Wednesday, 28 October 2020 15:40

D-Link updates managed switch range


D-Link has launched a new range of managed Ethernet switches.

The D-Link DGS-1520 series is the successor to the DGS-1510 switches.

There are four models in the family: DGS-1520-28, DGS-1520-28MP, DGS-1520-52 and DGS-1520-52MP.

The numerical part of the suffix indicates the number of ports, while the MP models feature power over Ethernet with a 370W budget (expandable to 740W with the optional DPS-700 unit).

The -28 provides 24 1000Base-T, two 10GBase-T and two SFP+ ports. The -28MP features 20 PoE 1000Base-T, four PoE 2.5GBase-T, two 10GBase-T and 2 SFP+ ports.

Similarly, the -52 has 48 1000Base-T, two 10GBase-T and 2 SFP+ ports, while the -52MP provides 44 PoE 1000Base-T, four PoE 2.5GBase-T, two 10GBase-T and 2 SFP+ ports.

This makes them the first of D-Link's smart managed switches to support 10G Base-T for uplink and stacking.

The multi-Gigabit PoE ports are a convenient way to connect 802.11ac/ax access points, the company observed.

Zero-touch provisioning means there is no need for on-site IT personnel to install the switches as part of multi-site network deployments.

The range is available immediately.

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Now’s the Time for 400G Migration

The optical fibre community is anxiously awaiting the benefits that 400G capacity per wavelength will bring to existing and future fibre optic networks.

Nearly every business wants to leverage the latest in digital offerings to remain competitive in their respective markets and to provide support for fast and ever-increasing demands for data capacity. 400G is the answer.

Initial challenges are associated with supporting such project and upgrades to fulfil the promise of higher-capacity transport.

The foundation of optical networking infrastructure includes coherent optical transceivers and digital signal processing (DSP), mux/demux, ROADM, and optical amplifiers, all of which must be able to support 400G capacity.

With today’s proprietary power-hungry and high cost transceivers and DSP, how is migration to 400G networks going to be a viable option?

PacketLight's next-generation standardised solutions may be the answer. Click below to read the full article.


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Stephen Withers

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Stephen Withers is one of Australia¹s most experienced IT journalists, having begun his career in the days of 8-bit 'microcomputers'. He covers the gamut from gadgets to enterprise systems. In previous lives he has been an academic, a systems programmer, an IT support manager, and an online services manager. Stephen holds an honours degree in Management Sciences and a PhD in Industrial and Business Studies.

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