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Product specifications

TP-Link ISM311LM network transceiver module Fiber optic 1.25 Mbit/s SFP 850 nm

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ISM311LM 1000Base-SX MMF Industrial SFP Module

Part ISM311LM · UPC 840460600880

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  • Multi-mode SFP LC Transceiver
  • Supports Digital Diagnostic Monitoring (DDM)
  • Compatible with Small Form Pluggable Multi-Source Agreement (SFP-MSA)
  • Hot-Pluggable with maximum flexibility
  • Industrial Product Operating Temperature Range: -40-85°C

About this product

ISM311LM is an industrial SFP Module introduced for extending transfer distance. Attached to our industrial switches, ISM311LM can extend the distance to 550m. Users can choose whether and which items to use the fiber modules according to the demand in order to lower cost.

Performance

SFP transceiver type
Fiber optic
Maximum data transfer rate
1.25 Mbit/s
Interface type
SFP
Multi-mode fiber (MMF) supported
Yes
Fiber optic connector
LC (UPC)
Fiber cable diameters supported (core/cladding)
50/125,62.5/125 µm
Maximum transfer distance
550 m
Wavelength
850 nm
Ethernet interface type
1.25 Gigabit Ethernet
Networking standards
IEEE 802.3z

Features

Product colour
Grey
Hot-swap
Yes

Power

Input voltage
3.3 V

Certificates

Certification
FCC, CE

Operational conditions

Minimum operating temperature
-40 °C
Maximum operating temperature
85 °C
Storage temperature (T-T)
-40 - 85 °C
Operating relative humidity (H-H)
5 - 85%
Storage relative humidity (H-H)
5 - 85%

Weight & dimensions

Width
56.4 mm
Depth
13.4 mm
Height
11 mm

Packaging content

Quantity per pack
1 pc(s)

Specifications and images: Database Right data-sheet 2026 Icecat. All rights reserved. Supplied as is, without warranty. Specs Icecat · Open Content License

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