Dlink DEM-311GT SFP 1000Base-SX Multi-mode Fibre
D-Link’s new line of Gigabit Interface Converters (GBICs) and Small Form-Factor Pluggables (SFPs) transceivers represent an industry leading combination of performance and affordability.
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Dlink DEM-311GT SFP 1000Base-SX Multi-mode Fibre
- 850nm Multi-Mode Tranceiver
- 550m Max Distance, Duplex LC Connector
D-Link’s new line of Gigabit Interface Converters (GBICs) and Small Form-Factor Pluggables (SFPs) transceivers represent an industry leading combination of performance and affordability.
D-Link’s new Gigabit transceivers are available in two form-factors: standard (GBIC) or (SFP)/mini-GBIC.

The DEM-311GT is a high performance 850nm multimode SFP/mini-GBIC transceiver. Supporting full duplex, Gigabit speeds on multimode fiber for distances of up to 220m/550m on 62.5µm/50µm fiber respectively.
The unit features a metal housing to reduce EMI and to increase durability. The DEM-311GT is hot pluggable and is backed by a standard 2-year product warranty and free technical support.
Specs
Product/Performance Specifications
Optical Receiver Sensitivity
- -18dBm (max)
Interface Options
Connector Type
- LC
Operational Ranges
Support Voltage
- 3.1-3.5V
Max Voltage
- 6.0V
Max Current
- 300mA
Safety Certifications and Environmental Information
Class 1 Laser
- EN 60825-1
FDA 21
- 1040.10 & 1040.11
Physical Specifications
Dimensions (WxDxH)
- 13.8 x 57.2 x 8.5 mm
Warranty and Support Information
Warranty
- 2 Year Warranty
Support
- Free Technical Support
Ordering Information
Part Number Description
DEM-310GT 1000BASE-LX SFP Up to 10km
DEM-311GT 1000BASE-SX SFP Up to 220/550m
Multi-mode Fiber Transceiver (550 m) DEM-311GT – 1000BASE-SX port (IEEE 802.3z standard) – Duplex LC connector – Full duplex operation – 802.3x flow control support – Fiber type: 50um or 62.5um multi-mode fiber up to 550 m – Wave length: 850nm – Power support: 3.3V – Hot pluggable – Class 1 laser product complies with EN 60825-1 – TTL signal detect indicator – Metal enclosure for lower EMI
Key Features:
- IEEE: 1000BASE-SX
- D-Link 1-port SFP SX MM Fiber Transceiver-Up to 550m
- Wavelength: 850nm
- Form factor: Small Form-Factor Pluggable (SFPs)
- Speed: 1000 Mbps Ethernet
- Media type: Multimode fiber
Product information
Product Dimensions 0.46 x 1.17 x 2.22 inches Item Weight 0.635 ounces ASIN B000087LFF Item model number DEM-311GT National Stock Number 5998-01-579-0245 is Discontinued By Manufacturer No Date First Available January 9, 2003 Manufacturer D-Link Systems, Inc. Language English Country of Origin China
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