{"product_id":"etherwan-ex78934r-0vb-poe-switch","title":"EtherWAN EX78934R-0VB Hardened Managed Layer 3 Gigabit Ethernet PoE Switch","description":"\n\u003c!-- CSS loads automatically via theme — do not include render tag --\u003e\n\u003cdiv class=\"cm-vendor-general\"\u003e\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 Copper Ports\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\"\u003e100M \/ 1G Uplinks\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"cm-stat-bar__item\"\u003e\n\u003cdiv class=\"cm-stat-bar__value\"\u003e240W\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\"\u003e60W\u003c\/div\u003e\n\u003cdiv class=\"cm-stat-bar__label\"\u003eMaximum on Ports 5–8\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 +70°C\u003c\/div\u003e\n\u003cdiv class=\"cm-stat-bar__label\"\u003eDetailed Operating Rating\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 EX78934R-0VB\u003c\/strong\u003e is a hardened managed industrial PoE switch with twelve 10\/100\/1000BASE-T(X) copper ports and four 100\/1000BASE SFP uplinks. Eight PoE ports support up to 30W each, four designated ports support up to 60W each, and all twelve share a maximum 240W power budget. Static routing, RIP, OSPF, VRRP, VLANs and Alpha-Ring make the EX78900R platform suitable for managed industrial, transportation and IP surveillance networks. Its fanless IP30 aluminum design supports protected network cabinet installations.\u003c\/p\u003e\n\n  \u003c!-- GEO FACTS --\u003e\n  \u003cp class=\"cm-intro\" id=\"cm-geo-facts\"\u003eThe EtherWAN EX78934R-0VB is a hardened 16-interface managed industrial PoE Ethernet switch listed by Coremicro in the United States. EtherWAN specifies twelve Gigabit RJ45 PoE ports, four 100\/1000BASE SFP uplinks, 240W total PoE power, 32Gbps switching fabric, 23.5Mpps forwarding and redundant 52–57VDC power input. PoE output is limited to 30W on ports 1–4 and 9–12, and 60W on ports 5–8. Its detailed environmental specification states -40°C to +70°C, whereas manufacturer highlights mention +75°C; verify the exact revision before installing above +70°C. EtherWAN lists a limited lifetime warranty subject to policy. Coremicro displays Special Order and Authorized Dealer designations; confirm inventory, power-supply sizing, transceivers and warranty eligibility before buying.\u003c\/p\u003e\n\n  \u003c!-- HERO: SOURCE IMAGE RESOLUTION AND ASPECT RATIO NOT INDEPENDENTLY CONFIRMED --\u003e\n  \u003cdiv class=\"cm-hero\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0580\/0860\/0738\/files\/EtherWan-EX78934R-0VB.webp?v=1793010850\u0026amp;width=1000\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0580\/0860\/0738\/files\/EtherWan-EX78934R-0VB.webp?v=1793010850\u0026amp;width=700 700w, https:\/\/cdn.shopify.com\/s\/files\/1\/0580\/0860\/0738\/files\/EtherWan-EX78934R-0VB.webp?v=1793010850\u0026amp;width=1000 1000w, https:\/\/cdn.shopify.com\/s\/files\/1\/0580\/0860\/0738\/files\/EtherWan-EX78934R-0VB.webp?v=1793010850\u0026amp;width=1400 1400w\" sizes=\"(min-width: 1440px) 1416px, 100vw\" width=\"1000\" height=\"1000\" alt=\"EtherWAN EX78934R-0VB industrial managed PoE switch with 12 Gigabit ports and 4 SFP uplinks\" loading=\"lazy\" decoding=\"async\"\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- SIX FEATURE BOXES, TWO COLUMNS --\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 and Lite Layer 3 Networking\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 with 30W\/60W Allocation\u003c\/h3\u003e\n      \u003cp class=\"cm-feature-box__text\"\u003eThe EX78934R-0VB provides twelve 10\/100\/1000BASE-T(X) PoE copper connections. Ports 1–4 and 9–12 support up to 30W each, while ports 5–8 support up to 60W each under IEEE 802.3bt. These individual ratings share a 240W overall PoE power budget, so not every port can draw its maximum at once.\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 Dual-Rate 100M\/1G SFP Fiber Uplinks\u003c\/h3\u003e\n      \u003cp class=\"cm-feature-box__text\"\u003eFour separate 100\/1000BASE SFP slots allow compatible fiber uplinks at 100Mbps or 1Gbps. Select optical modules based on the fiber grade, wavelength, distance and matching upstream interface. These SFP ports are not specified for 2.5G or 10G operation.\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\"\u003e240W Shared PoE with Redundant 52–57VDC Input\u003c\/h3\u003e\n      \u003cp class=\"cm-feature-box__text\"\u003eThe 240W total PoE allocation is supplied through redundant 52–57VDC terminal-block power inputs. EtherWAN specifies 20W maximum switch consumption without PoE, so size the external supply for the switch itself plus all connected powered devices and any required headroom. A 240W supply alone should not be assumed sufficient for a fully loaded 240W PoE output.\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, OSPF and VRRP\u003c\/h3\u003e\n      \u003cp class=\"cm-feature-box__text\"\u003eManaged routing supports static IPv4 routes, RIP v1\/v2, OSPF v2 and Virtual Router Redundancy Protocol. The manufacturer lists a maximum of 64 hardware routing entries. These capabilities support organized network segmentation and properly configured route redundancy.\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\"\u003eAlpha-Ring, VLANs and Secure Management\u003c\/h3\u003e\n      \u003cp class=\"cm-feature-box__text\"\u003eEtherWAN Alpha-Ring, STP\/RSTP\/MSTP, IEEE 802.1Q VLANs and LACP support resilient Layer 2 designs. SNMP v1\/v2c\/v3, web administration, CLI, IEEE 802.1X, SSH, HTTPS, RADIUS\/TACACS+ and ACLs provide monitoring and access controls. Use secure management settings appropriate for the site.\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\"\u003eFanless IP30 Aluminum Industrial Enclosure\u003c\/h3\u003e\n      \u003cp class=\"cm-feature-box__text\"\u003eThe aluminum chassis is fanless, IP30 rated and designed for protected industrial network installations. EtherWAN lists -40°C to +70°C in its environmental specification, although the highlight text says +75°C; verify the temperature rating for the shipping revision before operating above +70°C. The cabinet must provide any required weather and dust protection.