{"product_id":"etherwan-ex78934h-0vb-poe-switch","title":"EtherWAN EX78934H-0VB 12-Port Gigabit PoE++ Compliant Managed Industrial Switch","description":"\n\u003cdiv class=\"cm-vendor-general\"\u003e\n\n  \u003c!-- STAT BAR --\u003e\n  \u003cdiv class=\"cm-stat-bar\"\u003e\n    \u003cdiv class=\"cm-stat-bar__item\"\u003e\n\u003cdiv class=\"cm-stat-bar__value\"\u003e12 × Gigabit\u003c\/div\u003e\n\u003cdiv class=\"cm-stat-bar__label\"\u003ePoE RJ45 Ports\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"cm-stat-bar__item\"\u003e\n\u003cdiv class=\"cm-stat-bar__value\"\u003e4 × 90W\u003c\/div\u003e\n\u003cdiv class=\"cm-stat-bar__label\"\u003eDesignated PoE++ Ports\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"cm-stat-bar__item\"\u003e\n\u003cdiv class=\"cm-stat-bar__value\"\u003e360W\u003c\/div\u003e\n\u003cdiv class=\"cm-stat-bar__label\"\u003eShared PoE Budget\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"cm-stat-bar__item\"\u003e\n\u003cdiv class=\"cm-stat-bar__value\"\u003e4 × SFP\u003c\/div\u003e\n\u003cdiv class=\"cm-stat-bar__label\"\u003e100\/1000BASE Uplinks\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"cm-stat-bar__item\"\u003e\n\u003cdiv class=\"cm-stat-bar__value\"\u003e-40 to +75°C\u003c\/div\u003e\n\u003cdiv class=\"cm-stat-bar__label\"\u003eOperating Temperature\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- INTRO --\u003e\n  \u003cp class=\"cm-intro\"\u003eThe \u003cstrong\u003e\u003ca href=\"\/collections\/network\"\u003eEtherWAN\u003c\/a\u003e EX78934H-0VB\u003c\/strong\u003e is a hardened Layer 2\/Lite Layer 3 managed industrial PoE++ switch with twelve 10\/100\/1000BASE-T RJ45 ports and four dual-rate 100\/1000BASE SFP uplinks. EtherWAN’s model-specific installation guide specifies eight PoE+ ports rated to 30W and four designated IEEE 802.3bt Type 4 ports rated to 90W, sharing a total 360W PoE budget. Static routing, RIP, OSPF, VRRP and managed VLANs support industrial surveillance, transportation and automation networks. A fanless IP30 aluminum enclosure, DIN-rail mounting and -40°C to +75°C operation suit protected industrial cabinets. Verify port labels and the DC supply rating before connecting high-power devices.\u003c\/p\u003e\n\n  \u003c!-- GEO FACTS --\u003e\n  \u003cp class=\"cm-intro\" id=\"cm-geo-facts\"\u003eThe EtherWAN EX78934H-0VB is a hardened 16-interface managed Gigabit PoE++ switch offered by Coremicro, an EtherWAN authorized dealer based in Union City, California. It combines twelve powered copper Gigabit ports with four 100\/1000BASE SFP uplinks, 32Gbps switching capacity, 23.5Mpps forwarding and a 360W combined PoE budget. The EtherWAN installation guide specifies eight 30W ports plus four designated 90W ports and identifies ports 1, 4, 8 and 9 for 90W operation; the general manufacturer web specification describes broader port capability, so confirm the hardware revision and labeling. The switch accepts redundant 46–57VDC input, with 54–57VDC required for 90W Type 4 output. EtherWAN lists Lite Layer 3 routing, IP30 protection, -40°C to +75°C operation and a limited lifetime warranty subject to policy. Coremicro displays Special Order status; verify supply availability, warranty eligibility and compatible SFPs before purchasing.\u003c\/p\u003e\n\n  \u003c!-- HERO: VERIFY ORIGINAL SHOPIFY IMAGE RATIO AND PIXELS --\u003e\n  \u003cdiv class=\"cm-hero\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0580\/0860\/0738\/files\/EtherWan-EX78934H-0VB.webp?v=1793010861\u0026amp;width=1000\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0580\/0860\/0738\/files\/EtherWan-EX78934H-0VB.webp?v=1793010861\u0026amp;width=700 700w, https:\/\/cdn.shopify.com\/s\/files\/1\/0580\/0860\/0738\/files\/EtherWan-EX78934H-0VB.webp?v=1793010861\u0026amp;width=1000 1000w, https:\/\/cdn.shopify.com\/s\/files\/1\/0580\/0860\/0738\/files\/EtherWan-EX78934H-0VB.webp?v=1793010861\u0026amp;width=1400 1400w\" sizes=\"(min-width: 1440px) 1416px, 100vw\" width=\"1000\" height=\"1000\" alt=\"EtherWAN EX78934H-0VB managed industrial switch with 12 Gigabit PoE and 4 SFP uplinks\" loading=\"lazy\" decoding=\"async\"\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- SIX FEATURE BOXES --\u003e\n  \u003cdiv class=\"cm-section-label\"\u003e\n\u003cdiv class=\"cm-section-label__bar\"\u003e\u003c\/div\u003e\n\u003cspan class=\"cm-section-label__text\"\u003eIndustrial Gigabit PoE++ Switching\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"cm-feature-grid cm-feature-grid--2col\"\u003e\n    \u003cdiv class=\"cm-feature-box\"\u003e\n      \u003cdiv class=\"cm-feature-box__icon\"\u003e⚡\u003c\/div\u003e\n      \u003ch3 class=\"cm-feature-box__title\"\u003eTwelve Gigabit PoE Ports, Mixed 30W\/90W Ratings\u003c\/h3\u003e\n      \u003cp class=\"cm-feature-box__text\"\u003eThe EX78934H-0VB combines eight 30W PoE+ positions with four designated IEEE 802.3bt Type 4 positions supporting up to 90W. The manufacturer quick installation guide identifies ports 1, 4, 8 and 9 for 90W use, though the current series web page presents a broader per-port specification. Check the actual port labels and shipping revision. All connected devices share a 360W maximum PoE budget.