User's Manual

mBSC2500L-005-RUCM11
MBSC2500L-005-RUCM11 April 15, 2013
Page 33
4.4 Remote Node Installation
The remote unit is a 19” 4U equipment shelf. When loading the remote unit in a rack, make sure the
mechanical loading of the rack is even to avoid a hazardous condition. The rack should safely support the
combined weight of all the equipment and be securely anchored. Installing the remote unit in a room with
sufficient air circulation is recommended as the maximum ambient temperature for remote unit is 60°C.
remote unit install as same as HU device. Please refer to chapter 4.3.1.
4.4.1 Cable Connections
Attention
All the power switches must be switched off before cable installation.
 Avoid bundling signal cable and grounding cable/power cable, keep them separate.
 The power cable and RF inter-connection cables are supplied.
 Check open and short circuits before installing the power cable.
4.4.1.1 Coaxial Cable Connections
The simplex low-power RF interface between the RTM enclosure and the single-band RUM enclosures is
supported through RF QMA female connectors mounted on the enclosure panel. The duplex high-power RF
interface between the single-band RU enclosures and the BCM enclosure, and to the service antennas, is
supported through Nfemale connectors mounted on the enclosure panel.
4.4.1.1.1 BCM to Single-band RU
To connect the coaxial cable between BCM enclosure and single-band RU enclosure:
1. Obtain the required lengths of high performance, flexible, low loss 50Ω coaxial communication
cable for all coaxial connections.
2. Route the RU ANT and BCM N connector coaxial cable between the BCM enclosure and
single-band enclosure interface and cut to the required length.
3. Dress and secure cable.