User's Manual

MA 2000 System Elements
BTS/BDA Side Elements
MA 2000 Installation and Configuration Guide 12
RIU Rear Panel
The rear-panel contains connections to the BTS/BDA devices, BUs, Controller and Power.
Figure 2-3. RIU Rear Panel showing the RF Connection
Table 2. RIU Rear Panel Connectors
Connector Description
UL/DL and DUPLEX BTS interface (via BTSC) - UL/DL and Duplex
BDA interface (via BDAC) – Duplex interface only
BU UPLINK/DOWNLINK BU UL/DL connections, where an 8-port BU consists of two modules and
therefore would require two pairs UL and DL connections.
RS485 MA 410/430 controller connection. Connects to the controller rear panel
RS485 connector (either port 1 or 5 on the controller).
PWR DC power connection – 20 to 48 VDC
BU connections; one UL and one DL
connection for every group of four
ports (single OPTM) on the BU.
Power
MA Controller
connection
BTS/BDA
sim
p
lex
BTS/BDA duplex
connections