Meridian Technologies ST-2A-3 Fiber Transmission System (Transmitter)
SKU: 91782011250

Meridian Technologies ST-2A-3 Fiber Transmission System (Transmitter)

Sale price$36976.50 Regular price$41085.00
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Description

Meridian Technologies ST-2A-3 Fiber Transmission System (Transmitter)Transmitter Singlemode Fiber Unidirectional Audio Hot Swappable The ST 2A 3 Fiber Transmission System (Transmitter) from Meridian Technologies incorporates an all digital encoding technology that supports two unidirectional audio channels over one optical fiber. This model uses singlemode fiber. It is well suited for use in intelligent transportation systems, security & surveillance work, access control, among many other applications and settings.

  • Transmitter
  • Singlemode Fiber
  • Unidirectional Audio
  • Hot-Swappable

The ST-2A-3 Fiber Transmission System (Transmitter) from Meridian Technologies incorporates an all-digital encoding technology that supports two unidirectional audio channels over one optical fiber. This model uses singlemode fiber. It is well suited for use in intelligent transportation systems, security & surveillance work, access control, among many other applications and settings.

Local indicators provide a visual indication of the status of each audio channel. 3-pin terminal blocks are used for connection of the audio channel interfaces. This series is also compatible with Meridian's SpectraSmart Network management and diagnostic PC-based system.

The DigiSlim product family is available as rack mount cards and modules that can be installed in any of Meridian'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 using SR-500/S (standard configuration) or SR-1000/S frames.

The device supports unidirectional audio
This model is a laser-based system that uses singlemode fiber
This model uses ST or FC fiber connectors
It features 24-bit native digital encoding
It uses Surface Mount Technology (SMT) for high reliability and repeatability
This solution is designed to be reliable and repeatable
Local LED indicators provide visual cues for system status
System diagnostics are available for performance parameters
The card is hot-swappable
The laser features biased photo-detector circuitry for stable optical output over the full temperature range
It meets NEMA TS1/TS2 and CALTRANS specifications
It uses internal switching power supplies
Automatically resettable solid-state current limiters are included on all power lines to provide equipment protection
A wide optical dynamic range means optical attenuators are never needed
Screw terminals are available for audio
In the Box
Meridian Technologies ST-2A-3 Fiber Transmission System (Transmitter)
  • Ten-Year Warranty Against Defects in Material & Workmanship (from Original Date of Shipment)
Audio I/O Impedance: 600 Ohm (Balanced), 47 kOhm (Unbalanced)
Frequency Response: 10Hz to 20KHz
SNR: >90dB (Weighted) @ 1KHz
In/Out Level: -8 to +8dBm (4Vp-p max.)
Total Harmonic Distortion: <0.01% @ 1KHz
Resolution:
24 Bi
Optical Fiber Type/Size (um): Singlemode (FP Laser) 9/125
Optical Output (dBm): -5
Receiver Sensitivity (dBm): -26
Optical Budget (dB): 21
Wavelength (nm): 1310/1550
Optical Connector: ST, FC
Optical Dynamic Range (dB): 24
Fiber Data Rate: 250Mbps
Connectors Video: 75 Ohm BNC (Gold Center Pin)
Optical: ST, FC
Audio/Contact Closures: 14-pin Screw Terminals
Indicators (1) Green: Power On
(1) Bi-Color: TX Carrier/ Laser Over Current
(1) Bi-Color: RX Carrier - Present / Error
(1) Bi-Color: Audio Present / Overmodulation
Life >170,000 hours @ Ground Fix
35C degrees per MIL217F
Power 6W
Dimensions (HxWxD) 0.8 x 6.5 x 5" (20 x 160 x 127mm)
(1) slot
Weight 1 lbs (0.45kg)
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: 91782011250

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4.2 ★★★★★
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Verified Purchase
James Galloway
Phoenix, US
★★★★★ 5
Great buy!
Color: Blue
Great quality! Easy to adjust! Keeps time well and looks really expensive!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 2, 2026
R
Verified Purchase
Ravante Robinson
Carnegie, US
★★★★★ 4
Watch
Color: Silver white
Its looks high end for the price like Nixon high end but the latch gets loose easily
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 1, 2026
A
Verified Purchase
Amazon Customer
Massapequa, US
★★★★★ 5
I like it a lot
Color: Rose gold, Color: Rose gold
Very nice watch. I've had it one day and already received compliments. The color is reserved yet striking. I found it easy to adjust the size.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
N
Verified Purchase
Nitin
Louisville, US
★★★★★ 5
Nice Patek Phillip replica!
Color: Rose gold, Color: Rose gold
Nice watch! Doesn't look cheap. Casual and office wear, both ok. Removing links was easy. Decent size, good on my wrist. These days smaller watches are in trend and it does fit the requirement. Color is fancy. In low light conditions it does get darker hues and it looks even better to me.
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Reviewed in the United States on February 5, 2026
I
Verified Purchase
Isaac Young
Battle Creek, US
★★★★★ 3
Packaging is most disappointing
Color: Black
Giving a 3-star at the moment because I just received the watch and usually comment on a new collection addition after about a week. •biggest turn off and cause for 3 star upon receipt is because of packaging. The main box seemed already used and returned or carelessly handled & very basic. How it's advertised & described as well as the image seller portrays of the product, the packaging fails at "luxury" depiction. •Link removal tool is very basic but this was a $23.00 watch. Because I am a collector I knew to pay attention to how pins are removed and had no problems removing the 4 links required to meet my desired size. •A few reviews said it's heavy and I'm used to pretty heavy + 44-48mm bezels so to my standards, I wouldn't 100% say it feels cheap(i mean c'mon it is so can't be too judgemental) but it slightly does feel "toyish" •Bracelet out the package even with plastic all over, came with two dot sized blemishes i keep focusing on and upset at. •Many reviews said after two hours, the time isn't accurate; thus far, time is fine •A few reviews said the double clasp is weak. 1 time it did loose but after removing links, ive done a lot of shaking and wrist action to test the clasps and nothing so far to match others experience •It has a nice appearance, can pass for business and casual •For a $26.00 watch after taxes I'm not disappointed as of yet besides the blemishes and packaging but will revisit in a week or so. •I read that the date doesn't keep accurately so I will update review after a trial period • I will say, if you dress correctly with this piece, I feel it has potential to draw attention from it's design
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Reviewed in the United States on November 3, 2025

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