# Fiber Optic Transceiver CBO GSLC20-BiDi-B-DDM 1.25Gbps 1310nm/1550nm

**URL:** https://aio.lv/en/product--blueoptics-gslc20-bidi-b-ddm-bo--4465163
**Data updated:** 2026-02-25 16:30 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** GSLC20-BiDi-B-DDM-BO
**EAN:** 4063232002989
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 57.49 €
**Prices and availability valid until:** 2026-08-06 23:59
**Price without VAT (21%):** 47.51 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-gslc20-bidi-b-ddm-bo--4465163

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 04.08.2026 | free |
| Pickup points | 07.08.2026 | 1.89 EUR |
| Courier delivery to door | 07.08.2026 | 4.99 EUR |

## Summary description

CBO GSLC20-BiDi-B-DDM is a fiber optic SFP transceiver supporting 1.25Gbps bidirectional transmission over a single fiber using 1310nm/1550nm wavelengths. Designed for link connectivity in access networks, metro and enterprise applications, it features DDM (Digital Diagnostics Monitoring) for real-time status and fault detection. Use for upgrades or replacements in compatible SFP ports to enable single-fiber duplex links and simplify cabling.

## Long description

The Fiber Optic Transceiver CBO GSLC20-BiDi-B-DDM 1.25Gbps 1310nm/1550nm is a single-fiber bidirectional SFP module designed for 1.25 Gbps links. It transmits and receives over one optical fiber using two different wavelengths (1310 nm and 1550 nm) to provide duplex communication without the need for paired fibers. The module supports Digital Diagnostics Monitoring (DDM) to report real-time parameters such as optical power, temperature, and supply voltage, making it suitable for monitoring and fault detection in access networks, metro rings and enterprise links.
Advantages
The transceiver reduces cabling complexity by enabling bidirectional transmission on a single fiber, saving fiber infrastructure and installation effort. Its compact SFP form factor allows easy hot-plug replacement in compatible ports and supports standard 1.25 Gbps Ethernet/SONET/SDH interfaces. Integrated DDM provides continuous diagnostics for proactive maintenance and quick fault isolation. The module is engineered for stable operation in typical telecom and datacom environments and is compatible with equipment that supports SFP single-fiber BiDi modules.
Suitable for
Upgrading or extending access network links where fiber count is limited
Establishing metro and campus duplex connections over a single fiber
Replacing failed SFP modules in compatible switches and optical transceivers
Point-to-point links between enterprise buildings or wiring closets
Key specifications
Data rate: 1.25 Gbps
Wavelengths: 1310 nm (Tx or Rx) and 1550 nm (Tx or Rx) for bidirectional operation on one fiber
Form factor: SFP (small form-factor pluggable)
Optical interface: single-mode fiber (single-fiber BiDi)
Digital Diagnostics Monitoring: supported (real-time monitoring of power, temperature and voltage)
Connector type: LC (single-fiber LC or suitable breakout)
How to use
Install the SFP transceiver into a compatible SFP port with the device powered on or off following the host equipment instructions for hot-plugging. Connect a single-mode single-fiber jumper with appropriate LC connectors; ensure correct orientation for the bidirectional link by pairing this 1310/1550 nm module with the complementary wavelength module at the remote end. Verify link status using the host device interface and consult DDM readouts to confirm optical power, temperature and voltage are within operational ranges.
Usage recommendations
For reliable operation, use patch cables and connectors rated for single-mode fiber, avoid tight bends or mechanical stress on the fiber, and pair BiDi modules with matching complementary wavelength modules. Monitor DDM values after installation to detect any attenuation or connector issues early. Follow equipment vendor compatibility lists to ensure the SFP is supported for automatic recognition and proper link negotiation.

## FAQ

### How much does the CBO GSLC20-BiDi-B-DDM Fiber Optic Transceiver 1.25Gbps cost, and is it available for purchase?

The price is 57.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 83 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 04.08.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All BlueOptics products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized BlueOptics service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/4465163/59853509_large.webp