User's Manual

Table Of Contents
32 UltraWAVE BTS Installation and Commissioning Guide, Release 6.5A
To connect two systems using RJ-48C cables, connect a crossover cable (see Figure 2-12) from the port
1 of the first chassis to port 0 of the second chassis.
2-5.5 Cabling External BTSs
The BTS can also be connected to daisy-chained BTSs as described in Section 2-5.4. These
daisy-chained BTSs will download their operating software from the BSC into their flash memory upon
reboot. Some additional software configuration is also required to setup the operations and
maintenance link to the OMC. This additional configuration of the OAM timeslots is required for
daisy-chained BTSs as discussed in Chapter Four.
2-6 Connecting Antennas
The cabinet assembly provides external access to the male N-type connectors for your external
antennas. Your antenna cable should terminate with a 90° N-type female connector or an N-type female
to male elbow adapter may be used for a more convenient connection to the cabinet. Insertion loss for
the elbow type of connector is typically between 0.1 and 0.2 dBm.
The antenna cabling for the BTS can be configured in several ways depending on a number of factors
including the number of TRXs, number of antennas and use of diversity. Your site specific configuration
was determined during the network planning stage of implementation.
In the subsequent sections, each RF configuration is detailed from the RF module connector to the
internal RF connector. Figure 2-13 the relationship between the three connectors. The RF modules are
connected to the internal RF connectors at the factory and are pre-configured for your BTS
configuration.
Table 2-10 Customer-Supplied Adapters and Cabling
Identity Cable Type Corresponding Cable Plug
Antenna cable (external) Coaxial N-type, Female
Adapter (optional) 90 degree elbow N-type Female to N-type Male
Note: The number of cables required depends on the ordered configuration of the BTS.
Figure 2-13 Antenna Cabling for Standard BTS Configurations
Internal RF Connectors
(with port number)
RF Module Connectors
External RF Connectors
(Top of Cabinet)
ANT
DIV
ANT
MAIN
PWR
FLT
ON LINE
ON
OFF
RX1
RX2
RX3
RX4
RX1
RX2
RX3
RX4
ANT
DIV
ANT
MAIN
PWR
FLT
ON LINE
ON
OFF
RX1
RX2
RX3
RX4
RX1
RX2
RX3
RX4
ANT
DIV
ANT
MAIN
PWR
FLT
ON LINE
ON
OFF
RX1
RX2
RX3
RX4
RX1
RX2
RX3
RX4
01 23 54
IW009304