Product Highlights
- 12 Gigabit PoE++ Ports
- Four Gigabit SFP Uplinks
- 360W Total PoE Budget
- Managed Layer 3 Routing
EtherWAN EX78934H-0VB 12-Port Gigabit PoE++ Compliant Managed Industrial Switch
- SKU:
- EtherWan-EX78934H-0VB
- MPN:
- EX78934H-0VB
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Description
Product Overview
The EtherWAN EX78934H-0VB 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.
The 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.
Twelve Gigabit PoE Ports, Mixed 30W/90W Ratings
The 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.
Four 100M/1G SFP Fiber Uplinks
Four 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.
Redundant DC Input for High-Power PoE++
The 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.
Lite Layer 3 Routing and VRRP
Lite 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.
VLANs, Alpha-Ring and Secure Administration
Managed 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.
Wide-Temperature IP30 Industrial Enclosure
The 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.
Industrial IP Surveillance
Provide managed Gigabit links and PoE to compatible cameras, including designated higher-power PTZ endpoints.
Transportation Network Teams
Connect remote roadside and transit devices in properly rated cabinets with managed switching and SFP uplinks.
Factory Automation Integrators
Use VLANs, Lite Layer 3 routing and Gigabit copper links to organize industrial networks.
Critical Infrastructure Engineers
Plan redundant Ethernet paths, switch alarms and power arrangements for remote control cabinets.
Facility and Campus IT
Monitor network connections and apply port-access policies for distributed Ethernet endpoints.
Network Maintenance Teams
Check the exact high-power port labels, transceiver compatibility and total PoE load during replacement work.
| Specification | Detail |
|---|---|
| Manufacturer | EtherWAN |
| Model / MPN | EX78934H-0VB |
| Manufacturer Series | EX78900H |
| Product Type | Hardened managed Layer 2 / Lite Layer 3 industrial Gigabit PoE++ switch |
| Total Network Interfaces | 16: 12 Gigabit RJ45 PoE ports plus 4 dual-rate SFP uplinks |
| RJ45 Ethernet Ports | 12 × 10/100/1000BASE-T(X) |
| 30W PoE+ Port Count | 8, per EX78900H model-specific quick installation guide |
| 90W PoE++ Port Count | 4 designated ports, per EX78900H quick installation guide |
| 90W PoE Port Positions | Ports 1, 4, 8 and 9 specified by the 2023 quick installation guide; verify unit/revision labels |
| Manufacturer Port Rating Note | Current series web page generically lists up to 90W on ports 1–12; confirm exact hardware |
| PoE Standards | IEEE 802.3af, 802.3at, 802.3bt (Type 4 for 90W) |
| Total PoE Budget | 360W across all powered ports; not all per-port maximums simultaneously |
| SFP Uplink Slots | 4 × 100/1000BASE SFP |
| SFP Uplink Rates | 100Mbps or 1000Mbps with supported optical modules |
| SFP Transceivers | Select separately according to link speed, wavelength and fiber type |
| Switching Fabric | 32Gbps |
| Packet Forwarding Rate | 23.5Mpps |
| Packet Buffer Memory | 12M bits |
| MAC Address Table | 16K entries |
| Jumbo Frames | 9KB |
| VLANs | IEEE 802.1Q; up to 256 VLANs, 4096 VID |
| Lite Layer 3 Routing | Static routing, RIP v1/v2, OSPF v2 |
| Routing Redundancy | VRRP |
| Hardware Route Limit | 64 entries |
| Layer 2 Redundancy | STP, RSTP, MSTP and EtherWAN Alpha-Ring |
| Link Aggregation | IEEE 802.3ad LACP; static trunks |
| Multicast Management | IGMP snooping v1/v2/v3 |
| Traffic Prioritization | IEEE 802.1p QoS; 8 queues per port |
| Monitoring | SNMP v1/v2c/v3, RMON, LLDP, port mirroring and PoE watchdog |
| Administration | Web GUI, CLI, Telnet, SSH, SFTP |
| Network Security | IEEE 802.1X, RADIUS, TACACS+, ACL, MAC address filtering, HTTPS |
| Console Port | 1 × RJ45 console interface |
| Configuration Backup | 1 × USB Type-A port |
| Digital Inputs | 2; dry or wet contact support |
| Alarm Relay Outputs | 2 contacts; 0.5A at 48VDC |
| General DC Input | Redundant 46–57VDC via terminal block; limits vary by PoE class |
| Voltage for 30W / 60W PoE | 52–57VDC for IEEE 802.3at/bt Type 2/3 |
| Voltage for 90W PoE | 54–57VDC for IEEE 802.3bt Type 4 |
| Switch Power Consumption | 20W maximum without connected PoE loads |
| External DC Supply | Required; verify capacity and accessories separately |
| Power Protection | Reverse polarity protection |
| Operating Temperature | -40°C to +75°C |
| Storage Temperature | -45°C to +85°C |
| Operating Humidity | 5–95%, non-condensing |
| Enclosure | Fanless aluminum, IP30 |
| Mounting | DIN-rail; dry protected cabinet recommended |
| Dimensions (W × D × H) | 72 × 140 × 170 mm |
| Weight | 1.5 kg (3.3 lb) |
| MTBF | 1,399,701 hours (EX78900H series) |
| Industrial Compliance | NEMA TS2, EN 50121-4, UL 61010 (series documentation) |
| Manufacturer Package | Switch, console cable, mounting brackets/screws, quick installation guide |
| Warranty | Limited lifetime as listed by EtherWAN; verify terms and eligibility |
| Coremicro Availability | Special Order; verify current stock and delivery |
What is the EtherWAN EX78934H-0VB used for?
It 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.
Are all twelve EX78934H-0VB PoE ports rated for 90W?
The 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.
Can the switch supply 360W plus additional 30W PoE loads?
No. 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.
What DC power is required for 90W IEEE 802.3bt PoE++?
The 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.
How many SFP uplinks does the EX78934H-0VB have?
The 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.
Does the EX78934H-0VB support Lite Layer 3 and ring redundancy?
Yes. 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.
Is Coremicro an authorized EtherWAN dealer?
Coremicro 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.
Plan Your EtherWAN EX78934H-0VB PoE++ Network
Coremicro 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.
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EtherWAN EX78934H-0VB 12-Port Gigabit PoE++ Compliant Managed Industrial Switch Specifications
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