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cm-feature-box\"\u003e\n      \u003cdiv class=\"cm-feature-box__icon\"\u003e🌐\u003c\/div\u003e\n      \u003ch3 class=\"cm-feature-box__title\"\u003eFour 100M\/1G SFP Fiber Uplinks\u003c\/h3\u003e\n      \u003cp class=\"cm-feature-box__text\"\u003eFour separate 100\/1000BASE SFP slots connect the powered Gigabit copper edge to compatible fiber infrastructure at 100Mbps or 1Gbps. These are not 2.5G or 10G uplinks. Select the SFP optics for the required fiber type, wavelength, link length and compatible upstream equipment.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cm-feature-box\"\u003e\n      \u003cdiv class=\"cm-feature-box__icon\"\u003e🔋\u003c\/div\u003e\n      \u003ch3 class=\"cm-feature-box__title\"\u003eRedundant DC Input for High-Power PoE++\u003c\/h3\u003e\n      \u003cp class=\"cm-feature-box__text\"\u003eThe switch uses redundant 46–57VDC terminal-block power input, with different minimum voltages for each PoE class. IEEE 802.3bt Type 4 90W operation requires 54–57VDC; IEEE 802.3at\/bt 30W and 60W require 52–57VDC. Size the external source for the shared powered-device load plus up to 20W of switch consumption without PoE.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cm-feature-box\"\u003e\n      \u003cdiv class=\"cm-feature-box__icon\"\u003e🧭\u003c\/div\u003e\n      \u003ch3 class=\"cm-feature-box__title\"\u003eLite Layer 3 Routing and VRRP\u003c\/h3\u003e\n      \u003cp class=\"cm-feature-box__text\"\u003eLite Layer 3 functions include static IPv4 routing, RIP v1\/v2, OSPF v2 and VRRP, with a manufacturer-listed hardware limit of 64 routes. This supports suitable network segmentation and route redundancy when designed and configured by the network administrator.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cm-feature-box\"\u003e\n      \u003cdiv class=\"cm-feature-box__icon\"\u003e🔄\u003c\/div\u003e\n      \u003ch3 class=\"cm-feature-box__title\"\u003eVLANs, Alpha-Ring and Secure Administration\u003c\/h3\u003e\n      \u003cp class=\"cm-feature-box__text\"\u003eManaged Layer 2 features include IEEE 802.1Q VLANs, STP\/RSTP\/MSTP, EtherWAN Alpha-Ring, LACP, IGMP snooping and QoS. Management and security options include Web GUI, CLI, SNMP, SSH, HTTPS and RADIUS\/TACACS+ with access controls. Use the capabilities that match the deployment topology and security requirements.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cm-feature-box\"\u003e\n      \u003cdiv class=\"cm-feature-box__icon\"\u003e🌡️\u003c\/div\u003e\n      \u003ch3 class=\"cm-feature-box__title\"\u003eWide-Temperature IP30 Industrial Enclosure\u003c\/h3\u003e\n      \u003cp class=\"cm-feature-box__text\"\u003eThe fanless aluminum chassis is rated IP30, operates from -40°C to +75°C and mounts on a DIN rail. Two digital inputs and two relay alarm outputs support monitoring of suitable site conditions. The IP30 enclosure is not an outdoor weatherproof housing; use a protective cabinet as the installation requires.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- SIX AUDIENCE CARDS --\u003e\n  \u003cdiv class=\"cm-section-label\"\u003e\n\u003cdiv class=\"cm-section-label__bar\"\u003e\u003c\/div\u003e\n\u003cspan class=\"cm-section-label__text\"\u003eWho Uses an Industrial Managed PoE++ Switch\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"cm-audience-grid\"\u003e\n    \u003cdiv class=\"cm-audience-card\"\u003e\n      \u003cp class=\"cm-audience-card__label\"\u003eIndustrial IP Surveillance\u003c\/p\u003e\n      \u003cp class=\"cm-audience-card__text\"\u003eProvide managed Gigabit links and PoE to compatible cameras, including designated higher-power PTZ endpoints.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cm-audience-card\"\u003e\n      \u003cp class=\"cm-audience-card__label\"\u003eTransportation Network Teams\u003c\/p\u003e\n      \u003cp class=\"cm-audience-card__text\"\u003eConnect remote roadside and transit devices in properly rated cabinets with managed switching and SFP uplinks.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cm-audience-card\"\u003e\n      \u003cp class=\"cm-audience-card__label\"\u003eFactory Automation Integrators\u003c\/p\u003e\n      \u003cp class=\"cm-audience-card__text\"\u003eUse VLANs, Lite Layer 3 routing and Gigabit copper links to organize industrial networks.