Main Features -
Fault Alarm (via electric relay)
- The built-in fault alarm function sends out alert via the electric relay when there’s fault on the network switch.
- It helps measure performance and quickly find out anomalies of the network switch.
Dual Power Input for High Reliability
- Automatically switch to secondary power input when primary power input fails, ensuring continuous operation without down time.
- Redundant power supply reduces possibility of single-point-of-failure.
Environmentally Hardened Design
- With a compact metal housing with an IP40 rating
- Environmentally hardened for direct deployment in difficult unconditioned out-of-plant and roadside installations.
- Extended ambient operating temperature range: -40 ̊ C to +75 ̊ C
Other Features -
- Converts 4 x 10/100/1000Base-TX to 1000Base-SFP
- Supports IEEE802.3af/at (30W)
- Supports external 1000Base-SFP
- Supports Full/Half-duplex, Auto MDI/MDIX
- 9K Bytes Jumbo Frame
- Supports DIN-Rail and Wall-mount installation
Ordering Information -
| Available Model | Description |
| ET4212PpH-S-DR | Hardened Grade Unmanaged 4-port 10/100/1000Base-TX (PoE+) + 1-port 1000Base-SFP Ethernet Switch with Redundant DC Power Inputs |
| Optional Accessories (to be purchased separately) | |
| SFP | (S)=SFP Option. Please select your SFP on our SFP Modules page for details. |
| Power Supply | Recommended power supply: MDR-120-48 or MDR-240-48. Please refer to the Power Adaptors and Power Supply page for more information. |
| Package Checklist | |
| - Unmanaged PoE Switch | x 1 |
| - Din Rail Clip | x 1 |
| - Wall Mount Kits | x 2 |
| - Quick Installation Guide | x 1 |
| Ethernet | |
| Standards | IEEE802.3 for 10BaseT |
| IEEE802.3u for Fast Ethernet | |
| IEEE802.3ab for Gigabit Ethernet | |
| IEEE802.3x for flow control and back pressure | |
| IEEE802.3z for Energy Efficient Ethernet (EEE) | |
| Processing Type | Store-and-Forward |
| Forward Filter Rate | 14,880pps (10Mbps) |
| 148,800pps (100Mbps) | |
| 1,488,000pps (1000Mbps) | |
| Cabling | 10Base-TX: Cat5 or above |
| 100Base-TX: Cat5 or above | |
| 1000Base-TX: Cat5 or above | |
| Packet Buffer Memory | 1Mbits |
| Max Packet Length | 10K |
| Address Table Size | 4K |
| Exchange Property | Delay time: < 7µs; Backplane bandwith: 12G; |
| Interface | |
| RJ45 port | 10/100/1000Mbps-Full/Half-duplex, Auto MDI/MDI-X |
| PoE port | IEEE 802.3af/at, PoE (30W) , 1/2(+), 3/6(-) |
| SFP port | 1000Base-SFP (suggest OTS SFP) |
| LED Indicators | PWR; LINK/ACT |
| Optical | |
| SFP port | 1000Base-SFP |
| Electrical and Mechanical | |
| Input Power | DC9-56V (Terminal block, Redundant power) |
| 30W PoE: DC48-56V (Suggest 52V) | |
| PoE Power | Maximum 30W per port |
| Total PoE Output | 120W |
| Power Consumption | Max. 3W (without PoE); Max. 123W (with PoE) |
| Connector | 1 removable 6-contact terminal blocks |
| Pin 1/2 for Power 1, Pin 3/4 for Power 2, Pin 5/6 for fault alarm | |
| Protection | Overload Current Protection, Reverse Polarity Protection |
| Dimensions | 120 x 90 x 35mm |
| Weight | 400 g |
| Casing | Aluminium case |
| Mounting Options | DIN Rail / Wall Mount |
| Environmental | |
| Operation Temperature | -40°C to 75°C (-40°F to 167°F) |
| Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
| Relative Humidity | 5% to 95% non-condensing |
| MTBF | > 100,000 hrs |
| Regulatory Approvals | |
| FCC Part 15 Subpart B | |
| RoHs | |
| IEC 62321-7-2:2017 | |
| IEC 62321-4:2013+A1:2017 | |
| IEC 62321-5:2013 | |
| IEC 62321-6:2015 | |
| IEC 62321-8:2017 | |
| EN 55032: 2016 | |
| EN 55035: 2017 | |