One Fiber, Double the Power: The Magic of BiDi SFP / SFP\+ Modules
Are you facing the challenge of expanding your Network, but your fiber optic infrastructure is already at full capacity? The Ubiquiti UACC-OM-SM-1G-S-20 is the answer. Instead of laying expensive and time-consuming new Cabling, these modules allow you to use your existing Cabling twice as efficiently. Bidirectional (BiDi) technology makes it possible to send and receive data over a single single-mode fiber. This is not only clever but also a massive relief for your budget and project planning.
Reduce Costs, Increase Efficiency: Your Network Upgrade
Every saved fiber means real money. With the UACC-OM-SM-1G-S-20, you halve the fiber requirement per connection. This not only reduces direct cable costs but also expenses for patch cables and port usage on your patch panels. These modules are an investment that quickly pays for itself, especially in larger environments. The extremely low power consumption of only 0.66 Watts per module also ensures lower operating costs and less heat generation in your Ethernet Switch.
Seamless Integration into Your Ubiquiti Ecosystem
As original Ubiquiti Accessories, these SFP / SFP\+ Modules are perfectly designed to work with the UniFi and EdgeMAX product families. Simply plug them into an available SFP-Port of your UniFi Switch or EdgeSwitch, connect the fiber, and the link is established – without complicated configuration or compatibility worries. You can rely on the modules to perform stably and reliably and to be seamlessly recognized in your management interface.
Important Planning Notes: How Pairing Works
BiDi technology requires a little planning. The modules always work in complementary pairs. This means that at one end of the link, you install a module with a blue latch (TX 1310nm / RX 1550nm), and at the other end, a module with a yellow latch (TX 1550nm / RX 1310nm). An incorrect combination will inevitably lead to a link failure. This 20-pack set contains 10 modules of each type, allowing you to build 10 complete, functional connections. Clean documentation of your infrastructure is key to success here.
Strengths & Notes at a Glance
- Pro: Doubles the capacity of existing fiber optic lines.
- Pro: Significant reduction in Total Cost of Ownership (TCO) by saving on Cabling and ports.
- Pro: Very low power consumption of only 0.66 W per module.
- Pro: Seamless Plug-and-Play integration with Ubiquiti UniFi and EdgeMAX devices.
- Note: Must be used as a complementary pair (blue/yellow) at both ends of the connection.
- Note: Ubiquiti does not publish official data on TX Power and RX Sensitivity, which complicates detailed link budget planning.
Specifications & Features
| Manufacturer: | Ubiquiti |
| Model: | UACC-OM-SM-1G-S-20 |
| EAN: | 0810354026041 |
| Product SKU: | UACC-OM-SM-1G-S-20 |
| Form Factor: | SFP (Small Form-factor Pluggable) |
| Technology: | Bidirectional (BiDi / WDM) |
| Data Rate (Nominal): | 1 Gbps / 1000 Mbit/s |
| Data Rate (Maximum): | 1.25 Gbit/s |
| Network Standard: | 1000Base-BiDi |
| Supported Medium: | Single-Mode Fiber (SMF) |
| Connector Type: | 1x Simplex LC (UPC) |
| Maximum Distance: | 3 km |
| Wavelengths Module 1 (Blue Latch): | TX: 1310 nm / RX: 1550 nm |
| Wavelengths Module 2 (Yellow Latch): | TX: 1550 nm / RX: 1310 nm |
| Chipset: | Semtec (according to compatible third-party modules) |
| Laser Type: | FP Laser (according to compatible third-party modules) |
| Receiver Type: | PIN Photodiode (according to compatible third-party modules) |
| TX Power (Transmit Power): | Not officially specified (typ. -14 to -6 dBm) |
| RX Sensitivity (Receive Sensitivity): | Not officially specified (typ. < -20 dBm) |
| Power Consumption (Maximum): | 0.66 W |
| Operating Temperature: | 0°C to 70°C |
| DDM / DOM Support: | Yes, Digital Diagnostics Monitoring is supported |
| Certificates & Compliance: | CLASS 1 LASER PRODUCT, NDAA Compliant, SFP MSA, RoHS |
| Compatibility: | Optimized for Ubiquiti devices, operating system independent |
| Encryption: | None (Layer-1 device) |
Scope of Delivery
| 1 x Ubiquiti UACC-OM-SM-1G-S-20 (Set with 20 modules / 10 pairs) |
Frequently Asked Questions (FAQ)
What does BiDi mean for this SFP module?
BiDi stands for 'Bidirectional'. It means that the module can send (TX) and receive (RX) data over a single fiber optic cable by using two different light wavelengths. A standard SFP module requires two separate fibers for this, making BiDi SFP / SFP\+ Modules an efficient solution for your Network.
Do the UACC-OM-SM-1G-S modules always have to be used in pairs?
Yes, this is absolutely necessary. A Ubiquiti Networks module with a blue latch (transmits at 1310 nm, receives at 1550 nm) must be connected at the other end to a module with a yellow latch (transmits at 1550 nm, receives at 1310 nm). This ensures proper communication between the SFP / SFP+ Modules.
Is this module compatible with devices from other manufacturers?
Although it is optimized for Ubiquiti Networks devices, it adheres to the SFP-MSA (Multi-Source Agreement) standard. Therefore, it should function in most SFP ports of other manufacturers that are not restricted to vendor-specific ('coded') transceivers. However, there is no guarantee for full compatibility with every UniFi Switch or other brand.
Can I establish a 10 Gbit/s connection with this module?
No. This SFP module is explicitly designed for a data rate of 1 Gbit/s (maximum 1.25 Gbit/s). For 10 Gbit/s connections, you need SFP+ Modules, such as the Ubiquiti UACC-OM-SM-10G-S.
What does the connector type 'Simplex LC' mean?
'Simplex' means that only a single fiber is connected, in contrast to 'Duplex', where two fibers (one for transmitting, one for receiving) are required. 'LC' is the name of the small, square connector type (Lucent Connector), commonly used with Cabling for SFP / SFP+ Modules.
Why is the maximum distance limited to 3 km?
The range of a fiber optic module is determined by the 'Link Budget' – the difference between the transmit power (TX Power) and the receive sensitivity (RX Sensitivity), minus the attenuation caused by Cabling, splices, and connectors. This SFP / SFP+ Module is designed for medium distances up to 3 km, suitable for many Network applications.
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