female
|
|
|
Power**
|
| |
|
Card....................................................
|
6 Watts
|
|
|
Indicator
|
| |
|
1 - Green.............................................
1 - Bi-color...........................................
1 - Bi-color...........................................
1 - Bi-color...........................................
1 - Green.............................................
2 - Green.............................................
2 - Bi-color...........................................
2 - Green.............................................
|
Power On
TX Carrier/ Laser Over Current
RX Carrier - Present / Error RX
Video Present / Overload
Sync. Present
Data Present
Audio Present / Overmodulation
Contact Closure Present
|
|
|
Physical
|
| |
|
Dimensions:
Card....................................................
..........................................................
Weight:
Module................................................
Number of Rack Slots............................
Module................................................
|
160 mm (6.3”) L, 127 mm (5”) W
20mm (0.80”) W
450 gms (16 Oz)
1
See SR-500 Brochure
|
|
|
Enviromental
|
| |
|
Operating Temperature..........................
Storage Temperature.............................
Relative Humidity.................................. |
-40°C
to +74°C
-55°C to +85°C
0 to 95% Non-condensing |
|
|
Quality |
| |
|
MTBF...................................................
.......................................................... |
>170,000 hours @ Ground Fix
35°C per MIL217F |
|
|
Optical
|
| |
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 |
|
|
|
| |
|
|
