User's Manual

PAGE 12 61280.003L1-1B
4/12/99
This signal is used to align the antenna during installation and to
verify that the link is performing as designed. A third test point is
provided to monitor the transmitter output power during system
configuration.
The only connections that must be made in the field are a coax
connection between the BBP and the RFC and a coax connection
between the RFC and the antenna.
The “IF” connector provides the connection between the BBP and
the rack or mast-mounted RFC. (A blue 6-inch IF cable [ADTRAN
part number 3125.001@A] is provided for rack-mount systems.
ADTRAN does not provide IF cable for mast-mount systems.) The
“ANTENNA” connector provides the connection between the RFC
and the antenna.
A block diagram of the RFC functions is shown in the figure below.
2018
2058
SAW
333
2321
2281
AGC
Splitter
Splitter
AGC
PA
LPF
RF2
IF
2018
2058
Tx
Rx
Figure 1-9. RFC Function Block Diagram
The RFC unit is enclosed in a metal housing measuring
approximately 10.5" x 5.5" x 1" and may be mounted in a 1-U
nineteen-inch rack space or in a weather-tight enclosure suitable
SECTION 1