SKU: 1497967103

56EYA 1U 4Post High Power Er/Yb Doped Fiber Amplifier EDFA

Sale price$269.75 Regular price$299.72
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Description

56EYA 1U 4Post High Power Er/Yb Doped Fiber Amplifier EDFAThe 56EYAxx series high power optical amplifier is a high power multi port output fiber amplifier with a gain spectrum bandwidth of 1535~1565nm. It is mainly designed for applications of CATV or 1~8 continuous strip channels (ITU wavelengths). It provides a flexible, low cost solution for large scale FTTH coverage of CATV systems in large and medium sized cities. 56EYAxx can achieve single wavelength cable TV transmission, CWDM single fiber three

The 56EYAxx series high-power optical amplifier is a high-power multi-port output fiber amplifier with a gain spectrum bandwidth of 1535~1565nm. It is mainly designed for applications of CATV or 1~8 continuous strip channels (ITU wavelengths). It provides a flexible, low-cost solution for large- scale FTTH coverage of CATV systems in large and medium-sized cities.

56EYAxx can achieve single-wavelength cable TV transmission, CWDM single-fiber three-wave, flat gain, DWDM; its reliable and excellent performance ratio between the main application of FTTH, FTTB, DBS, MMDS, FTTX pon, is to build CATV large Medium-sized optical fiber transmission network is an important equipment.

Erbium co-doped double-clad fiber technology.

Built-in low-noise preamplifier eliminates the need for EDFA cascading, greatly reducing system CNR and MER degradation.

Output total power range: up to 23dBm ~ 37dBm (5W) optional.

Output power adjustable range +0.5~-4dBm.

Perfect network management interface, in line with SNMP network management protocol.

Adopts a mature dual-power hot backup structure dedicated to servers, and cooperates with a microcomputer-controlled intelligent temperature control system to effectively improve system reliability.

Adopt 144*32 blue dot matrix LCD display to realize parameter on-site monitoring.

The front panel indicator monitors and instructs the operatingstatus of the equipment parameters in real time. Easy to find problems in time.

The back panel can be flexibly removed and replaced according to the number of output ports.

Technical parameters 56EYAxx
Maximum received range 1535-1565nm
Lowest input optical power -10dBm
The highest input optical power +10dBm
Extreme operating temperature -5℃ ~+42℃
Limit supply voltage AC90~265V or DC38~58V


Technical parameters 56EYAxx
Wavelength 1535-1565nm
Input power range -5dBm~+10dBm(normal input -2dBm~+5dBm)
Output optical power 26dBm~37dBm
Optical power stability ±0.1dBm
Noise figure ≤ 5.0dB(Pin=0dB)
Input return loss ≥ 45dB
Output return loss ≥ 45dB
C/N ≥ 50dB
C/CTB ≥ 63dB
C/CSO ≥ 63dB
Optical connector SC/APC;SC/PC;LC/APC;LC/PC
Supply voltage AC110/220V(90V ~ 265V)  or  DC48V(38 ~ 58V)
Consumption ≤ 50w
Working temperature -5℃ ~+42℃
Storage temperature -30℃ ~ +70℃
Maximum working relative
humidity Max 95% non-condensing
Size 380(W)*482(L)*44(H)mm
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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: 1497967103

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4.6 ★★★★★
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B. Swenson
West Palm Beach, US
★★★★★ 5
Maestro House Mini Coffee Scale
I have begun to drink tea, pu’erh tea to be specific. I have several varieties and I have had a problem with getting consistent results. The varieties can be very different in size depending on when the leaves are harvested (leaves harvested in spring are much smaller). So the easiest way to get consistent results is by weight. This scale is very easy to use with a ceramic tea scoop, set the tea scoop on the scale, zero it out and add tea leaves. This has made my results much better, without the wild swings in strength I had been getting before trying to eyeball even measures. This scale gives me accurate measurements to one tenth of a gram.
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Reviewed in the United States on April 15, 2026
B
Verified Purchase
bicyclemayhem
Massapequa, US
★★★★★ 4
Mostly great, except one little annoyance
Color: Black&Silver, Color: Black&Silver
Pros- lightweight, small, very accurate, easy to clean, timer included. Cons- I use this to brew espresso on my Breville Touch and to get an accurate reading, you have to place something flat (structured) under the scale. Otherwise the reading just jumps all over the place. I know lot of espresso machines have the same base, so this might be an issue for some! This is my reason for 4/5 stars. It’s an easy fix, it’s just kind of annoying. Value for the price seems to be on point. It’s easy to clean. It has a timer as well as scale (nice for espresso). Buttons work the first time you push them. That’s it that’s all
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Reviewed in the United States on January 31, 2026
P
Verified Purchase
payton whitten
Battle Creek, US
★★★★★ 5
Beautiful, functional, and perfect for a stylish coffee bar
I absolutely love this scale. As someone who cares about both function and aesthetics, this was exactly what I was looking for. It’s refreshing to find a high-quality kitchen tool that doesn’t force you to sacrifice the look of your space. The white and gold design is stunning and fits perfectly on my coffee bar without looking bulky or industrial. Functionally, it works flawlessly. I primarily use it to measure my coffee beans, but I’ve also used it for other items, and it’s consistently accurate and easy to use. The size is perfect — compact enough to keep out on the counter without taking up space, yet large enough to be practical and stable. The display is clear, the buttons are responsive, and the overall build feels solid and well made. I also appreciate how intuitive it is to use — no learning curve at all. If you’re someone who loves a beautiful, cohesive kitchen setup but still wants reliable, quality tools, I would highly recommend this scale. It’s small, stunning, and performs exactly as it should.
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Reviewed in the United States on January 4, 2026
C
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Caroline Rose
Phoenix, US
★★★★★ 5
Great scale, an excellent buy
Color: Black&Silver
Is it possible to fall in love with a scale? I unboxed this one and, without reading any directions, put an empty 1/4 cup on it, turned the scale on, filled the 1/4 cup with coffee beans till I had the desired 17 or so grams, and turned the scale off. Easy-peasy! It’s small but sensitive, able to tell when a single bean has been added or removed. I almost didn’t get it because of the charging issue, but at least it tells you what the current charge is, and the way I use it I believe it will last several months without recharging. I’m so glad I bought this scale!
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Reviewed in the United States on April 14, 2026
R
Verified Purchase
R. Kernisant
Carnegie, US
★★★★★ 5
Simple yet easy must have for discerning coffee drinkers
Color: Black&Silver
I seem to never get the same results from my coffee machine and it varied even more with the new brand that we just bought. I now have to make more adjustments with the water temperature, based on age, type of beans, etc. That affects the amount of ground dispensed and consistency in the shot until I get a new batch dialed in. So the only way to regulate these changes is to weigh both the beans and water. Using this little scale has made things easier, less frustrating and more predictable. What’s awesome is that it will automatically begin the timer with the first drop and stop when the pressure remains constant. Simple yet easy and super convenient. If you are looking for a great little digital scale this should do the trick. Highly recommended.
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Reviewed in the United States on February 4, 2026

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