TP-Link Omada TL-SM321B 1000Base-BX SFP Module 1G 20km Single-mode Fibre Transceiver DDM Hot-swap
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About This Item
- 1000Base-BX standard enabling single strand fibre transmission
- Data transfer rates up to 1250 Mbit/s
- SFP interface compatible with single-mode fibre cables 9/125 µm
- Digital Diagnostics Monitoring DDM for real time network health
- Hot-swap capability for flexible network maintenance
- 3.3 V input voltage requirement
- Certified under FCC and CE standards
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TP-Link Omada TL-SM321B 1000Base-BX SFP Module 1G 20km Single-mode Fibre Transceiver DDM Hot-swap
We stock the TP-Link Omada TL-SM321B 1000Base-BX SFP Module 1G 20km Single-mode Fibre Transceiver DDM Hot-swap for network extensions. It suits IT professionals needing reliable long-distance links. It delivers stable 1G connections over 20km on single-strand fibre.
Core performance metrics
| Metric | Spec. |
|---|---|
| Maximum Transfer Distance | 20km |
| Data Rate | 1G (1250 Mbit/s) |
| Fibre Type | Single-mode (9/125 µm) |
| Wavelength | 1310nm Tx / 1550nm Rx |
| Diagnostics | DDM Supported |
| Hot-swap | Yes |
Extend links over 20km
This module supports distances up to 20,000 metres. You avoid repeaters for typical campus links. It uses single-mode fibre effectively.
Monitor signal health digitally
Digital Diagnostics Monitoring is built in. We see temperature and optical levels easily. This helps maintain network stability proactively.
Swap units without downtime
Hot-swap capability lets you replace units live. You keep services running during maintenance. This reduces unplanned outages significantly.
In the box
- 1x Transceiver module
- User guide
Verify your setup
- Confirm your switch has an SFP slot.
- Confirm you use 9/125 µm single-mode fibre.
- Confirm paired wavelengths match the remote end.
Frequently Asked Questions
Q: How far does it reach?
A: It supports single-mode fibre up to 20km.
Q: Is it compatible with Omada?
A: Yes, it works with TP-Link Omada switches.
Q: Does it support DDM?
A: Yes, Digital Diagnostics Monitoring is enabled.
Q: Can I swap it while powered?
A: Yes, the module is hot-swap compatible.
Final recommendation
Choose this for reliable 1G uplinks. It fits well in enterprise networks. We trust the TP-Link Omada TL-SM321B 1000Base-BX SFP Module 1G 20km Single-mode Fibre Transceiver DDM Hot-swap for demanding environments.
| Performance | |
|---|---|
| SFP transceiver type | Fibre optic |
| Tx wavelength (max) | 1310 nm |
| Rx wavelength (max) | 1550 nm |
| Digital Diagnostics Monitoring (DDM) | Yes |
| Maximum transfer distance | 20000 m |
| Fibre cable diameters supported (core/cladding) | 9/125 µm |
| Maximum data transfer rate | 1250 Mbit/s |
| Interface type | SFP |
| Single-mode fibre (SMF) supported | Yes |
| Product colour | Silver |
| Hot-swap | Yes |
| Features | |
| Product colour | Silver |
| Hot-swap | Yes |
| Certification | FCC, CE |
| Power | |
| Input voltage | 3.3 V |
| Certificates | |
| Certification | FCC, CE |
| Operational conditions | |
| Operating temperature (T-T) | 0 - 70 °C |
| Storage temperature (T-T) | -40 - 85 °C |
| Operating relative humidity (H-H) | 10 - 90% |
| Storage relative humidity (H-H) | 5 - 90% |
| Minimum operating temperature | 0 °C |
| Maximum operating temperature | 70 °C |
| Network | |
| SFP transceiver type | Fibre optic |
| Maximum data transfer rate | 1250 Mbit/s |
| Interface type | SFP |
| Weight & dimensions | |
| Width | 55.4 mm |
| Depth | 14.6 mm |
| Height | 12.9 mm |
| Packaging content | |
| Quantity per pack | 1 pc(s) |
| User guide | Yes |
| Technical details | |
| Hot-swap | Yes |
| Maximum transfer distance | 20000 m |
| Fibre cable diameters supported (core/cladding) | 9/125 µm |
| Packaging data | |
| User guide | Yes |
| Logistics data | |
| Quantity per pack | 1 pc(s) |
| Identifiers | |
| Additional EANs | 1210002619271 |
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