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cm-audience-card\"\u003e\n      \u003cp class=\"cm-audience-card__label\"\u003eCritical Infrastructure Engineers\u003c\/p\u003e\n      \u003cp class=\"cm-audience-card__text\"\u003ePlan redundant Ethernet paths, switch alarms and power arrangements for remote control cabinets.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cm-audience-card\"\u003e\n      \u003cp class=\"cm-audience-card__label\"\u003eFacility and Campus IT\u003c\/p\u003e\n      \u003cp class=\"cm-audience-card__text\"\u003eMonitor network connections and apply port-access policies for distributed Ethernet endpoints.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cm-audience-card\"\u003e\n      \u003cp class=\"cm-audience-card__label\"\u003eNetwork Maintenance Teams\u003c\/p\u003e\n      \u003cp class=\"cm-audience-card__text\"\u003eCheck the exact high-power port labels, transceiver compatibility and total PoE load during replacement work.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- TECHNICAL SPECIFICATIONS --\u003e\n  \u003cdiv class=\"cm-section-label\"\u003e\n\u003cdiv class=\"cm-section-label__bar\"\u003e\u003c\/div\u003e\n\u003cspan class=\"cm-section-label__text\"\u003eEX78934H-0VB Technical Specifications\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"cm-table-wrap\"\u003e\n    \u003ctable class=\"cm-table\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEtherWAN\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel \/ MPN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEX78934H-0VB\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEX78900H\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHardened managed Layer 2 \/ Lite Layer 3 industrial Gigabit PoE++ switch\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Network Interfaces\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16: 12 Gigabit RJ45 PoE ports plus 4 dual-rate SFP uplinks\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRJ45 Ethernet Ports\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12 × 10\/100\/1000BASE-T(X)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e30W PoE+ Port Count\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8, per EX78900H model-specific quick installation guide\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e90W PoE++ Port Count\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 designated ports, per EX78900H quick installation guide\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e90W PoE Port Positions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePorts 1, 4, 8 and 9 specified by the 2023 quick installation guide; verify unit\/revision labels\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer Port Rating Note\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCurrent series web page generically lists up to 90W on ports 1–12; confirm exact hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePoE Standards\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIEEE 802.3af, 802.3at, 802.3bt (Type 4 for 90W)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal PoE Budget\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e360W across all powered ports; not all per-port maximums simultaneously\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSFP Uplink Slots\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 × 100\/1000BASE SFP\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSFP Uplink Rates\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100Mbps or 1000Mbps with supported optical modules\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSFP Transceivers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSelect separately according to link speed, wavelength and fiber type\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSwitching Fabric\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32Gbps\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePacket Forwarding Rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e23.5Mpps\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePacket Buffer Memory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12M bits\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMAC Address Table\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16K entries\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eJumbo Frames\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9KB\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVLANs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIEEE 802.1Q; up to 256 VLANs, 4096 VID\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLite Layer 3 Routing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStatic routing, RIP v1\/v2, OSPF v2\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRouting