# Fiber Optic Transceiver CBO GSLC20-BiDi-A-DDM 1.25G 1310/1550nm Single-Channel Bidirectional

**URL:** https://aio.lv/en/product--blueoptics-gslc20-bidi-a-ddm-bo--4465161
**Data updated:** 2026-02-25 16:30 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** BlueOptics
**Manufacturer code:** GSLC20-BiDi-A-DDM-BO
**EAN:** 4063232003399
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 47.99 €
**Prices and availability valid until:** 2026-08-02 23:59
**Price without VAT (21%):** 39.66 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-gslc20-bidi-a-ddm-bo--4465161

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.89 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

CBO GSLC20-BiDi-A-DDM is a fiber optic SFP transceiver supporting 1.25 Gbps data rate and bidirectional transmission on two wavelengths (1310 nm/1550 nm). Designed for single-channel long-reach links, it fits standard SFP slots and provides DDM (Digital Diagnostic Monitoring) for real-time module status. Suited for network equipment upgrades, fiber links between buildings, and ISP or enterprise access links where compact, hot-pluggable transceivers are required.

## Long description

The BlueOptics Fiber Optic Transceiver CBO GSLC20-BiDi-A-DDM 1.25G 1310/1550nm Single-Channel Bidirectional is a compact SFP module designed for single-channel bidirectional fiber links. It supports a 1.25 Gbps data rate and transmits and receives on two separate wavelengths (1310 nm and 1550 nm) over a single fiber, enabling long-reach connections while occupying a standard SFP slot. The module includes Digital Diagnostic Monitoring (DDM) to report real-time operating parameters such as temperature, optical power, and supply voltage.
Advantages
This transceiver provides bidirectional transmission over a single fiber, reducing cabling requirements and installation complexity for point-to-point links. Its SFP form factor offers hot-pluggable convenience and compatibility with a wide range of switches and routers that accept standard SFP modules. Integrated DDM enables proactive monitoring of module health and link performance, useful for maintenance and troubleshooting. The module is suitable for long-reach single-channel applications while maintaining a compact footprint.
Suitable for
 Point-to-point fiber links between buildings or remote sites
 ISP access links and enterprise uplinks requiring single-fiber BiDi transmission
 Upgrading or expanding network equipment with standard SFP slots
 Fiber infrastructure where reduced cable count is desired
Key specifications
 Data rate: 1.25 Gbps
 Wavelengths: 1310 nm / 1550 nm (bidirectional on single fiber)
 Form factor: SFP (hot-pluggable)
 Reach: designed for long-reach single-channel links (typical distances depend on fiber type and link budget)
 Monitoring: Digital Diagnostic Monitoring (DDM) for temperature, optical power, and voltage
 Connector type: compatible with standard single-fiber connectors (LC-style single-fiber adapters typical for BiDi modules)
 Power consumption: low-power SFP class module (specific consumption depends on host device implementation)
How to use
Install the module into an available SFP slot on compatible network equipment while the host device is powered on or off, as the SFP form factor supports hot-plugging. Connect the single fiber using the appropriate single-fiber LC adapter or patch cord, observing the correct orientation for transmit and receive wavelengths as required by the link (one end transmitting on 1310 nm and receiving on 1550 nm, the other end reversed). Verify link status and use the DDM readouts via the host device management interface to monitor optical power levels, temperature, and supply voltage.
Usage recommendations
Use clean connectors and follow standard fiber handling procedures to avoid signal loss. Match the module wavelength orientation between link endpoints and confirm compatibility with the host device firmware. Monitor DDM parameters after installation to ensure the link operates within expected margins and perform periodic inspections of fiber connections.

## FAQ

### How much does the CBO GSLC20-BiDi-A-DDM 1.25G SFP 1310/1550nm cost, and is it available for purchase?

The price is 47.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 92 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 03.08.2026 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/4465161/66005323_large.webp