Andrew Wireless Innovations Group MRB-LMR User Manual
2. System Description
Page 12
MR Booster Manual (MN001808-1, 9/99)
2.4.10 Downlink Driver Amplifier (Optional)
An ultra-linear driver amplifier (not shown) provides more downlink gain or
increased drive for the MR Booster PAs. Contact technical support for
availability and details.
increased drive for the MR Booster PAs. Contact technical support for
availability and details.
Figure 2-6. Input/output panel
2.4.11 Input/Output Panel
All system inputs and outputs are accessible from the bottom panel of the
cabinet (see Figure 2-5). All RF connectors are 7-16 female bulkhead. All
unused RF ports have gasketed plates covering the connector cutout.
cabinet (see Figure 2-5). All RF connectors are 7-16 female bulkhead. All
unused RF ports have gasketed plates covering the connector cutout.
Control, alarm, and power connections are made via multi-conductor cables
routed through weatherproof glands. Unused glands are filled with removable
plugs.
routed through weatherproof glands. Unused glands are filled with removable
plugs.
NOTE: The customer is responsible for ensuring a weatherproof seal on
glands not set up in the factory.
glands not set up in the factory.
Following are the descriptions of the available I/O connections:
•
Repeater Duplexer or DL (optionally repeater DL only): Connected to
the repeater’s mobile coverage antenna port. It accepts downlink signals
from the repeater and outputs the uplink RF to the repeater.
from the repeater and outputs the uplink RF to the repeater.
NOTE: If the MR Booster must interface with a non-duplexed system,
this port can be used to route the downlink output from the repeater to the
booster.
this port can be used to route the downlink output from the repeater to the
booster.
•
Repeater UL (optional): This port is used only when the repeater has
non-duplexed mobile input and output. The uplink output is then routed
through this connector from the booster to the repeater.
through this connector from the booster to the repeater.
•
Mobile Duplexer: Connected to the mobile coverage antenna.