User Manual

ADCP-75-192 • Issue 1 • December 2005 • Section 2: Description
Page 2-29
 2005, ADC Telecommunications, Inc.
7 RADIO ACCESS NODE (RAN) SPECIFIC MODULES
This section describes the various controls and indicators for RAN specific modules.
7.1 Ran Down Converter (RDC or RDC2)
The RAN Down Converter (RDC), shown in Figure 2-28, takes RF signals from a primary and
secondary antenna and down converts the signals into IF. Signals are input into the card over
coax cable terminated with SMA connectors on to the front panel of the module. The
references for the RDC user interface are shown in Table 2-19. Two versions of the RDC, the
RDC and RDC2, are available.
(2) FAULT LED
(4) P OWER LED
(3) CHANNEL 2
(1) CHANNEL 1
Figure 2-28. RDC Front Panel
Table 2-19. RDC User Interface
REF
No.
USER INTERFACE
DESIGNATION
DEVICE FUNCTIONAL DESCRIPTION
1 Channel 1 RF
Connector
SMA connector RF input for Channel 1
2 Fault LED Single-colored LED
(Red)
Status indicator turns red when module has
failed. Indicator is lit during start-up until
the module has initialized. Indicator will
blink after module receives a system clock
and is awaiting initialization
3 Channel 2 RF
Connector
SMA connector RF input for Channel 2. Used in diversity
systems or 3/4 bands systems (future)
4 Power LED Single-colored LED
(Green)
Status indicator turns green when module
has power.