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| Warning | ||
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Before supplying power to the Um models an external antenna or RF terminators with 50 Ohms resistance must be connected to both N-type connectors. During laboratory testing, it is allowed to directly connect two devices with RF cables without antennas with the mandatory use of attenuators with attenuation of at least 40 dB for each polarization. Switching off/on the attenuators and RF cables should only be performed when the devices are in the off state. In case the antenna, attenuator or terminator is connected to only one N-type connector do not switch on the device. PLEASE NOTE THAT VIOLATION OF THE ABOVE REQUIREMENTS VOIDS THE WARRANTY. |
| Note | ||
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If there is no data transfer via one of the device ports (GE0 or GE1), the second port can be used as a backup for data transfer. THE DEVICE IS OUT OF WARRANTY IN THIS CASE. |