| |
Fiber Optic Video Communications 
Unidirectional Video + Bi-Directional Data
MODEL LMDT/DR-4V2C/2C |
 |
| |
| |
| |
| MODEL
LMDT/DR-4V2C/2C |
Digitally-Encoded Four Channel Video Multiplexer with Two Bi-directional Contact Closure Channels |
|
| DESCRIPTION
The DV-4V2C/2C series products incorporate digital
encoding technology. This fiber optic module transmits
four real-time, high performance 8-bit digitally-encoded video signal with two Bi-directional Contact Closure Channels over one fiber. Each of the Contact Closure channels can be individually configured as either Normally Open (N.O.) or Normally closed (N.C.). These contacts reverts to N.O. state in case of a Fiber break, but can be configured individually as per clients needs . Both Multimode and Singlemode fiber versions are available. Lascomm’s digital product line incorporates plug-in personality signal cards to easily configure a wide variety of module types. The functionality of the DV-4V2C/2C series products are enhanced by their compatibility with Lascomm’s PC based SpectraSmart Network Management & Diagnostic Software system. SpectraSmart supervises the operating parameters of the transmission system such
as the status on video levels, sync, digital carrier detect, voltages, temperatures, optical levels etc. See
SpectraSmart brochure for further details.
Note: System Shipped from the factory is configured as
Normally Open. |
|
|
| FEATURES
- 8-Bit Video Digital Encoding
- Transmits 4 Real-Time Video With 2 Bi-directional Contact Closures
- 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
Specifications
- 75 Ohm BNC Video Connector (Gold Center Pin)
- Meets EIA RS-170, RS-343A Formats
- High Density DB9 (15 Pin) for Contact Closure
|
CONFIGURATIONS
The DV-4V2C/2C product family is available as rack mount cards and modules that can be installed in 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
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
<0.6%
<0.3°
>67 dB (weighted)*
>30 dB
< 0.5% |
* As per RS-250C, measured @ 1Km
(multimode) |
|
Connectors |
| |
|
Video....................................................
Optical..................................................
Power...................................................
Data.....................................................
|
75 Ohm BNC (Gold Center Pin)
ST, FC
See SR-1000 Brochure for details
HD DB9 (15 Pin) Female |
|
|
Power**
|
| |
|
Card....................................................
|
10 Watts
|
|
|
Indicator
|
| |
|
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
Contact active (1 per channel)
|
|
|
Physical
|
| |
|
Dimensions:
Card....................................................
..........................................................
Weight:
Module................................................
Number of Rack Slots............................
|
160 mm (6.3”) L, 100 mm (4”) W
44 mm (1.7”) H
450 gms (16 Oz)
2
|
|
|
Enviromental
|
| |
|
Operating Temperature..........................
Storage Temperature.............................
Relative Humidity.................................. |
-40°C
to +74°C
-55°C to +85°C
0 to 95% Non-condensing |
|
|
Quality |
| |
|
MTBF...................................................
.......................................................... |
>200,000 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 |
-3 |
-24 |
21 |
1300 / 850 |
ST |
24 |
Singlemode (FP Laser)
9 / 125 |
-3 |
-24 |
21 |
1310 / 1550 |
ST, FC |
24 |
Singlemode (DFB Laser)
9 / 125 |
+3 |
-24 |
27 |
1310 / 1550 |
ST , FC |
24 |
|
|
|
| |
|
|
