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Fiber Optic Video Communications 
Unidirectional Video Products
MODEL LM2000 |
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| MODEL
LM2000 |
2 Channel Video Mux |
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| DESCRIPTION
The 2000i is a reliable, cost effective,
state-of-the-art, one fiber single wavelength
video transmission system. The 2000i is
frequency Modulated/Frequency Division Multiplexed
(FM/FDM) for superior performance. This
system is designed to eliminate cross talk
on adjacent channels. This fiber optic system
transmits two channels of real-time video
signals over one fiber. The 2000i accepts
PAL, SECAM, and NTSC formats. B&W or
Color signals are seamlessly transmitted
distances of up to 5Km (multimode) and 80
km (singlemode). The 2000i capabilities
are enhanced by it's 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,
FM carrier detect, voltage, temperature,
optical levels, etc., and external equipment
which are attached to the Lascomm equipment.
See the SpectraSmart™ brochure for
more details.
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| FEATURES
- SpectraSmart™ Network Management Compatible
- Surface Mount technology (SMT) for High Reliability
and Repeatability
- Hot-swappable Rack Cards
- FM/FDM Design
- Transmits Two Real-Time Video Signals
- ST™, FC Optical Connector
- 7 MHz Video Bandwidth per Individual Channel
- Requires No In-field Electrical or Optical
Adjustments
- Meets EIARS-170, RS-343A
- Meets NEMATS1 /TS2 and Caltrans specifications
- Utilizes Internal Switching Power Supplies
- Meets RS-250C Transmission Requirements
- NTSC, PAL, SECAM Compatible
- Automatic Resettable, Solid-State Current
Limiters on All Power Lines: Provides Equipment
Protection
- Wide Optical Dynamic Range: Optical Attenuators
are Never Required
- BNC Video Connector
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CONFIGURATIONS
The 2000i product family is available as rack
mount cards 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) ortrunking (rack to rack)
configurations. These products require no user
adjustments & features superior quality and
performance.
APPLICATIONS
- Security and Surveillance
- Intelligent Transportation System (ITS)
- Access Control Systems
- Campus Lecture Networks
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SPECIFICATIONS |
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Video |
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Format..................................................
Voltage/Impedance................................
Bandwidth.............................................
Differential Gain.....................................
Differential Phase...................................
SNR......................................................
Return Loss...........................................
Field Tilt................................................
Highest Carrier Frequency........................ |
NTSC, PAL, SECAM
1 Vp-p, 75 Ohm, 1.5 Vp-p
max.
5 Hz to 7 MHz @ -3 dB
<2% typical
<1.5° typical
60 dB weighted*
>30 dB
<0.5% max.
75 MHz |
* As per RS-250C, measured @ 1Km
(multimode), @ 10Km (singlemode) |
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Connectors |
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Video...................................................
Optical.................................................
Power..................................................
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75 Ohm BNC (Gold Center
Pin)
ST™, FC
2 pin Terminal Block |
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Power**
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Reciever Card........................................
Reciever Module....................................
Transmitter Card....................................
Transmitter Module................................
Adapter for SR-500/S..............................
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3.3
W
138 mA @ 24 VAC
2.4 W
100 mA @ 24 VAC
Model WP-24 |
** Due to variations of drivers
and diagnostic options, power
shown at maximum measurements |
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Indicators (LEDs)
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Red..................................................... |
Power
On |
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Physical
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Dimensions:
Module (w/SR-500/S).............................
..........................................................
Card....................................................
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Weight:
Module (w/SR-500)...............................
Card...................................................
Number of Rack Slots............................
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182 mm (7.16") L,
132 mm (5.21")W
29 mm (1.15") H
160 mm (6.3") L,
20 mm (0.8") W
100 mm (4") H
900 g (32 oz.)
450 g (16 oz.)
One
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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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>190,000
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* (Laser) |
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| 62.5/125 |
-7 |
-24 |
17** |
850 |
ST |
39 |
| 62.5/125 |
-16 |
-24 |
18** |
1300 |
ST |
39 |
| Singlemode (Laser) |
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| 9/125 |
-7*** |
-26 |
19 |
1310 |
ST,FC |
41 |
| 9/125 |
-10*** |
-26 |
16 |
1550 |
ST,FC |
41 |
* Distance is limited to fiber
loss, splices and fiber bandwidth
** For 50/125μm fiber, subtract
3dB
*** Higher output lasers available |
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