1G BiDi Single-Mode SFP Module (20-Pack)
1.25 Gbps3km Single-Mode10 Matched Pairs
The Ubiquiti UACC-OM-SM-1G-S-20 is a 20-unit kit of 1G BiDi single-mode SFP modules, supplying 10 matched pairs for bidirectional Gigabit links over a single fiber strand instead of two. Each pair uses wavelength-division multiplexing (WDM) — one module transmits at 1310nm/receives at 1550nm, its partner does the reverse — halving the fiber strands needed versus standard duplex SFPs. Ideal for stocking multiple point-to-point links or larger fiber deployments. Typically in stock with fast delivery across Cyprus.
Compatibility note: BiDi modules must be paired correctly — one module of each wavelength combination goes at either end of the same fiber strand. Mixing two identical-wavelength modules on one link will not work; this kit's 20 modules form 10 correctly matched pairs.
Best For
✓ Multiple point-to-point Gigabit fiber links
✓ Saving fiber strands via single-strand WDM
✓ ISPs and integrators stocking bulk modules
✓ Building-to-building or long single-mode runs
✓ UniFi and third-party SFP-equipped switches
✓ Reducing simplex fiber cabling costs
Key Features
10 Matched BiDi Pairs
20 modules ship as 10 correctly matched transmit/receive pairs, ready to deploy across multiple links.
Single-Strand Fiber Savings
WDM BiDi technology carries both directions on one fiber strand, halving simplex fiber requirements per link.
3km Single-Mode Reach
Rated for up to 3km over single-mode fiber with LC simplex connectors at 1.25 Gbps.
Technical Specifications
| Identification |
| Part Number |
UACC-OM-SM-1G-S-20 |
| EAN / GTIN |
0810010076991 |
| Optical |
| Data Rate |
1.25 Gbps |
| Wavelengths |
1310nm / 1550nm (BiDi pair) |
| Distance |
Up to 3km single-mode |
| Connector |
LC simplex |
| Package |
| Contents |
20 modules = 10 matched pairs |
| Power Consumption |
0.66W per module |
Frequently Asked Questions
How many fiber links does this kit cover?
10 links — the 20 modules are supplied as 10 correctly matched transmit/receive pairs, one pair per single-strand link.
Can I mix modules from different pairs?
Each pair must go together on the same fiber strand since each module has a different wavelength combination; keep pairs matched as shipped.
What connector and fiber type does this use?
LC simplex connectors over single-mode fiber, up to 3km.
Singular Expert Insight
Buying this 20-unit kit is more economical than individual BiDi pairs if you're deploying multiple single-strand fiber links at once — just keep each matched pair together per link.
Buyer's Guide
Buy it if: you need multiple single-strand fiber links and want to save on fiber cabling costs.
Skip it if: you only need one link — a single BiDi pair or standard duplex SFP set may suffice.
Also consider: UACC-OM-SM-10G-S-2 for 10G single-strand links instead of 1G.