TL-SM311LS - Network switch TP-LINK - Free user manual and instructions
Find the device manual for free TL-SM311LS TP-LINK in PDF.
Pick your language and provide your email: we'll send you a specifically translated version.
| Product Type | Gigabit SFP Module |
| Brand | TP-Link |
| Model | TL-SM311LS |
| Form Factor | SFP (Small Form-factor Pluggable) |
| Connector Type | LC Duplex |
| Fiber Mode | Multi-mode |
| Data Rate | 1.25 Gbps (Gigabit Ethernet) |
| Maximum Distance | 550 m (at 1 Gbps) |
| Wavelength | 850 nm |
| Operating Temperature | 0°C to 70°C (32°F to 158°F) |
| Power Consumption | Typically < 1W (powered via host device) |
| Dimensions (W x D x H) | 2.76 x 0.87 x 0.55 inches (70 x 22 x 14 mm) |
| Weight | 0.04 lb (18 g) |
| Compliance | IEEE 802.3z, MSA compliant |
| Maintenance | Clean with lint-free cloth and isopropyl alcohol; store in anti-static bag |
| Safety Precautions | Avoid electrostatic discharge; do not look into fiber ports with active laser |
| Repairability | No user-serviceable parts; replace if defective |
| Warranty | Limited lifetime warranty (TP-Link) |
Frequently Asked Questions - TL-SM311LS TP-LINK
What is the TL-SM311LS used for?
The TP-Link TL-SM311LS is a Gigabit SFP module designed to connect network switches or routers to multi-mode fiber optic cabling, enabling high-speed data transmission up to 550 meters.
Is the TL-SM311LS compatible with any switch?
It is compatible with any switch or device that has a standard SFP slot and supports MSA (Multi-Source Agreement) compliant modules. Always check your device's compatibility list.
What type of fiber cable does it require?
It requires multi-mode fiber (typically 50/125 µm or 62.5/125 µm) with LC duplex connectors.
How do I install the TL-SM311LS?
Insert the module into an available SFP slot until it clicks. Connect the fiber cable to the LC ports. Ensure proper orientation and avoid bending the fiber too tightly.
Why is the link not establishing?
Check that the fiber cable is properly connected, the switch port is enabled and configured for the same speed/duplex, and the fiber is not damaged. Also verify that the remote device uses a compatible module (same wavelength and fiber type).
Can the TL-SM311LS be used with single-mode fiber?
No, this module is designed for multi-mode fiber only. Using single-mode fiber may result in high signal loss or no link. Use a single-mode SFP (like TL-SM311SS) for single-mode.
What is the maximum distance supported?
At 1 Gbps, the maximum distance is 550 meters over 50/125 µm multi-mode fiber. With 62.5/125 µm fiber, the distance may be limited to 220 meters.
Does the module require external power?
No, the module draws power directly from the host device via the SFP slot. Power consumption is typically less than 1 watt.
How should I clean the fiber connectors?
Use a lint-free cloth slightly moistened with isopropyl alcohol and gently wipe the end face of the connector. Avoid touching the end face with fingers. Use a fiber optic inspection scope if available.
Is the TL-SM311LS hot-swappable?
Yes, SFP modules are designed to be hot-swappable. However, it is recommended to disable the port before removal to avoid data errors or port damage.
User questions about TL-SM311LS TP-LINK
0 question about this device. Answer the ones you know or ask your own.
Ask a new question about this device
No questions yet. Be the first to ask one.
Download the instructions for your Network switch in PDF format for free! Find your manual TL-SM311LS - TP-LINK and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. TL-SM311LS by TP-LINK.