Redundancy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVRRP\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHardware Route Limit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e64 entries\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLayer 2 Redundancy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSTP, RSTP, MSTP and EtherWAN Alpha-Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLink Aggregation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIEEE 802.3ad LACP; static trunks\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMulticast Management\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIGMP snooping v1\/v2\/v3\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTraffic Prioritization\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIEEE 802.1p QoS; 8 queues per port\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMonitoring\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSNMP v1\/v2c\/v3, RMON, LLDP, port mirroring and PoE watchdog\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAdministration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWeb GUI, CLI, Telnet, SSH, SFTP\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNetwork Security\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIEEE 802.1X, RADIUS, TACACS+, ACL, MAC address filtering, HTTPS\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConsole Port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 × RJ45 console interface\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConfiguration Backup\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 × USB Type-A port\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2; dry or wet contact support\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlarm Relay Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 contacts; 0.5A at 48VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGeneral DC Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRedundant 46–57VDC via terminal block; limits vary by PoE class\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage for 30W \/ 60W PoE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e52–57VDC for IEEE 802.3at\/bt Type 2\/3\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage for 90W PoE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e54–57VDC for IEEE 802.3bt Type 4\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSwitch Power Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20W maximum without connected PoE loads\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExternal DC Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRequired; verify capacity and accessories separately\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eReverse polarity protection\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to +75°C\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-45°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5–95%, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFanless aluminum, IP30\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDIN-rail; dry protected cabinet recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W × D × H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e72 × 140 × 170 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5 kg (3.3 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMTBF\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1,399,701 hours (EX78900H series)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIndustrial Compliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNEMA TS2, EN 50121-4, UL 61010 (series documentation)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer Package\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSwitch, console cable, mounting brackets\/screws, quick installation guide\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLimited lifetime as listed by EtherWAN; verify terms and eligibility\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoremicro Availability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSpecial Order; verify current stock and delivery\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- SINGLE FAQPAGE MICRODATA --\u003e\n  \u003cdiv class=\"cm-section-label\"\u003e\n\u003cdiv class=\"cm-section-label__bar\"\u003e\u003c\/div\u003e\n\u003cspan class=\"cm-section-label__text\"\u003eFrequently Asked Questions\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv itemscope itemtype=\"https:\/\/schema.org\/FAQPage\"\u003e\n    \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003ch3 itemprop=\"name\"\u003eWhat is the EtherWAN EX78934H-0VB used for?