Specifications TP-Link TL-SM321B
| Features | Specifications |
|---|---|
| Product Type | 1000Base-BX WDM Bi-Directional SFP Module |
| Model | TL-SM321B |
| Standards and Protocols | IEEE 802.3z, TCP/IP |
| Data Rate | 1.25 Gbps |
| Fiber Type | 9/125 μm Single-Mode Fiber |
| Fiber Technology | WDM Bi-Directional, Single Fiber |
| Port Type | LC Simplex / LC-UPC |
| Transmission Wavelength | TX: 1310 nm RX: 1550 nm |
| Maximum Transmission Distance | Up to 20 km (Version 3.2) |
| Digital Diagnostic Monitoring | Supported (DDM) |
| SFP Standard | SFP-MSA |
| Hot-Swappable | Supported |
| Power Supply | 3.3V |
| Fiber Cable | Single-Mode Fiber |
| Dimensions (W × D × H) | 55.4 × 14.6 × 12.9 mm |
| Operating Temperature | 0°C to 70°C |
| Storage Temperature | -40°C to 85°C |
| Operating Humidity | 10–90% RH, Non-condensing |
| Storage Humidity | 5–90% RH, Non-condensing |
| Safety and Emission | FCC and CE |
| Compatible Module | TP-Link TL-SM321A |
Important: The TL-SM321B must be paired with the TL-SM321A, which uses TX 1550 nm and RX 1310 nm. Transmission distance and specifications may vary by hardware version.
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