5
Power Up
In this chapter:
5.1
Check Connections and DC Power Polarity
5.2
Apply Power to RU
5.3
Check LED Status
5.4
LED Display
5.5
Verify Alarm Status
5.6
RU Confirmation
Prior to powering up the RU, the following criteria must be completed:
■
Circuit breaker is off prior to connecting the RU
■
All cables at RU connected and terminated
■
Optical SFP installed
■
Antenna connection is complete
■
Weatherproofing applied to all cable connectors
Warning:
Avoid excessive power input to prevent RU damage. The
maximum absolute input level of the Rx port is +3.5 dBm (5 minute
max) based on 3GPP in-band blocking specifications.
Avertissement:
Évitez une alimentation électrique excessive pour
éviter d'endommager RU. Le niveau d'entrée absolu maximal du
port Rx est de +3,5 dBm (5 minutes maximum) sur la base des
spécifications de blocage dans la bande 3GPP.
Important:
The RU does not have a power switch. DC power on/off is controlled by the circuit breaker
of the DC power source. The circuit breaker must be set to off before applying power to the RU.
Note:
The RU requires less than one minute to fully power up.
Powering up an RU has the following environmental requirements:
■
Keep the temperature and humidity within the specified conditions.
■
Do not place around objects that obstruct the flow of air.
Power Up
126
Release 1.0
·
Issue 1.1, May 2021
Fujitsu and Fujitsu Customer Use Only