\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 a Hardened 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\"\u003eTransportation Network Integrators\u003c\/p\u003e\n      \u003cp class=\"cm-audience-card__text\"\u003eConnect managed PoE devices and fiber uplinks in properly protected roadside or transit cabinets.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cm-audience-card\"\u003e\n      \u003cp class=\"cm-audience-card__label\"\u003eIP Surveillance Installers\u003c\/p\u003e\n      \u003cp class=\"cm-audience-card__text\"\u003ePower compatible cameras while budgeting the eight 30W and four 60W Ethernet ports.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cm-audience-card\"\u003e\n      \u003cp class=\"cm-audience-card__label\"\u003eIndustrial Automation Teams\u003c\/p\u003e\n      \u003cp class=\"cm-audience-card__text\"\u003eSeparate control and monitoring networks with VLANs and supported Lite Layer 3 routing.\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\"\u003eBuild managed fiber uplinks and redundant network paths using suitable ring or routing designs.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cm-audience-card\"\u003e\n      \u003cp class=\"cm-audience-card__label\"\u003eMunicipal and Campus IT\u003c\/p\u003e\n      \u003cp class=\"cm-audience-card__text\"\u003eMonitor distributed Gigabit endpoints and configure network-access and security policies.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"cm-audience-card\"\u003e\n      \u003cp class=\"cm-audience-card__label\"\u003eField Maintenance Technicians\u003c\/p\u003e\n      \u003cp class=\"cm-audience-card__text\"\u003eCheck port-specific power, optical-module compatibility and DC supply sizing during deployment.\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\"\u003eEX78934R-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\u003eEX78934R-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\u003eEX78900R\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Category\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHardened managed Layer 2 \/ Lite Layer 3 industrial PoE Ethernet switch\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Network Data Interfaces\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16: 12 Gigabit RJ45 plus 4 SFP slots\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCopper Ethernet Ports\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12 × 10\/100\/1000BASE-T(X) RJ45\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePoE Ports 1–4\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 30W per port\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePoE Ports 5–8\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 60W per port; IEEE 802.3bt\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePoE Ports 9–12\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 30W per port\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\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Combined PoE Budget\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e240W shared across all twelve powered ports\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGigabit Fiber Uplinks\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 Link Speeds\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100Mbps or 1000Mbps with compatible modules\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptical Modules\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSelect separately for speed, fiber type, wavelength and distance\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\u003eForwarding 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\u003e12 Mbits\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 Frame Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9KB\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVLAN Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e256 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 IPv4 routes, 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\u003eMaximum Hardware Routes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e64 entries\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEthernet Ring Redundancy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEtherWAN Alpha-Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOther Redundancy Protocols\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSTP, RSTP, MSTP\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLink Aggregation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStatic trunking (4 groups); IEEE 802.3ad LACP\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\u003eQuality of Service\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 priority queues per port; IEEE 802.1p, DSCP and rate limiting\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManagement Access\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWeb GUI, CLI, Telnet\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMonitoring Protocols\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSNMP v1\/v2c\/v3, RMON, LLDP, NTP, port mirroring\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSecurity Features\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIEEE 802.1X, SSH, HTTPS, RADIUS, TACACS+, ACLs, MAC filtering\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccess Control List Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 4096 entries\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOther Switch Functions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePoE watchdog, DHCP server\/client, configuration backup\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 × RS232\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConfiguration Backup Port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 × USB Type-A\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRedundant DC Power Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e52–57VDC terminal block\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 PoE\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Input 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\u003eExternal DC Power Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRequired; choose sufficient wattage for PoE load plus switch consumption\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDetailed Operating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to +70°C (-40°F to +158°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Rating Clarification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eManufacturer highlights state +75°C; detailed environmental data state +70°C. Verify with EtherWAN.