User's Manual

Ericsson Internal
INSTALLATION INSTR. 18 ( 37 )
/ XKUEMHU 50/1531-LZA 701 0001 Uen
CBC/ XRX ( Jan-Erik Thillberg) 2009-03-09 C
Prepared (also subject responsible if other) No.
Approved Checked Date Rev Reference
3.2.4 Earth Grounding RRU-N
Caution!
Do!Products not connected to ground risk being damaged by overvoltage or
overcurrent. Always connect products to ground according to instructions.
For general information about grounding principles, see document Grounding
Guidelines for RBS Site.
For information about grounding installation, see document Grounding Material
Installation Instruction.
To connect the grounding cable to the RRU-N, perform the following steps:
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. The serrated 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.