Cudy Single Mode 1.25G LC Bi-Directional SFP 20km
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:
  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: 40027033501

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Amazon Customer
Cuba, US
★★★★★ 5
The Ultimate Solution for Power Chewers!
Flavor Name: Beef, Size: Medium
I have a Pitbull mix who can usually destroy "tough" toys in minutes, but the Bam-Bones Plus is a total game-changer. The bamboo and nylon blend is incredibly dense; it satisfies that natural urge to chew without splintering like real wood or falling apart like rubber. It wears down slowly and safely, giving my dog weeks of use rather than minutes. ​Smart, Functional Design ​The T-bone shape is brilliant because of the "paw-grip" base—it makes it so easy for my dog to hold it steady while she works on it. I’ve also noticed her teeth looking much cleaner since we started using this, as the raised textures act like a natural toothbrush. Plus, the infused beef scent keeps her interested much longer than a plain nylon bone ever could. ​Final Verdict ​This is a must-have for any owner of a large or aggressive chewer. It’s safe, long-lasting, and provides excellent mental stimulation.
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Reviewed in the United States on April 16, 2026
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Lisa D.
Massapequa, US
★★★★★ 4
Fantastic Durable Chew Toy That My Dog Loves!
Flavor Name: Beef, Size: Medium
Absolutely thrilled with this dog chew toy! It’s extremely tough and durable — perfect for aggressive chewers and keeps my pup entertained for a long time. The bamboo fiber and nylon design feels sturdy yet gentle on the teeth, and it even helps with dental hygiene by massaging gums while he chews. My dog goes crazy for this bone and it lasts way longer than other chew toys we’ve tried. Great quality and great value — highly recommend for any dog
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Reviewed in the United States on January 17, 2026
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Angie F.
Houston, US
★★★★★ 5
Great stimulation for active chewers!
Flavor Name: Peanut Butter, Size: Large, Flavor Name: Peanut Butter, Size: Large
"Long lasting chews" never make it past 5 minutes in mouth of my Golden Retriever, but this one will! He immediately started chewing on it and barely made a dent. Love that this product is safe, clean, and enjoyable for my boy. Highly recommend!
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Reviewed in the United States on May 30, 2026
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Amazon Customer
Grantham, US
★★★★★ 5
100% Puppy-Approved
Flavor Name: Beef, Size: Small
My little fur baby absolutely LOVES this!! ❤️ He immediately got the zoomies when I gave it to him. 🤣 It's his new favorite chew toy and keeps him occupied for long spans of time while inside or outside of his crate. Very durable, smells pleasant, and is the perfect size for my small puppy (he is currently 10 lbs and I got him the small one). Previous chew toys that I purchased were too large/heavy for him to pick up, but this one is lightweight and perfect! I highly recommend! 🙌🏾
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Lisa P T
Draper, US
★★★★★ 5
Not destuctable
Flavor Name: Peanut Butter, Size: Medium
This is the first toy that none of my dogs have destroyed. It's still going strong and they love carrying it around and gnawing on it every day. The material is durable and the product is the perfect size. I will buy more soon.
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Reviewed in the United States on May 21, 2026

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