\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\u003eRelative 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 Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAluminum, fanless\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIngress Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP30; install in an appropriately protective enclosure\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\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\u003e1.5kg (3.3lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem RAM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2Gb DDR3 SDRAM\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlash Storage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1Gb\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompliance References\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFCC Part 15B Class A; VCCI Class A; EN 61000-6-4\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer Warranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLimited lifetime, subject to EtherWAN policy\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Coremicro Listing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSpecial Order; confirm actual stock and delivery terms\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDealer Designation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAuthorized Dealer label displayed on Coremicro listing\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- SEVEN FAQ ENTRIES, ONE FAQPAGE MICRODATA BLOCK --\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 EX78934R-0VB used for?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cp itemprop=\"text\"\u003eThe EX78934R-0VB is a hardened managed industrial Gigabit PoE switch with twelve copper powered ports and four dual-rate 100\/1000BASE SFP uplinks. Its Lite Layer 3 features support professionally configured surveillance, transportation and industrial infrastructure 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\"\u003eWhich EX78934R-0VB ports support 60W PoE?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cp itemprop=\"text\"\u003eEtherWAN specifies up to 60W on ports 5–8. Ports 1–4 and 9–12 support up to 30W each. All twelve PoE ports share a maximum combined budget of 240W.\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 all twelve PoE ports draw their maximum power at once?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cp itemprop=\"text\"\u003eNo. Eight 30W ports plus four 60W ports would exceed the shared 240W budget. Plan the actual combined device load and select a suitable 52–57VDC external power source.\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 SFP uplink speeds does the EX78934R-0VB support?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cp itemprop=\"text\"\u003eIt has four dual-rate 100\/1000BASE SFP uplink slots for compatible 100Mbps or 1Gbps optical modules. Select the module to match the link speed, wavelength, fiber and distance.\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 is the operating temperature range of the EX78934R-0VB?\u003c\/h3\u003e\n      \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n        \u003cp itemprop=\"text\"\u003eEtherWAN lists -40°C to +70°C in the detailed environmental specification, while the product highlights refer to +75°C. Use the detailed +70°C limit for conservative planning and confirm the rating of the shipping revision before higher-temperature operation.\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 EX78934R-0VB support Layer 3 routing 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 and VRRP alongside Layer 2 STP\/RSTP\/MSTP and Alpha-Ring. Deployment depends on correct topology and configuration.\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 label and marks EX78934R-0VB as Special Order. Contact Coremicro to verify current stock, compatible SFP modules, sufficient power supplies and manufacturer 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 EX78934R-0VB PoE Network\u003c\/h3\u003e\n    \u003cp class=\"cm-cta__text\"\u003eCoremicro displays an Authorized Dealer designation and Special Order status for EX78934R-0VB. Contact the team to check the 240W shared PoE budget, 30W\/60W port assignments, 52–57VDC power-supply capacity, appropriate SFP modules, the operating-temperature discrepancy and current availability before ordering.\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-ex78934h-0vb-poe-switch\" class=\"cm-footer-links__item\"\u003eEX78934H-0VB: 360W PoE++ Switch\u003c\/a\u003e\n      \u003ca href=\"\/products\/etherwan-ex78934e-0vb-cc-poe-switch-copy\" class=\"cm-footer-links__item\"\u003eEX78934E-0VB-CC: Conformal-Coated Switch\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\u003c\/div\u003e\n","brand":"EtherWan","offers":[{"title":"Default Title","offer_id":47488736690338,"sku":"EtherWan-EX78934R-0VB","price":4110.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0580\/0860\/0738\/files\/EtherWan-EX78934R-0VB_ab2c398a-6bb3-4c04-b2fa-1a173011f98f.webp?v=1793010855","url":"https:\/\/www.coremicro.com\/products\/etherwan-ex78934r-0vb-poe-switch","provider":"COREMICRO.COM","version":"1.0","type":"link"}