User guide
  Installing and Powering Up
2.1  Introduction 
2.1.1  General 
This chapter provides configuration and connection information for planning the 
installation of the MX8400 Multiplexer, or for installing the equipment at another 
location. This information also enables the final set up of the equipment to be 
checked in the event of a fault. In the event of problems, contact Ericsson Customer 
Services (see Preliminary Pages). 
2.1.2  Site Requirements 
2.1.2.1  Power Supplies 
The MX8400 Multiplexer can operate from the following power supply voltage range: 
•  100 – 240 V AC, 50/60 Hz (80 W with NO options fitted). 
See Annex B, Technical Specification for a full specification. 
2.1.2.2  Environment 
The MX8400 Multiplexer is intended to operate in ambient air temperature 
conditions in the range 0°C to +50°C, and humidity 0% to 95% (non-condensing). 
See Annex B, Technical Specification for a full specification. Do not install this 
product in areas of high humidity or where there is danger of water entry. 
2.1.2.3  Lightning Protection 
Warning! 
If the MX8400 Multiplexer has been subject to a lightning strike or power surge and 
has stopped working, disconnect the power supply immediately. Do not reconnect 
power until it has been checked for safety. if in doubt, contact Ericsson customer 
services. 
Where appropriate, ensure this product has an adequate level of lightning 
protection. Alternatively, during a lightning storm or when it is left unattended and 
unused for long periods of time, unplug it from the supply outlet and disconnect the 
antenna or cable system. This will prevent damage to the product from lightning and 
power line surges. 
2/1553-FGC 101 1014 Uen B 
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