RUT140 Powering Options: Difference between revisions
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Revision as of 09:46, 4 April 2024
Main Page > RUT Routers > RUT140 > RUT140 Manual > RUT140 Powering OptionsThis chapter contains information on powering options supported by RUT140 routers.
Power socket
The router has a 3 pin power socket and can be powered by a 9-30 VDC power supply unit (PSU). Refer to the image below for the power socket's pinout information:
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If you decide not to use the standard 9 VDC wall adapter and want to power the device from a higher voltage (15-30 VDC), please make sure that you choose a power supply of high quality. Some power supplies can produce voltage peaks significantly higher than the declared output voltage, especially during connection and disconnection.
While the device is designed to accept input voltage of up to 30 VDC peaks, high voltage power supplies can harm the device. If you want to use high voltage power supplies it is recommended to also use additional safety equipment to suppress voltage peaks from the power supply.
Suggestion: If you're using a different power supply than the one included in the standard packaging, make sure it meets the same power (W) specifications as the original. Otherwise, some features of the device might not work properly. Please refer to the device's portfolio page to verify the power supply specifications: Power Consumption
Passive PoE
The device may also be powered by an Ethernet cable via the LAN1 port:
(Do not use in other ports!)
- The device is NOT COMPLIANT with the IEEE 802.3af-2003 standard: powering the device from an IEEE 802.3af-2003 power supply will damage the device as it is not rated for input voltages of the PoE standard.
- The device is NOT COMPLIANT with the IEEE 802.3at standard: it cannot power other devices over Ethernet.
| Pin | 10/100 mode B, DC on spares | T568A Color | T568B Color | Pins on plug face (socket is reversed) | |
| 1 | TX+ |  white/green stripe |
 white/orange stripe |
| |
| 2 | TX- |  green solid |
 orange solid | ||
| 3 | RX+ | white/orange stripe |
white/green stripe | ||
| 4 | DC+ | 9-30 VDC |  blue solid |
blue solid | |
| 5 | DC+ | 9-30 VDC |  white/blue stripe |
white/blue stripe | |
| 6 | RX- | orange solid |
green solid | ||
| 7 | DC- |  white/brown stripe |
white/brown stripe | ||
| 8 | DC- |  brown solid |
brown solid | ||
Ground loops
Do not connect the power supply negative terminal of our device to the chassis or earth exclusively.
This connection could cause ground loops. For example, if the antenna shield and power supply negative terminal are connected to the chassis or earth, it forms a ground loop, therefore unwanted current could flow through a device PCB ground and may cause damage.
