User Manual

14
Base Station Middle Section
The middle section of the BSR houses the WMTS (V3000), Remote Control Unit,
Upstream splitter tray and customer added backhaul interface. The three Monitoring
Modem Units (MMU) are located on the back side of the middle section, behind the
WMTS.
For a one-sector installation, install the MMU in the left-most slot. For a two-sector
installation, install the MMUs in the two left-most slots.
Router and/or Switch
Remote Control Unit (RCU)
WMTS
TP8 TP9 TP10 TP4
MMUs
WMTS
Figure 5: Middle Section Physical Layout – Front and Back Views
The test point cluster for the middle section includes:
 Test Point 4, which provides RF samples of the three downstream signals, as
delivered to the antennae from the Power Amplifiers (PA). All three downstream
signals are taken from their respective directional coupler sample ports, and are
combined together after signal attenuation, to be tested on Test Point 4.
Test Point 4 normally serves as a downstream signal level test point. It can also be
used as a common Upstream/Downstream point for connecting test modems.
 Test Points 8, 9, and 10 are located on the front of the Downconverters and provide
RF samples of the Upstream signal post-Downconverter.