SKU: 57121786950

Meridian Technologies Digitally Encoded 2 Unidirectional Audio Channel

Sale price$71023.50 Regular price$78915.00
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Description

Meridian Technologies Digitally Encoded 2 Unidirectional Audio Channel2 Unidirectional Channels (24 Bit) SpectraSmart Network Management 3 Pin Terminal Blocks Local Indicators Surface Mount Technology (SMT) Hot Swappable Rack Card Back biased Photo Detector Circuitry Resettable Solid State Current Limiter The Meridian Technologies Digitally Encoded 2 Unidirectional Audio Channel, a part of the SA series, can receive two 24 bit unidirectional audio channels over a single optical fiber. This series is compatible with

  • 2 Unidirectional Channels (24 Bit)
  • SpectraSmart Network Management
  • 3-Pin Terminal Blocks
  • Local Indicators
  • Surface Mount Technology (SMT)
  • Hot Swappable Rack Card
  • Back-biased Photo Detector Circuitry
  • Resettable Solid-State Current Limiter

The Meridian Technologies Digitally Encoded 2 Unidirectional Audio Channel, a part of the SA series, can receive two 24-bit unidirectional audio channels over a single optical fiber. This series is compatible with Meridian's SpectraSmart Network Management and diagnostic PC based systems, which offer real-time identification of faults and out-of-tolerance conditions. The channels are used in intelligent transportation systems (ITS), security and surveillance, and access control.

Local indicators allow you to view the operations of each audio signal; local LED status Indicators help monitor system diagnostics and performance parameters. For single mode fibers, laser based systems are used; for highly reliable and repeated output, Surface Mount Technology (SMT) is used. FC optical connectors and hot swappable rack cards allow you to remove the card even when the system is operational. To obtain stable optical laser output over full temperature range, it has a back-biased photo detector circuitry.

The unidirectional audio channel uses internal switching power supplies and meets NEMA TS1 / TS2 & CALTRANS specifications. To provide protection from fault currents, the equipment has automatically resettable solid-state current limiters on all power lines. Wide optical dynamic range allows clear image capture even when lighting intensities vary widely across the field-of-view. It has a 3-pin screw terminal connector for convenient and easy connection of the audio channel interfaces.

Receives two 24-bit unidirectional audio channels over a single optical fiber compatible with Meridian's SpectraSmart Network management and diagnostic PC based system
Local indicators - view the operations of each audio channel
Local LED status indicators are used to monitor critical system diagnostics and performance parameters
Laser-based system for single mode fiber
Surface Mount Technology (SMT) for high reliability and repeatability
FC optical connector
Hot-swappable rack card - remove card when the system is operational
Back-biased photo detector circuitry for stable optical laser output
Internal switching power supplies
Meets NEMA TS1 / TS2 & CALTRANS specifications
Automatically resettable solid-state current limiters for protection from fault currents
Wide optical dynamic range and 3-pin terminal connectors for easy and convenient connection of the audio channel interfaces
In the Box
Meridian Technologies Digitally Encoded 2 Unidirectional Audio Channel
  • 1-Year Warranty
Audio I/O Impedance: 600 Ohm (Bal.), 47 KOhm (Un Bal.)
Frequency Response: 10 Hz to 20 KHz
SNR: >90dB (Weighted) @ 1 KHz
In/Out Level: -8 to +8 dBm (4Vp-p max.) / (+18 dBm available on request)
Total Harmonic Distortion: <0.01% @ 1KHz
Resolution: 24 Bit
Optical Fiber Data Rate: 250 Mb/s
Connectors Video: 75 Ohm BNC (Gold Center Pin)
Optical: ST, FC
Audio: 3-pin Screw Terminal Blocks
Power 6W
Number of Slots 1
Quality MTBF: >170,000 hours @ Ground Fix 35�C per MIL217F
Operating Temperature -29 ~ 23�F (-34 ~ +74�C)
Dimensions (WxHxD) 0.8 x 5 x 6.3" (20 x 127 x 160mm)
Weight 16 oz (450g)
Packaging Info
Package Weight 1.5 lb
Box Dimensions (LxWxH) 10.0 x 7.0 x 3.0"
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 57121786950

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Diane K Jones
Chelsea, US
★★★★★ 5
Great coloring books
Format: Paperback
These are fantastic for young children..or adults that still take time to color for relaxation
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Reviewed in the United States on February 4, 2026
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MJBMCW
Louisville, US
★★★★★ 5
Well done coloring book
Format: Paperback
Well done coloring book. Nice format and story telling.
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Reviewed in the United States on October 12, 2025
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Kathleen Epperson
Alexandria, US
★★★★★ 5
PChristmas is coming, never herts to plan ahead.
Format: Paperback
Very nice, looking forward to giving it to my grandson.
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Reviewed in the United States on September 29, 2025
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Carnegie, US
★★★★★ 5
Actually is gigantic
Format: Paperback
Actually is very thick. This is a perfect gift. I will buy a box of these to hand out to my four grandsons and as gifts to other children in the future.
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Reviewed in the United States on March 24, 2026
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WackyMom
Alexandria, US
★★★★★ 4
Lots to love, but pages are thin
Format: Paperback
This is a great little book with a variety of pictures and some nice short descriptions to stimulate conversation. My main problem with it is that the pages are thin and when my 5 year old used a marker on them, it bled through 3 pages. (These were not particularly potent markers; if anything they were all bit dry and worn out.) Use crayons and you should be fine.
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Reviewed in the United States on February 8, 2025

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