User's Manual

RBS Installation Instructions
1.
Route the grounding cable from the site grounding system to the RRU-N
grounding point.
2.
Loosen the M8 nut and connect
the ground cable according to
the figure below. The washer
must be placed between the
bolt and the cable lug of the
grounding cable. Tighten the
nut to 15 Nm, using a torque
wrench fitted with a 13 mm
socket.
K000352C
3.2.5 Connecting the –48 V DC Power
Caution!
Stop! Do not install or modify AC or DC powered equipment unless you are a
qualified and authorized electrician. Improper installation work can seriously
damage the equipment.
To connect the –48 V DC power to the RRU-N, perform the following steps:
1.
Ensure that the external AC power is switched off before connecting the
cable.
2.
Loosen the four captive screws
on the left panel of the RRU-N,
and release the panel.
Note: The left panel is attached
to the RRU-N by means of a
short cord, so the panel can be
released and allowed to hang
free.
K000348B
!
14 50/1531-LZA 701 0001 Uen PA4 2008-07-31