ZXSDR BS8900 Hardware Manual
T
ABLE
24 RSU P
ANEL
I
NTERFACE
D
ESCRIPTION
Interface
Entity at end
A
Entity at end
B
Description
ANT1(TX/RX)
RSU
Transceiver
antenna
Connected to
transceiver an-
tenna of trans-
mit/receive
main set chan-
nel
ANT2(RX)
RSU
Receive
antenna
Connected
to receive
diversity
channel
antenna
Rx out
RSU
Frequency
expansion RSU
Frequency
expansion
output
interface,
outputting main
set received
signals
Rx in
Frequency
expansion RSU
RSU
Frequency
expansion
input interface,
inputting
diversity
received signals
TX1 RX1
RSU
BBU
or the
upper level
cascaded RSU
Connected to
the
CPRI
optical
interface of BBU
or upper level
cascaded RSU
TX2 RX2
RSU
Lower level
cascaded RSU
Connected to
the CPRI optical
interface of
the lower level
cascaded RSU
DBG
RSU
PC and test
device (test
board)
Debug interface
and test
interface
TEST
RSU
Testing device
Tx Test signal
interface
MON
RSU
Peripheral
Provides input
interface for
four channels
of dry contact
signals and
RS 485
environment
monitoring
interface
38
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