{"product_id":"d-link-dgs-1520-28mp","title":"D-Link DGS-1520-28MP 28-Port Multi-Gigabit PoE+ Layer 3 Stackable Switch","description":"\u003cdiv id=\"ace-d-link-dgs-1520-28mp-copy\"\u003e\n\u003cstyle\u003e\n#ace-d-link-dgs-1520-28mp-copy { font-family: inherit; color: inherit; }\n\/* Reuses the current ACE calculator FAQ disclosure treatment. Scope: this product FAQ only. *\/\n#ace-d-link-dgs-1520-28mp-copy .ace-article-faq { --ace-family-ink: #21352b; --ace-family-muted: #5b6961; --ace-family-line: #d3d9d5; --ace-family-soft: #f4f7f4; margin: 24px 0; padding: 0; background: transparent; font-family: inherit; }\n#ace-d-link-dgs-1520-28mp-copy .ace-article-faq details.ace-form-disclosure { margin: 0 0 12px; padding: 0; border: 1px solid var(--ace-family-line); border-radius: 12px; background: #fff; overflow: visible; }\n#ace-d-link-dgs-1520-28mp-copy .ace-article-faq details \u003e summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 56px; margin: 0; padding: 16px 20px; border-radius: 12px; background: var(--ace-family-soft); color: var(--ace-family-ink); font: inherit; font-size: 16px; font-weight: 600; line-height: 1.4; list-style: none; cursor: pointer; }\n#ace-d-link-dgs-1520-28mp-copy .ace-article-faq summary::-webkit-details-marker { display: none; }\n#ace-d-link-dgs-1520-28mp-copy .ace-article-faq summary::marker { content: ''; }\n#ace-d-link-dgs-1520-28mp-copy .ace-article-faq summary::before, #ace-d-link-dgs-1520-28mp-copy .ace-article-faq summary::after { content: none; }\n#ace-d-link-dgs-1520-28mp-copy .ace-article-faq details[open] \u003e summary { border-radius: 12px 12px 0 0; border-bottom: 0; }\n#ace-d-link-dgs-1520-28mp-copy .ace-article-faq h3.ace-form-title { display: flex; align-items: center; justify-content: space-between; gap: 16px; width: 100%; min-width: 0; margin: 0 !important; padding: 0; color: var(--ace-family-ink); font-family: inherit; font-size: 16px; font-weight: 600; line-height: 1.35; letter-spacing: normal; text-transform: none; }\n#ace-d-link-dgs-1520-28mp-copy .ace-article-faq .ace-form-title-text { display: flex; flex: 1 1 auto; min-width: 0; margin: 0; overflow-wrap: anywhere; }\n#ace-d-link-dgs-1520-28mp-copy .ace-article-faq .ace-form-toggle { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; margin: 0 0 0 auto; padding: 0; color: #55605a; font-size: 12px; line-height: 1.4; font-weight: 500; white-space: nowrap; }\n#ace-d-link-dgs-1520-28mp-copy .ace-article-faq details \u003e summary .ace-form-collapse { display: none; }\n#ace-d-link-dgs-1520-28mp-copy .ace-article-faq details[open] \u003e summary .ace-form-expand { display: none; }\n#ace-d-link-dgs-1520-28mp-copy .ace-article-faq details[open] \u003e summary .ace-form-collapse { display: inline; }\n#ace-d-link-dgs-1520-28mp-copy .ace-article-faq .ace-form-chevron { display: inline-block; width: 8px; height: 8px; margin: 0 2px 4px; border-bottom: 2px solid currentColor; border-right: 2px solid currentColor; transform: rotate(45deg); transition: transform .15s ease; }\n#ace-d-link-dgs-1520-28mp-copy .ace-article-faq details[open] \u003e summary .ace-form-chevron { transform: rotate(225deg); margin-bottom: 0; }\n#ace-d-link-dgs-1520-28mp-copy .ace-article-faq .ace-form-body { margin: 0; padding: 20px; min-width: 0; color: var(--ace-family-ink); font-size: 15px; line-height: 1.65; }\n#ace-d-link-dgs-1520-28mp-copy .ace-article-faq .ace-form-body \u003e p { margin: 0; line-height: 1.65; }\n#ace-d-link-dgs-1520-28mp-copy .ace-article-faq summary:focus-visible { outline: 3px solid #24731a; outline-offset: 3px; }\n@media (max-width: 640px) {\n  #ace-d-link-dgs-1520-28mp-copy .ace-article-faq details \u003e summary { padding: 14px 16px; gap: 12px; }\n  #ace-d-link-dgs-1520-28mp-copy .ace-article-faq h3.ace-form-title { gap: 12px; }\n  #ace-d-link-dgs-1520-28mp-copy .ace-article-faq .ace-form-body { padding: 16px; }\n  #ace-d-link-dgs-1520-28mp-copy .ace-article-faq .ace-form-toggle { font-size: 11px; gap: 8px; }\n}\n@media (prefers-reduced-motion: reduce) { #ace-d-link-dgs-1520-28mp-copy .ace-article-faq .ace-form-chevron { transition: none; } }\n\n\n#ace-d-link-dgs-1520-28mp-copy .ace-article-faq { width:100%; max-width:100%; box-sizing:border-box; }\n#ace-d-link-dgs-1520-28mp-copy .ace-article-faq .ace-form-body { border:0; box-shadow:none; }\n\u003c\/style\u003e\n\u003ch2\u003ePower Faster Access Devices with Room to Grow\u003c\/h2\u003e\n\u003cp\u003eThe D-Link DGS-1520-28MP combines 20 × gigabit rj45 poe+ and 4 × 2.5gbe rj45 poe+ access with two 10GBASE-T and 2 10G SFP+ uplinks. It brings switching, dynamic routing and physical stacking into a rackmount platform for business networks that need organised connectivity, clear traffic separation and practical room for expansion.\u003c\/p\u003e\n\u003cp\u003eA shared 370W PoE budget supplies compatible access points, IP cameras and other powered devices, with up to 30W per PoE port. VLANs, access controls and monitoring tools help keep day-to-day administration consistent. Choose the uplink optics, cables and any optional power equipment to suit the installation; published link rates describe interface capability rather than guaranteed application throughput.\u003c\/p\u003e\n\u003ch2\u003eHighlights\u003c\/h2\u003e\n\u003ch3\u003eConnectivity That Suits the Installation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e20 × Gigabit RJ45 PoE+ and 4 × 2.5GbE RJ45 PoE+\u003c\/li\u003e\n\u003cli\u003e2 × 10GBASE-T and 2 × 10G SFP+ uplinks\u003c\/li\u003e\n\u003cli\u003e370W shared PoE budget with IEEE 802.3af\/at support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eControl and Resilience\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIPv4\/IPv6 Layer 3 routing including OSPF and RIP\u003c\/li\u003e\n\u003cli\u003ePhysical stacking with ring or chain topology\u003c\/li\u003e\n\u003cli\u003eVLAN segmentation and eight traffic-priority queues\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdministration and Protection\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWeb interface and command-line administration\u003c\/li\u003e\n\u003cli\u003e802.1X authentication and DHCP snooping\u003c\/li\u003e\n\u003cli\u003e5-year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003ch3\u003eBuild Around the Right Access Ports\u003c\/h3\u003e\n\u003cp\u003e20 Gigabit copper ports and 4 2.5GbE ports connect the devices that support everyday work. The faster 2.5GbE access ports can serve suitable wireless access points or other multi-gigabit devices without treating every connection as a 10G link. Select cabling and endpoint interfaces for the intended speed.\u003c\/p\u003e\n\u003ch3\u003ePower Devices from a Planned Budget\u003c\/h3\u003e\n\u003cp\u003eIEEE 802.3af\/at PoE supports compatible powered devices with up to 30W per port, shared within the 370W system budget. Add the actual maximum demand of the connected devices and allow sensible operating headroom. The switch does not provide 60W or 90W IEEE 802.3bt power from its access ports.\u003c\/p\u003e\n\u003ch3\u003eGrow with a Co-ordinated Physical Stack\u003c\/h3\u003e\n\u003cp\u003eUp to eight switches in a physical ring or chain stack with up to 80 Gbps stacking bandwidth. Stacking uses the available 10G interfaces. A stack can simplify administration across multiple units and support a redundant ring design when correctly cabled. Physical stacking is different from virtual management, and the available forwarding and uplink design still need to match the workload.