Product Highlights
- 12 Gigabit PoE Ethernet Port
- Four 100/1000BASE SFP Uplinks
- Managed Layer 3 Routing
- 240W Total PoE Power Budget
EtherWAN EX78934R-0VB Hardened Managed Layer 3 Gigabit Ethernet PoE Switch
- SKU:
- EtherWan-EX78934R-0VB
- MPN:
- EX78934R-0VB
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Description
Product Overview
The EtherWAN EX78934R-0VB 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.
The 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.
Twelve Gigabit PoE Ports with 30W/60W Allocation
The 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.
Four Dual-Rate 100M/1G SFP Fiber Uplinks
Four 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.
240W Shared PoE with Redundant 52–57VDC Input
The 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.
Lite Layer 3 Routing, OSPF and VRRP
Managed 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.
Alpha-Ring, VLANs and Secure Management
EtherWAN 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.
Fanless IP30 Aluminum Industrial Enclosure
The 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.
Transportation Network Integrators
Connect managed PoE devices and fiber uplinks in properly protected roadside or transit cabinets.
IP Surveillance Installers
Power compatible cameras while budgeting the eight 30W and four 60W Ethernet ports.
Industrial Automation Teams
Separate control and monitoring networks with VLANs and supported Lite Layer 3 routing.
Critical Infrastructure Engineers
Build managed fiber uplinks and redundant network paths using suitable ring or routing designs.
Municipal and Campus IT
Monitor distributed Gigabit endpoints and configure network-access and security policies.
Field Maintenance Technicians
Check port-specific power, optical-module compatibility and DC supply sizing during deployment.
| Specification | Detail |
|---|---|
| Manufacturer | EtherWAN |
| Model / MPN | EX78934R-0VB |
| Manufacturer Series | EX78900R |
| Product Category | Hardened managed Layer 2 / Lite Layer 3 industrial PoE Ethernet switch |
| Total Network Data Interfaces | 16: 12 Gigabit RJ45 plus 4 SFP slots |
| Copper Ethernet Ports | 12 × 10/100/1000BASE-T(X) RJ45 |
| PoE Ports 1–4 | Up to 30W per port |
| PoE Ports 5–8 | Up to 60W per port; IEEE 802.3bt |
| PoE Ports 9–12 | Up to 30W per port |
| PoE Standards | IEEE 802.3af, 802.3at, 802.3bt |
| Maximum Combined PoE Budget | 240W shared across all twelve powered ports |
| Gigabit Fiber Uplinks | 4 × 100/1000BASE SFP |
| SFP Link Speeds | 100Mbps or 1000Mbps with compatible modules |
| Optical Modules | Select separately for speed, fiber type, wavelength and distance |
| Switching Fabric | 32Gbps |
| Forwarding Rate | 23.5Mpps |
| Packet Buffer Memory | 12 Mbits |
| MAC Address Table | 16K entries |
| Jumbo Frame Size | 9KB |
| VLAN Capacity | 256 VLANs (4096 VID) |
| Lite Layer 3 Routing | Static IPv4 routes, RIP v1/v2, OSPF v2 |
| Routing Redundancy | VRRP |
| Maximum Hardware Routes | 64 entries |
| Ethernet Ring Redundancy | EtherWAN Alpha-Ring |
| Other Redundancy Protocols | STP, RSTP, MSTP |
| Link Aggregation | Static trunking (4 groups); IEEE 802.3ad LACP |
| Multicast Management | IGMP snooping v1/v2/v3 |
| Quality of Service | 8 priority queues per port; IEEE 802.1p, DSCP and rate limiting |
| Management Access | Web GUI, CLI, Telnet |
| Monitoring Protocols | SNMP v1/v2c/v3, RMON, LLDP, NTP, port mirroring |
| Security Features | IEEE 802.1X, SSH, HTTPS, RADIUS, TACACS+, ACLs, MAC filtering |
| Access Control List Capacity | Up to 4096 entries |
| Other Switch Functions | PoE watchdog, DHCP server/client, configuration backup |
| Console Port | 1 × RS232 |
| Configuration Backup Port | 1 × USB Type-A |
| Redundant DC Power Input | 52–57VDC terminal block |
| Switch Power Consumption | 20W maximum without PoE |
| Power Input Protection | Reverse-polarity protection |
| External DC Power Supply | Required; choose sufficient wattage for PoE load plus switch consumption |
| Detailed Operating Temperature | -40°C to +70°C (-40°F to +158°F) |
| Temperature Rating Clarification | Manufacturer highlights state +75°C; detailed environmental data state +70°C. Verify with EtherWAN. |
| Storage Temperature | -45°C to +85°C |
| Relative Humidity | 5–95%, non-condensing |
| Enclosure Material | Aluminum, fanless |
| Ingress Protection | IP30; install in an appropriately protective enclosure |
| Mounting | DIN-rail |
| Dimensions (W × D × H) | 72 × 140 × 170 mm |
| Weight | 1.5kg (3.3lb) |
| System RAM | 2Gb DDR3 SDRAM |
| Flash Storage | 1Gb |
| Compliance References | FCC Part 15B Class A; VCCI Class A; EN 61000-6-4 |
| Manufacturer Warranty | Limited lifetime, subject to EtherWAN policy |
| Current Coremicro Listing | Special Order; confirm actual stock and delivery terms |
| Dealer Designation | Authorized Dealer label displayed on Coremicro listing |
What is the EtherWAN EX78934R-0VB used for?
The 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.
Which EX78934R-0VB ports support 60W PoE?
EtherWAN 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.
Can all twelve PoE ports draw their maximum power at once?
No. 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.
What SFP uplink speeds does the EX78934R-0VB support?
It 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.
What is the operating temperature range of the EX78934R-0VB?
EtherWAN 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.
Does the EX78934R-0VB support Layer 3 routing and ring redundancy?
Yes. 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.
Is Coremicro an authorized EtherWAN dealer?
Coremicro 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.
Plan Your EtherWAN EX78934R-0VB PoE Network
Coremicro 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.
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EtherWAN EX78934R-0VB Hardened Managed Layer 3 Gigabit Ethernet PoE Switch Specifications
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