| Weight & dimensions | |
| Height | 11 mm |
| Width | 56.4 mm |
| Depth | 13.4 mm |
| Energy management | |
| Input voltage | 3.3 V |
| Operational conditions | |
| Operating relative humidity (H-H) | 5 - 85% |
| Storage temperature (T-T) | -40 - 85 °C |
| Storage relative humidity (H-H) | 5 - 85% |
| Maximum operating temperature | 85 °C |
| Minimum operating temperature | -40 °C |
| Certificates | |
| Certification | FCC, CE |
| Packaging content | |
| Quantity per pack | 1 pc(s) |
| Performance | |
| Interface type | SFP |
| Maximum data transfer rate | 1250 Mbit/s |
| Networking standards | IEEE 802.3z |
| Wavelength | 1310 nm |
| Ethernet interface type | 1.25 Gigabit Ethernet |
| Fiber optic connector | LC |
| Maximum transfer distance | 20000 m |
| Fiber cable diameters supported (core/cladding) | 9/125 µm |
| SFP transceiver type | Fiber optic |
| Single-mode fiber (SMF) supported | ![]() |
| Features | |
| Cable type | Fiber optic |
| Data transfer rate | 1.25 Gbit/s |
| Product colour | Grey |
| Maximum operating distance | 20000 m |
| Hot-swap | ![]() |
| Connector 1 | LC |
| Connector 2 | LC |
| EAN | 1210002601955 |
| Warranty | 2 years |
The TP-LINK ISM311LS 1000Base-LX Industrial Single-Mode Fibre SFP Module is a transceiver for Gigabit Ethernet links over single-mode optical fibre. Its 1000Base-LX rating and 1.25 Gbit/s data rate specify the supported link capability. The stated maximum operating distance is 20 km, a relevant limit when selecting a module for a fibre link. As an SFP transceiver, it provides an optical connection for compatible network equipment. It is intended for industrial and other installations where operating conditions may vary.
The module is rated to operate from −40 °C to 85 °C, which defines its supported temperature range. Its hot-swappable design allows installation or replacement in compatible equipment without switching off the device. Digital Diagnostic Monitoring (DDM) provides access to operating status and performance information. These features can help when maintaining links in temperature-challenging network locations. Compatibility with the host equipment should be checked before installation.
Key Features:- LC optical connector: connects to fibre cabling with an LC interface.
- Single-mode fibre: uses glass fibre as the transmission medium.
- IEEE 802.3z: listed networking standard.
- One module per pack: supplied as a single unit.
- Grey colour: identifies the module's listed colour.
Estimated delivery: 09.11
Today: 11:00 - 15:00
Estimated delivery: 09.11
Today: Closed
Estimated delivery: 09.11
Today: Closed
Estimated delivery: 09.11
Today: Closed
Estimated delivery: 09.11
Today: 10:00 - 14:00
Estimated delivery time: 09.11
Estimated delivery time: 09.11
Estimated delivery time: 10.11
Estimated delivery time: 10.11
Estimated delivery time: 10.11
Estimated delivery time: 09.11
Estimated delivery time: 09.11
Estimated delivery time: 10.11

