SKU: 19615394280

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

Sale price$116.55 Regular price$129.50
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Ships within 48 hours · Estimated delivery Sep 10 - Sep 15

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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: 19615394280

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Marc
Houston, US
★★★★★ 5
These sisal soap saver bags are an excellent value and very well-made.
They feel sturdy yet remain pleasantly soft on the skin during use. Keep in mind that they do arrive with a very strong natural grass smell right out of the package. I highly recommend washing them in a water and vinegar solution, then letting them air or sun dry before your first use. Once the smell is gone, they are absolutely perfect!
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Reviewed in the United States on May 19, 2026
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Joan K. Bontrager
Natrona Heights, US
★★★★★ 3
I prefer a thinner bag for soap. They are too thick for me.
Not what I thought they would be
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Reviewed in the United States on May 16, 2026
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Joshua
Pawtucket, US
★★★★★ 5
The SCRUB
Color: 2 Pack
Perfect amount of abrasion for a mans skin. Gets all the dead skin off, without leaving red marks. it does eat your soap faster, but that just means you're cleaner or something, right? Anyway, great product, came as expected, didn't fall apart yet after a month of use. Very easy to use just throw your soap bar in there, and leave it in a wire basket to dry off after your shower.
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Reviewed in the United States on May 26, 2026
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Cynthia L Dudley
Boise, US
★★★★★ 5
Smooth Skin
Color: 2 Pack
Very happy with these soap bags. Once it's wet it puffs up quite a bit which makes it easy to handle as your larger your skin. My skin feels so smooth, especially my feet...feels as if I'd just had a pedicure.
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Reviewed in the United States on May 9, 2026
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Aryn
Waukegan, US
★★★★★ 5
Scrub excellence
Color: 2 Pack
Love a good natural material, I feel like it's really maximizing use of my soap bar, and it's a scrubby and exfoliating feeling everytime that I shower. Definitely recommend.
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Reviewed in the United States on April 23, 2026

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