Cudy
Cudy Single Mode 1.25G LC Bi-Directional SFP 20km
No VAT added at checkout.
Save R 7.77 (3%) when you pay by EFT bank transfer. Choose Bank deposit at checkout and we'll apply the saving after you order.
Delivery in 2–5 business days · R 150 delivery, free from R 2,500 Order by 13:00 on a business day for the earliest dates
- Registered SA company (Reg. 2025/494434/07)
- Brand-new stock from established SA distributors
- Secure checkout
Ways to pay
Pay in interest-free instalments
- Stitch Pay LaterMonthly, first payment at checkout. Choose it at checkout.2 × R 129.50
- PayflexEvery 2 weeks, first payment at checkout. Choose Payfast at checkout, then Payflex.2 × R 129.50
- Stitch Pay LaterMonthly, first payment at checkout. Choose it at checkout.3 × R 86.33
- PayflexEvery 2 weeks, first payment at checkout. Choose Payfast at checkout, then Payflex.3 × R 86.33
- Stitch Pay LaterMonthly, first payment at checkout. Choose it at checkout.4 × R 64.75
- PayflexEvery 2 weeks, first payment at checkout. Choose Payfast at checkout, then Payflex.4 × R 64.75
- Stitch Pay LaterMonthly, first payment at checkout. Choose it at checkout.6 × R 43.16
Instalments are interest-free if you pay on time and are subject to the provider's approval and terms. Any delivery fee is added at checkout. The last instalment may differ by a few cents.
- R 150 deliveryFree on orders of R 2,500 or more
- 2–5 business daysDelivery, nationwide
- 24 months warrantyIncluded with this product
- 7-day returnsChange of mind. Refund policy
Overview
About this product
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
Good to know
Shipping, warranty and common questions
Shipping
Delivery is free on orders of R2,500 or more. Below R2,500 a R150 delivery fee applies, shown at checkout before you pay.
Orders are processed within 1–2 business days after payment confirmation.
Orders are only processed once funds have cleared in the Vorax bank account.
Once your order is shipped, you will receive an email notification with your tracking details.
Warranty & refunds
Where a product's warranty is listed on its page, that is the warranty you get. Products without a listed warranty carry a minimum 6-month warranty from the date of purchase, and a longer manufacturer warranty might apply.
Shipping for approved replacements or repairs is covered by us.
Unwanted products (change of mind) must be returned within 7 calendar days of delivery, unused, in original packaging and suitable for resale.
All returned items are subject to inspection before a refund is approved.
How long does order processing take?
We process all orders within 1–2 business days once payment has cleared. You will receive an email confirmation once your order is on its way.
How long does delivery take?
Once dispatched, delivery takes 1–3 business days depending on your location. Including processing, total delivery time is 2–5 business days from the date you order.
Do you ship everywhere in South Africa?
Yes, we offer nationwide shipping. Certain high-risk or no-go areas may experience delays, and we will contact you if this applies to your address.
What payment methods do you accept?
We accept Visa and Mastercard cards, interest-free instalments with Stitch Pay Later (subject to approval), Instant EFT, Zapper, Mobicred and direct bank transfer (EFT). The options available for your order are shown at checkout. Orders are only processed once payment has cleared.
Pay by direct bank transfer and save 3%: choose Bank deposit at checkout. Checkout shows the full price; once your order is placed we apply the 3% and email your reduced total within 1 business day. Pay that amount, using your order number as the reference. If you have already paid the full amount, we refund the 3% to you. The saving does not apply to Instant EFT or other payment methods.
What if the item I want is out of stock?
Items marked out of stock cannot be purchased directly on the website. You are welcome to contact us and we may be able to arrange a manual backorder, subject to supplier availability.
Manual backorders are processed only after full payment via EFT or secure payment link, and lead times vary depending on supplier stock.
Can I track my order?
Yes. Once your order is shipped you will receive a tracking number by email so you can monitor delivery.
