|
Fiber Optic Audio Communication Equipment  MODEL LMDT/R-XXA |
 |
| |
|
| |
MODEL LMDT/R-XXA |
4, 8, 12 or 16 Channels of Audio |
|
 |
 |
| |
|
FEATURES
- Up to 16 Channels of 24 bit Digitally Encoded Audio
Channels over One Fiber
- Laser Based Systems for Multimode and Singlemode Fiber
- Surface Mount Technology (SMT) for High Reliability and Repeatability
- SpectraSmart Network Management Compatible
- Local LED Status Indicators to Monitor Critical System
Diagnostics and Performance Parameters
- ST, FC Optical Connector
- Hot Swappable Rack Cards
- Back - Biased Photo Detector Circuitry for Stable
Optical Laser Output Over Full Temperature Range
- Meets NEMA TS1 / TS2 & CALTRANS Specifications
- Utilizes Internal Switching Power Supplies
- Automatically Resettable Solid-State Current Limiters
on All Power Lines: Provides Equipment Protection
- DB 9 Type Connectors for Audio
- Wide Optical Dynamic Range: Optical Attenuators are Never Needed
DESCRIPTION
The LMDV -A series product incorporates a new digital encoding technology. This fiber optic system is available in different configurations ranging from minimum of 4 Channel up to maximum of 16 Channels of Uni-directional Audio signals over one Singlemode or Multimode fiber. Lascomm’s digital product line incorporates plug-in personality circuit cards to easily configure a wide variety of data channels on this system. The functionality of the LMDV-A series are furthure 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 Digital carrier detect, voltages, temperatures, optical levels , Laser currents, Digital Power supply etc. See SpectraSmart brochure for further details.
CONFIGURATIONS
The LMDV- A product family is available as rack mount cards suitable for mounting in Meridian card chassis and utilizes 2 card slots. These products can easily be converted to a Standalone module with the SR-1000/S, Desk / Wall mount 2-slot chassis See SR-1000 brochure for further details.
MARKETS
CCTV Networks
Intercomms
Security & Surveillance
TECHNICAL SPECIFICATIONS |
- Audio:
| In/Out Impedance |
600 Ohms (Bal. / Un Bal.) |
| Frequenct Response |
10Hz to 20KHz |
| SNR |
>90dB (Weighted) @ 1KHz |
| In / Out Level |
-6 to +6 dBm (4VP-Pmax.) |
| Total Harmonic Distortion |
< 0.01% @ 1 KHz |
| Intercom |
24 Bit |
- Connectors:
| Audio |
DB 9F |
| Optical |
ST , FC |
- Enviromental:
| Operating Temperature |
-34oC to +74oC |
| Storage Temperature |
-55oC to +85oC |
| Relative Humidity |
0 to 95% Non-condensing |
- Optical:
NOTE: Standard Systems incorporates Fabry Perot Lasers
- Indicators (LEDs):
| 1- Green |
Power On |
| 1- Bi-color |
TX Carrier / Laser Over Current |
| 1- Bi-color |
RX Carrier - Present / Error |
| 1- Bi-color |
RX Optical Signal - Present/Absent |
| 1- Green |
Audio Present ( One Per Channel) |
| 1- Red |
Audio Overload (One Per Channel) |
| 1- Bi-color (Optional) |
Card Diagnostics |
- Physical:
| Dimensions: |
|
| Card |
160 mm (6.3”) L, 100 mm (4”) W 44mm (1.7”) H |
| Weight: |
|
| Card |
450 g (16 oz.) |
| Number of Rack Slots |
Two |
- Quality:
| MTBF |
>200,000 hours, @ 35oC Ground Fix as per MIL 217F |
- Power:
- Model No.:
| DT-4A-1. . . . . . . . . . . . . . 4 Ch. Transmitter, 1300 nm, MM |
| DT-8A-1. . . . . . . . . . . . . . 8 Ch. Transmitter, 1300 nm, MM |
| DT-12A-1. . . . . . . . . . . . . 12 Ch. Transmitter, 1300 nm, MM |
| DT-16A-1. . . . . . . . . . . . . 16 Ch. Transmitter, 1300 nm, MM |
| |
| DT-4A-3. . . . . . . . . . . . . . 4 Ch. Transmitter, 1300 nm, SM |
| DT-8A-3. . . . . . . . . . . . . . 8 Ch. Transmitter, 1300 nm, SM |
| DT-12A-3. . . . . . . . . . . . . 12 Ch. Transmitter, 1300 nm, SM |
| DT-16A-3. . . . . . . . . . . . . 16 Ch. Transmitter, 1300 nm, SM |
| |
| DR-4A-1. . . . . . . . . . . . . . . . 4 Ch. Receiver 1300 nm, MM |
| DR-8A-1. . . . . . . . . . . . . . . . 8 Ch. Receiver, 1300 nm, MM |
| DR-12A-1. . . . . . . . . . . . . . . 12 Ch. Receiver, 1300 nm, MM |
| DR-16A-1. . . . . . . . . . . . . . . 16 Ch. Receiver, 1300 nm, MM |
| |
| DR-4A-3. . . . . . . . . . . . . . . . 4 Ch. Receiver, 1310 nm, SM |
| DR-8A-3. . . . . . . . . . . . . . . . 8 Ch. Receiver, 1310 nm, SM |
| DR-12A-3. . . . . . . . . . . . . . . 12 Ch. Receiver, 1310 nm, SM |
| DR-16A-3. . . . . . . . . . . . . . . 16 Ch. Receiver, 1310 nm, SM |
| |
|
|
|
OPTICAL
Fiber Type/Size
(um) |
Optical Output
(dBm) |
Receiver Sensitivity
(dBm) |
Optical Budget
(dB) |
Wavelength
(nm) |
Optical
Connector |
Optical Dynamic
Range (dB) |
| |
|
|
|
|
|
|
Multimode (FP)
62.5 / 125 |
-4 |
-24 |
20 |
1300 |
ST |
24 |
Singlemode (FP)
9 / 125 |
-4 |
-24 |
20 |
1310 |
ST , FC |
24 |
Singlemode (DFB)
9 / 125 |
+3 |
-24 |
27 |
1550 |
ST , FC |
24 |
|
|
|
|
|
|
|
