Introduction

High-Speed Network Transmission for Business Environments
D-Link’s new line of Small Form-Factor Pluggables (SFPs) transceivers give you an industry-leading combination of performance and affordability. The DEM-311GT is a high-performance 850 nm multi-mode SFP transceiver supporting Gigabit speeds on multi-mode fiber for distances of up to 550 m. The unit features a metal housing to reduce EMI and to increase durability.

Hot Pluggable
All D-Link transceivers are hot pluggable. You can connect a transceiver while the system is powered on without causing any issues, and easily swap one for another without having to reboot the switch each time. This permits modules to be added or removed without interrupting the network, facilitating maintenance and greatly reducing downtime.

Multiple Applications
Applications of the DEM-300 Series fiber transceivers include distributed multi-processing, Gigabit switch cascading, high-speed I/O file transfer, bus extension application, and channel extender/data storage. This versatility is invaluable for an expanding network, and helps the infrastructure grow with the business.

Small Form Pluggable (SFP) Package
The Gigabit SFP Transceivers use the Small Form-factor Pluggable (SFP) design. They provide the necessary signal amplification for data to be transmitted to the network cable from the port, and vice versa. The SFP form factor is advantageous because it is smaller than other form factors such as Xenpak, X2, and 10G XFP, ensuring lower costs, lower power disruption, and higher port density.

Performance

SFP transceiver type

Fiber optic

Maximum data transfer rate

1000 Mbit/s

Interface type

SFP

Multi-mode fiber (MMF) supported

Yes

Fiber optic connector

LC

Fiber cable diameters supported (core/cladding)

50/125,62.5/125 µm

Maximum transfer distance

550 m

Wavelength

850 nm

Tx power (min)

-4 dBmW

Tx power (max)

-17 dBmW

Rx power (max)

-3 dBmW

Link budget

13 dB

Networking standards

IEEE 802.3z

Fiber ethernet cabling technology

1000BASE-SX

Features

Product colour

Black, Stainless steel

Hot-Plug support

Yes

Certification

FCC Class B, ICES-003 Class B, CE Class B, VCCI Class B, FDA/CDRH, TUV, cUL

Power

Input voltage

3.3 V

Maximum current

0.24 A

Operational conditions

Maximum operating temperature

70 °C

Operating temperature (T-T)

0 - 70 °C

Storage temperature (T-T)

-40 - 85 °C

Operating relative humidity (H-H)

10 - 90%

Storage relative humidity (H-H)

5 - 90%

Weight & dimensions

Width

13.4 mm

Depth

56.4 mm

Height

10.3 mm

Weight

15.5 g

Packaging data

Number of products included

10 pc(s)

Technical details

Sustainability compliance

Yes

Sustainability certificates

RoHS

Other features

RX sensitivity

-17 dB