User's Manual

Test Equipment Set–up – continued
PRELIMINARY
1X SCt4812ET Lite BTS Optimization/ATP
08/01/2001
3-52
POWER METER
TEST SETS TRANSMIT (TX) SET UP
RS232–GPIB
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
100–WATT (MIN)
NON–RADIATING
RF LOAD
TX
TEST
CABLE
CDMA
LMF
DIP SWITCH
SETTINGS*
2O DB
IN–LINE
ATTENUATOR
10BASET/
10BASE2
CONVERTER
LAN
B
LAN
A
TX ANTENNA GROUP
OR TX RFDS DIRECTIONAL
COUPLERS
TX
TEST
CABLE
POWER
SENSOR
FW00095
NOTE: THE HP8921A AND ADVANTEST
CANNOT BE USED FOR TX CALIBRATION. A
POWER METER MUST BE USED.
Figure 3-16: TX Calibration Test Setup HP 8921A and Advantest
DIRECTIONAL COUPLER
(30 DB)
* BLACK PORTION OF THE
DIAGRAM REPRESENTS THE
RAISED PART OF THE
SWITCH
50 Ω
ΤERM.
3