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cp itemprop=\"text\"\u003eIt is a hardened managed Gigabit PoE++ industrial switch with twelve RJ45 copper ports and four 100\/1000BASE SFP uplinks. Lite Layer 3 features and redundant DC input support professionally designed surveillance, transportation and automation networks.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003ch3 itemprop=\"name\"\u003eAre all twelve EX78934H-0VB PoE ports rated for 90W?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cp itemprop=\"text\"\u003eThe manufacturer quick installation guide specifies eight 30W ports and four designated 90W ports for this model, identifying ports 1, 4, 8 and 9 for 90W operation. The broader EtherWAN series web specification says ports 1–12 support up to 90W, so verify the particular hardware revision and port labels before deploying high-power devices.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003ch3 itemprop=\"name\"\u003eCan the switch supply 360W plus additional 30W PoE loads?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cp itemprop=\"text\"\u003eNo. The 360W figure is the combined maximum PoE power budget across all powered ports. Individual 30W and 90W ratings do not add to a separate budget, and the DC supply must support both the PoE loads and switch consumption.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003ch3 itemprop=\"name\"\u003eWhat DC power is required for 90W IEEE 802.3bt PoE++?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cp itemprop=\"text\"\u003eThe general redundant DC input range is 46–57VDC. To use IEEE 802.3bt Type 4 outputs at 90W, EtherWAN specifies 54–57VDC and an external supply with adequate capacity. Verify the exact power configuration before installation.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003ch3 itemprop=\"name\"\u003eHow many SFP uplinks does the EX78934H-0VB have?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cp itemprop=\"text\"\u003eThe EX78934H-0VB includes four dual-rate 100\/1000BASE SFP uplinks, supporting 100Mbps and 1Gbps with compatible transceivers. They are not rated for 2.5Gbps or 10Gbps.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003ch3 itemprop=\"name\"\u003eDoes the EX78934H-0VB support Lite Layer 3 and ring redundancy?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cp itemprop=\"text\"\u003eYes. EtherWAN lists static routing, RIP v1\/v2, OSPF v2, VRRP, STP\/RSTP\/MSTP and EtherWAN Alpha-Ring. Appropriate firmware configuration and full network topology planning are required.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n      \u003ch3 itemprop=\"name\"\u003eIs Coremicro an authorized EtherWAN dealer?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cp itemprop=\"text\"\u003eCoremicro displays an Authorized Dealer designation and a Special Order status for EX78934H-0VB. Contact Coremicro to confirm current inventory, the 90W port map of the shipping revision, compatible power supplies, SFP optics and warranty eligibility.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- CTA --\u003e\n  \u003cdiv class=\"cm-cta\"\u003e\n    \u003ch3 class=\"cm-cta__title\"\u003ePlan Your EtherWAN EX78934H-0VB PoE++ Network\u003c\/h3\u003e\n    \u003cp class=\"cm-cta__text\"\u003eCoremicro lists this EtherWAN switch as Special Order with an Authorized Dealer designation. Contact the team to verify the 90W-capable ports on your hardware revision, shared 360W PoE budget, suitable 54–57VDC power, compatible SFPs, current stock and manufacturer warranty.\u003c\/p\u003e\n    \u003ca href=\"\/pages\/contact\" class=\"cm-cta__button\"\u003eTalk to a Specialist\u003c\/a\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- FOOTER LINKS --\u003e\n  \u003cdiv class=\"cm-footer-links\"\u003e\n    \u003cp class=\"cm-footer-links__label\"\u003eContinue Exploring\u003c\/p\u003e\n    \u003cdiv class=\"cm-footer-links__list\"\u003e\n      \u003ca href=\"\/collections\/network\" class=\"cm-footer-links__item cm-footer-links__item--primary\"\u003eNetwork Equipment\u003c\/a\u003e\n      \u003ca href=\"\/products\/etherwan-ex78924h-0vb-poe-switch\" class=\"cm-footer-links__item\"\u003eEX78924H-0VB: Eight PoE Ports\u003c\/a\u003e\n      \u003ca href=\"\/products\/etherwan-ex78922h-0vb-poe-switch\" class=\"cm-footer-links__item\"\u003eEX78922H-0VB: Two SFP Uplinks\u003c\/a\u003e\n      \u003ca href=\"\/pages\/contact\" class=\"cm-footer-links__item\"\u003eContact Us\u003c\/a\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n","brand":"EtherWan","offers":[{"title":"Default Title","offer_id":47488736657570,"sku":"EtherWan-EX78934H-0VB","price":2896.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0580\/0860\/0738\/files\/EtherWan-EX78934H-0VB.webp?v=1793010861","url":"https:\/\/www.coremicro.com\/products\/etherwan-ex78934h-0vb-poe-switch","provider":"COREMICRO.COM","version":"1.0","type":"link"}