SKU: 40027033501

Cudy Single Mode 1.25G LC Bi-Directional SFP 20km

Sale price$98.10 Regular price$109.00
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Description

Cudy Single Mode 1.25G LC Bi-Directional SFP 20kmCudy's CD SFP SMB is your answer for efficient and cost effective single mode fibre deployments! These bi directional modules redefine connectivity standards with a powerful design optimised for 1. 25 Gbps transmission over distances of up to 20km. The CD SFP SMB modules are sold as a pair and feature a smart SFP package with LC connectors, ensuring cross vendor compatibility. What distinguishes them is their novel application of bi directional

Cudy's CD-SFP-SMB is your answer for efficient and cost-effective single-mode fibre deployments! These bi-directional modules redefine connectivity standards with a powerful design optimised for 1.25 Gbps transmission over distances of up to 20km.


The CD-SFP-SMB modules are sold as a pair and feature a smart SFP package with LC connectors, ensuring cross-vendor compatibility. What distinguishes them is their novel application of bi-directional technology, which enables duplex transmission on a single fibre by utilising two distinct wavelengths for TX and RX on the same optical strand. This not only improves performance but also significantly lowers installation costs.


Choose between the SM100GSB-20A with a 1310nm FP laser and a 1550nm PIN photodetector or the SM100GSB-20B with a 1550nm DFB laser and a 1310nm PIN photodetector to meet your specific requirements.


These modules provide dependable performance because they are powered by a single +3.3V power supply and have an LVPECL-compatible data input/output interface. The CD-SFP-SMB provides a strong and secure connection thanks to its low EMI and excellent ESD protection. These modules prioritise environmental sustainability while adhering to RoHS and SFF8472 standards.


FEATURES:



  • SFP package with LC connector

  • SM100GSB-20A: 1310nm FP Laser and 1550nm PIN photodetector

  • SM100GSB-20B: 1550nm DFB Laser and 1310nm PIN photodetector

  • Up to 20 km transmission on SMF

  • +3.3V single power supply

  • LVPECL-compatible data input/output interface

  • Low EMI and excellent ESD protection

  • Compatible with RoHS

  • Compatible with SFF8472


SPECIFICATIONS:



  • Ethernet Channel Speed: 1.25 GB/s

  • Fibre Channel Speed: 1.06 Gb/s

  • Form Factor: SFP (BiDi)

  • Mode: Single Mode

  • Supported Distance: 20km

  • Wavelength: 1310nm / 1550nm

  • Optical Eye Diagram: IEEE 802.3z and ANSI Fibre Channel Compatible

  • Input Differential Impendence (Min) (Max): 90, 110 Ohm

  • Data Input Swing Differential (Min) (Max): 500, 2400 mV

  • Output differential impendence (Typ): 100 Ohm

  • Data Input Swing Differential (Min) (Max): 370, 2000 mV

  • Supply Voltage (Min) (Max): 3.15, 3.45 V

  • Operating Case Temperature (Min) (Max): 0, 70 ℃

  • Voltage: 3-15 ~ 3.45 V

  • Bias Current: 10 ~ 80 mA

  • Tx Power: -9 ~ -3 dBm

  • Rx Power: -26~-3 dBm


WHAT’S IN THE BOX:



  • Cudy 1.25Gbps BIDI SFP Optical Transceiver 20Km DDM x1

  • Installation Guide x1

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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  • 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: 40027033501

