User Manual

Test Equipment Setup continued
Jan 2002
3-63
SC4812ET BTS Optimization/ATP CDMA LMF
TEST SETS TRANSMIT (TX) SET UP
NOTE: THE HP8921A AND ADVANTEST
R3465 CANNOT BE USED FOR TX
CALIBRATION. A POWER METER MUST BE
USED.
Figure 3-12: TX Calibration Test Setup Using Power Meter
TO
MPC
TO LPA
TRUNKING
MODULE
RS232GPIB
INTERFACE BOX
INTERNAL PCMCIA
ETHERNET CARD
GPIB
CABLE
UNIVERSAL TWISTED PAIR (UTP)
CABLE (RJ45 CONNECTORS)
RS232 NULL
MODEM
CABLE
S MODE
DATA FORMAT
BAUD RATE
GPIB ADRS G MODE
ON
BTS
INTERNAL
TX
CABLE
CDMA
LMF
DIP SWITCH SETTINGS
10BASET/
10BASE2
CONVERTER
LAN
B
LAN
A
RX
ANTENNA
CONNECTOR
FREQ
MONITOR
SYNC
MONITOR
CSM
INTERNAL
RX
CABLE
TX
ANT
CPLD
RX
BTS
CPLD
TRDC
TX
BTS
CPLD
RX
ANT
CPLD
TX
ANTENNA
CONNECTOR
50
TERM
.
TX TEST
CABLE
DIRECTIONAL
COUPLER
(30 DB)
100WATT (MIN.)
NONRADIATING
RF LOAD
TX TEST
CABLE
* BLACK RECTANGLES
REPRESENT THE RAISED
PART OF SWITCHES
NOTE: IF BTS IS EQUIPPED
WITH DRDCS (DUPLEXED
RX/TX SIGNALS), CONNECT
THE TX TEST CABLE TO
THE DRDC ANTENNA
CONNECTOR.
POWER
SENSOR
POWER METER
2O DB INLINE
ATTENUATOR
3