Nokia Solutions and Networks T4KJ1 Manual Do Utilizador
LTE eNodeB Indoor Hardware Installation
Quartz-high stability oscillator
Procedure 3-17
Q-HSO installation
1
Install the Q-HSO by inserting the tab into the slot in the BCUII. Refer to
. Push the Q-HSO until it seats in the D-type connector at the
rear of the tray.
2
Use a T20 Torx bit to install the Q-HSO. Torque to 2.25 N-m (20 in-lb)
3
NOTE
The Q–HSO must warm up for 60 minutes to reach a steady state
before it can take over for a failed GPS signal. If the active site
controller card reboots during the 60 minute warm-up period,
the timer is reset, and the Q–HSO must warm up for another 60
minutes before use.
before it can take over for a failed GPS signal. If the active site
controller card reboots during the 60 minute warm-up period,
the timer is reset, and the Q–HSO must warm up for another 60
minutes before use.
The REF FAULT LED on the BCUII controller card lights when the Q–HSO is
first installed but turns off by the time it is warmed up.
first installed but turns off by the time it is warmed up.
68P09308A55-6
3-29
FEB 2010