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4.3 ★★★★★
Based on 16 reviews
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Frau_Klink
Louisville, US
★★★★★ 5
Keeps me nice and warm in Alaskan winters!
Size: Oversize, Style: Solid, Color: Dark Purple, Size: Oversize, Style: Solid, Color: Dark Purple
As you've probably guessed from the title of my review, I live in Alaska. In my part of the state, the temperature gets down to as low as -25°F in the winter, so I decided to get this to help keep myself warm. (Part of it was self preservation; my mom flat-out refuses to turn the heat up past 69° F.) And it doesn't help that I have defective fat either. Apparently my body thinks I live in the Southern Hemisphere or something, because it keeps me warm in what would be winter for them, but is summer for me. The opposite happens in the winter for me. So I decided to bite the bullet and make the purchase...and let me tell you, this blanket/robe works MARVELOUSLY! It's so fluffy and warm, I rarely have to turn on my space heater anymore. Now I'll admit, I was a little hesitant to bite the bullet because I'm a BBW, and most things labeled 'oversized' really aren't. (All my plus-size peeps out there know the struggle.) However, this blanket/robe is different! Not only does it fit, I have plenty of room to spare. For the record, I'm 5'6 1/2 - the half matters, trust me - and 321 lbs. But it's a little long...which is to be expected, since it's made for somebody up 6'5. So what I did to prevent mine from dragging was tie the belt underneath the pocket every time I need to leave my room, as seen in the picture. (Yes, I can still use the pocket during this time) That way, I don't have to sacrifice the extra room in favor of a shorter length. I also like how the sherpa is inside the hood as well. Between it and the elastic cuffs at the wrist, I could practically live in this blanket/robe! I also purchased this in the adult size, but in dream blue. Again, I was nervous because I didn't know if it would fit me or not. Kinda felt like I was pushing my luck there. Fortunately, my fears were unfounded. Not only does it fit as well, I have a bit of room to spare. (See the last picture if you wanna compare the two sizes.) It's not as long as the oversized version, though. The adult size stops about halfway down past my knees, whereas the oversized can pool around my feet. It's not quite as roomy on me as the oversized one is either, but I bought it to walk around outside in, so that's a good thing. More room = more air getting inside to make me cold. As of the date of this review, however, the slit no longer has the ability to snap closed on either of these robes. That was a bit of a bummer. But everything else is perfect, including the purple and blue being true to color. If you're on the fence about this blanket/robe, just do it! You'll be glad you did.
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Reviewed in the United States on November 5, 2024
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Verified Purchase
Tiffany Zahn
Pawtucket, US
★★★★★ 5
Fire resistant saved my life!
Size: Oversize, Style: Solid, Color: Grey
Saved my life! I love this snuggie. I'm 5'6" and the oversized drags when I walk. Its my outdoor fireplace blanket. Went to a neighbors last night and the fire tipped over towards me. Hot ash landed on my snuggie. After a stop drop and roll, the only thing damaged was my snuggie. Yes, I need to order another, but the material did great with fire. On a normal night, it's warm and cozy and keeps me warm on chilly outdoor nights.
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Reviewed in the United States on May 25, 2026
T
Verified Purchase
Tracy
Birmingham, US
★★★★★ 5
Luxury at its finest. Must have. You will not be disappointed!
Size: Twin(60" x 80"), Color: Tie-dye Coffee
This blanket is a must have! I purchased several to compare and decide which one was going to make the cut. There was absolutely no competition. This is the softest, most luxurious, coziest and authentic looking blanket. I told my sweetheart THIS is the cozy time blanket! Luxury at its finest! I have real vintage for jackets that are extremely luxurious and this rivals them with a clear conscience!Absolutely stunning and extremely high class feeling and appearing. Also semi-heavy and very warm . Upgrade to any space
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Reviewed in the United States on May 20, 2026
K
Verified Purchase
Kimberly D Paige
West Palm Beach, US
★★★★★ 5
Great blanket
Size: Twin(60" x 80"), Color: Tie-dye Coffee
Luxurious look. It’s a soft faux fur on the top, with a beautiful and subtle variegated pattern that adds to the lifelike appearance. The inside of the blanket has a velvet feel and creates a cozy vibe. The blanket is a great size. It is well made with quality material with just the right amount of weight to help me relax and fall asleep.
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Reviewed in the United States on May 20, 2026
G
Verified Purchase
Gladys White
Louisville, US
★★★★★ 5
Love it so much I got a second one
Size: Throw(51" x 63"), Color: Navy Blue, Size: Throw(51" x 63"), Color: Navy Blue
This blanket is perfect for snuggling. The throw size is perfect for napping or relaxing. It’s unbelievably soft. Faux rabbit fur is how I’d describe it. The color is perfect and consistent. It’s got great weight to it. It definitely has the power of nap inducement. My kids keep trying to steal it when they watch movies with me so I got a second because I’m not sharing! I’d get it in king size if they made it that big. Quality is amazing. It’s basically double layered with the top being the fluffy, bubble side and the other is a smooth yet still soft underside. It’s worth every penny and if you see it on a deal - DO NOT WAIT! Pull it out of the box and prepare to luxuriate beneath this deliciously soft and warm blanket. You DO need it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2026

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