\u003c\/p\u003e\n\u003ch3\u003eRoute Between Network Segments\u003c\/h3\u003e\n\u003cp\u003eIPv4\/IPv6 routing supports static routes, RIP\/RIPng and OSPFv2\/v3, with policy-based routing and VRRP tools for a suitably designed network. Use these functions to organise traffic between departments, services or VLANs while keeping access policies deliberate. Route-table limits and the upstream firewall or gateway remain part of the overall design.\u003c\/p\u003e\n\u003ch3\u003eKeep Shared Services Organised\u003c\/h3\u003e\n\u003cp\u003eVLANs, link aggregation, spanning-tree protocols and Ethernet Ring Protection Switching help structure a resilient Layer 2 network. Eight QoS queues provide traffic-priority controls, while IGMP and MLD snooping help manage multicast distribution. The resulting performance depends on a sound topology and correctly configured endpoints.\u003c\/p\u003e\n\u003ch3\u003eMake Administration Easier to Maintain\u003c\/h3\u003e\n\u003cp\u003eWeb administration, serial CLI, SSH and SNMP provide several ways to manage the switch. Authentication, DHCP snooping, access-control lists and monitoring tools help support consistent operations. Dual images and configuration files provide useful options when planning controlled firmware changes.\u003c\/p\u003e\n\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eThe DGS-1520-28MP brings multi-gigabit PoE+ access, 10G uplinks and Layer 3 management together in a stackable business switch. Its value is in a balanced network design: suitable access links, deliberate segmentation, properly sized uplinks and a realistic PoE budget. Select compatible optics and any optional power equipment around the exact deployment.\u003c\/p\u003e\n\u003csection class=\"ace-article-faq\" aria-label=\"Frequently asked questions\"\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails class=\"ace-form-disclosure\" open\u003e\u003csummary\u003e\u003ch3 class=\"ace-form-title\"\u003e\n\u003cspan class=\"ace-form-title-text\"\u003eWhich Ports Provide 10-Gigabit Connections?\u003c\/span\u003e\u003cspan class=\"ace-form-toggle\" aria-hidden=\"true\"\u003e\u003cspan class=\"ace-form-expand\"\u003eExpand\u003c\/span\u003e\u003cspan class=\"ace-form-collapse\"\u003eCollapse\u003c\/span\u003e\u003cspan class=\"ace-form-chevron\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"ace-form-body\"\u003e\u003cp\u003eTwo 10GBASE-T ports and 2 SFP+ slots provide the 10G uplink interfaces. The 24 access ports are 20 Gigabit and 4 2.5GbE RJ45 connections. Console ports are for administration rather than extra data connections.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"ace-form-disclosure\"\u003e\u003csummary\u003e\u003ch3 class=\"ace-form-title\"\u003e\n\u003cspan class=\"ace-form-title-text\"\u003eHow Much PoE Power Is Available?\u003c\/span\u003e\u003cspan class=\"ace-form-toggle\" aria-hidden=\"true\"\u003e\u003cspan class=\"ace-form-expand\"\u003eExpand\u003c\/span\u003e\u003cspan class=\"ace-form-collapse\"\u003eCollapse\u003c\/span\u003e\u003cspan class=\"ace-form-chevron\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"ace-form-body\"\u003e\u003cp\u003eThe switch provides a 370W shared PoE budget with up to 30W per compatible IEEE 802.3af\/at access port. Individual port limits and the total budget both apply. Check every powered device and allow headroom before choosing the switch.