Mobile Network Solutions
Nexcom Mobile POE Switch – VES 31-4SR/8SR
4/8+2 Unmanaged Gigabit Ethernet Switch with 4/8-Port PoE+ for Railway
Main Feature
- 4/8 x IEEE 802.3af/at compliant Gigabit Ethernet ports, 120W
- 4/8 PoE+ standard + 2 x M12 Gigabit Ethernet ports with X-coded connectors
- Low battery voltage protection
- CE/FCC/UKCA/EN50155 class OT4 compliance
- Wide power input range 9~36VDC
- Jumbo frame support (up to 9216 Bytes)
- Support ignition power on/off
- Power on/off delay time setting
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Datasheet
The VES 31-4SR/VES 31-8SR unmanaged mobile PoE switch is designed for telematics applications in harsh environments with a fanless enclosure. It provides 6/10 Giga-bit Fast Ethernet ports, including 4/8 IEEE 802.3af/at compliant PoE+ ports, to smoothly and quickly transfer large amounts of video streams, audio, and critical data over the Ethernet network.
The mobile PoE switches support a wide voltage input range of 9VDC to 36VDC for trains with 24VDC power systems. The VES 31-4SR/VES 31-8SR provides intelligent power management with low battery voltage protection, power-on and power-off delay timer, and auto-ignition power-on/off functions. These unique features can ensure reliable operation of both PoE switches and trains and prevent premature failure.
The VES 31-4SR/VES 31-8SR is housed in a fanless, dust-proof enclosure and can operate in shock, vibration, and extreme temperatures from -40 to 70°C. The mobile PoE switches are also compact and support optional DIN rail mounting for easy installation with PD devices such as IP cameras and Wi-Fi access points.
| Architecture | Switch architecture. Highly integrated, unmanaged intelligent gigabit, store-and-forward switch with 4-way hashing algorithm and 2K-entry MAC address table |
| Power over Ethernet | PoE standard IEEE 802.3af/at Power over Ethernet/PSE PoE power supply type pinout PoE power output per port 54V DC, 550mA. 30 watts max |
| Network Connection | 4/8 port M12 X-coded for 10/100/1000 base-T. PoE IEEE 802.3af/at compliance, total 120W. 2 port M12 X-coded for 10/100/1000 base-T |
| Standard Compatibility | IEEE 802.3 for 10BaseT Ethernet 100BaseT(X) IEEE 802.3u for Fast Ethernet 1000BaseT(X) IEEE 802.3ab for Gigabit Ethernet IEEE 802.3x for flow control IEEE 802.3af/at Power over Ethernet |
| I/O Interface | Power: 9~36VDC input with ignition for 24VDC railway system Ethernet - 4/8 x M12 X-coded 10/100/1000 Mbps PoE port, 802.3af/at compliance - 2 x M12 X-coded 10/100/1000 Mbps LED - 1 x power indicator - 4/8 x PoE indicator (for PoE) + 4/8 x Link/Active indicator - 2 x Active/Link indicator (for LAN) - 1 x undervoltage protection indicator |
| Power Management | Selectable startup and shutdown voltage for low power protection via DIP switch Power on/off delay time adjustment via DIP switch |
| Dimensions | 211 x 89 x 140mm (83"x35"x55.1") with wall mount bracket Weight: 1.3kg Horizontal mount bracket, DIN-Rail mount (optional) |
| Environment | EN 50155, class OT4 (-40~70°C), 85°C for 10 minutes with air flow - Interruptions of voltage supply class S1 - Supply change class C1, C2 - EMC EN 50121-1: 2017, EN 50121-3-2: 2016+A1: 2019 - Environment EN 60068-2-1, EN 60068-2-2, EN 60068-2-30 - Shock and vibration IEC 61373 Class B - Protective coating class PC1 (PC2, on request) Storage temperatures: -40°C to 85°C Relative humidity: 10% to 90% (non-condensing) Vibration (random): 2g@5~500 Hz Vibration: - Operation: MIL-STD-810H, Method 514.8C Procedure 1, Category 4, common carrier U.S. highway truck vibration exposure - Storage: MIL-STD-810H, Method 514.8E Procedure 1, Category 24 Shock: - Operating: MIL-STD-810H, Method 516.8 Procedure I, trucks and semi-trailers = 40 g - Non-operating: MIL-STD-810H, Method 516.8 Procedure V, crash hazard shock test = 75 g |
| Standards/Certificates | THIS FCC Class A EN 50155 UKCA |
