TL-SM221B - Adapter / Network Card TP-LINK - Free user manual and instructions
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| Product Type | SFP+ Transceiver Module (10G Network Adapter) |
| Brand | TP-Link |
| Model | TL-SM221B |
| Form Factor | Hot-pluggable SFP+ (Mini-GBIC) |
| Interface | 1 x SFP+ slot, LC duplex connector |
| Data Rate | 10 Gbps |
| Wavelength | 850 nm |
| Standard | IEEE 802.3ae, 10GBASE-SR |
| Maximum Distance | 300 m over OM3 multimode fiber |
| Optical Power | TX: -7.3 to -1 dBm, RX: -11.1 dBm sensitivity |
| Power Consumption | Less than 1.5 W |
| Power Supply | Powered by host device (3.3 V) |
| Operating Temperature | 0°C to 70°C (32°F to 158°F) |
| Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
| Dimensions | Approximately 57 x 13 x 8 mm |
| Weight | Approximately 20 g |
| Compatibility | TP-Link switches and routers with SFP+ port |
| Maintenance | Clean optical ports with dry cloth; keep dust caps on |
| Safety | Class 1 laser product |
| Spare Parts & Repair | No user-serviceable parts; replace module if faulty |
Frequently Asked Questions - TL-SM221B TP-LINK
What is the TP-Link TL-SM221B?
The TP-Link TL-SM221B is a 10G SFP+ transceiver designed for high-speed network connections over multimode fiber. It converts electrical signals to optical signals and vice versa, enabling 10G Ethernet links in compatible switches and network cards.
What are the main features of this SFP+ module?
Key features include a data rate of 10 Gbps, 850 nm wavelength for short-range transmission, hot-pluggable SFP+ form factor, and support for OM3 multimode fiber up to 300 meters. It also offers low power consumption (<1.5 W) and compact size.
What type of fiber cable is required?
This module requires multimode fiber cable with a standard LC duplex connector. For optimal performance, use OM3 or higher grade multimode fiber, which can support 10G speeds over distances up to 300 meters.
Can I use this module with any TP-Link switch?
The TL-SM221B is compatible with TP-Link devices that have a 10G SFP+ slot, such as T1700X-16TS, T1700X-8TS, and other managed/unmanaged switches with SFP+ ports. It may also work with third-party SFP+ slots if they meet IEEE 802.3ae standards.
How far can the signal travel?
The maximum transmission distance is 300 meters when using OM3 multimode fiber. With OM4 fiber, the distance can reach approximately 400 meters, but this is not officially specified for the TL-SM221B. It is not designed for single-mode fiber or long-haul links.
Does it support hot-swapping?
Yes, the SFP+ module is hot-pluggable, meaning it can be inserted or removed from the port without powering off the device. This allows for convenient installation, replacement, or maintenance without disrupting network operations.
How do I clean and maintain the module?
To maintain optimal performance, keep the optical ports clean and free of dust. Use a dry, lint-free cloth or a specialized fiber optic cleaning tool to gently wipe the connectors. Always replace the dust caps when the module is not in use to prevent contamination.
Is the module safe to handle?
Yes, the TL-SM221B is classified as a Class 1 laser product, which is safe under normal operating conditions. However, avoid looking directly into the optical ports or pointing them at eyes, as the laser beam can be harmful. Always follow standard safety precautions.
Can I use it for 10G Ethernet connections?
Absolutely, the TL-SM221B is specifically designed for 10G Ethernet (10GBASE-SR) connections. It provides a reliable, high-bandwidth link for data centers, enterprise networks, and storage systems, supporting both switching and routing applications.
What should I do if the module is not working?
First, verify the module is firmly seated in the SFP+ slot and the fiber cables are properly connected. Check that the port configuration matches 10G speed and that the fiber type is correct. If issues persist, try the module in another slot or device. If it still fails, the module may be defective and should be replaced, as it contains no user-serviceable parts.
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USER MANUAL TL-SM221B TP-LINK
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Product information
Brand : TP-LINK
Model : TL-SM221B
Category : Adapter / Network Card