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"ace-form-disclosure\"\u003e\u003csummary\u003e\u003ch3 class=\"ace-form-title\"\u003e\n\u003cspan class=\"ace-form-title-text\"\u003eHow Many Switches Can Be Stacked?\u003c\/span\u003e\u003cspan class=\"ace-form-toggle\" aria-hidden=\"true\"\u003e\u003cspan class=\"ace-form-expand\"\u003eExpand\u003c\/span\u003e\u003cspan class=\"ace-form-collapse\"\u003eCollapse\u003c\/span\u003e\u003cspan class=\"ace-form-chevron\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"ace-form-body\"\u003e\u003cp\u003eUp to eight switches in a physical ring or chain stack with up to 80 Gbps stacking bandwidth. Stacking uses the available 10G interfaces.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"ace-form-disclosure\"\u003e\u003csummary\u003e\u003ch3 class=\"ace-form-title\"\u003e\n\u003cspan class=\"ace-form-title-text\"\u003eAre SFP Modules and Stacking Cables Included?\u003c\/span\u003e\u003cspan class=\"ace-form-toggle\" aria-hidden=\"true\"\u003e\u003cspan class=\"ace-form-expand\"\u003eExpand\u003c\/span\u003e\u003cspan class=\"ace-form-collapse\"\u003eCollapse\u003c\/span\u003e\u003cspan class=\"ace-form-chevron\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"ace-form-body\"\u003e\u003cp\u003eSelect compatible optical modules or direct-attach cables separately for the intended link. Match the transceiver standard, fibre type, reach and switch compatibility. Where a 10G interface is used for stacking, include that allocation in the port plan.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"ace-form-disclosure\"\u003e\u003csummary\u003e\u003ch3 class=\"ace-form-title\"\u003e\n\u003cspan class=\"ace-form-title-text\"\u003eCan the Switch Route Between VLANs?\u003c\/span\u003e\u003cspan class=\"ace-form-toggle\" aria-hidden=\"true\"\u003e\u003cspan class=\"ace-form-expand\"\u003eExpand\u003c\/span\u003e\u003cspan class=\"ace-form-collapse\"\u003eCollapse\u003c\/span\u003e\u003cspan class=\"ace-form-chevron\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"ace-form-body\"\u003e\u003cp\u003eYes. The documented Layer 3 functions include IPv4\/IPv6 static routing, RIP\/RIPng and OSPFv2\/v3, alongside VLAN segmentation and access controls. It is a managed switch rather than a complete substitute for the internet gateway, firewall or security services.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"ace-form-disclosure\"\u003e\u003csummary\u003e\u003ch3 class=\"ace-form-title\"\u003e\n\u003cspan class=\"ace-form-title-text\"\u003eWhat Should Be Checked Before Installation?\u003c\/span\u003e\u003cspan class=\"ace-form-toggle\" aria-hidden=\"true\"\u003e\u003cspan class=\"ace-form-expand\"\u003eExpand\u003c\/span\u003e\u003cspan class=\"ace-form-collapse\"\u003eCollapse\u003c\/span\u003e\u003cspan class=\"ace-form-chevron\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"ace-form-body\"\u003e\u003cp\u003eConfirm the rack space, ventilation, mains supply, uplink media and connected-device PoE demand. The warranty is 5 years. Optional backup-power equipment and optics require their own exact compatibility check.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"D-Link","offers":[{"title":"Default Title","offer_id":41567702876219,"sku":"DGS-1520-28MP","price":1540.07,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0557\/4541\/3179\/products\/d-link-dgs-1520-28mp-28-port-gigabit-smart-managed-stackable-poe-layer-3-switch-with-20-poe-1000base-t-4-poe-25gbase-t-and-4-10gb-ports-424155.png?v=1702134724","url":"https:\/\/aceperipherals.com\/ja\/products\/d-link-dgs-1520-28mp","provider":"ACE Peripherals","version":"1.0","type":"link"}