User's Manual

Table Of Contents
In–Service Calibration – continued
H-24 1X SC 4812T Lite BTS Optimization/ATP FEB 2005
PRELIMINARY
TEST SETS TRANSMIT (TX) SET–UP
TO
MPC
TO LPA
TRUNKING
MODULE
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
INTERNAL
TX
CABLE
CDMA
LMF
DIP SWITCH SETTINGS
10BASET/
10BASE2
CONVERTER
LAN
B
LAN
A
GPIB
RF IN/OUT
OR INPUT 50
FREQ
MONITOR
SYNC
MONITOR
CSM
INTERNAL
RX
CABLE
TX
ANT
CPLD
RX
BTS
CPLD
TRDC
TX
BTS
CPLD
RX
ANT
CPLD
COMMUNICATIONS
SYSTEM ANALYZER
* 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 BTS CPLD
CONNECTOR.
RX
ANTENNA
CONNECTOR
TX
ANTENNA
CONNECTOR
2O DB
IN–LINE
ATTENUATOR
ANTENNAANTENNA
Hewlett Packard Model HP 8921A W/PCS Interface
(for 1900 MHz)
GPIB
CONNECTS
TO BACK OF
UNITS
RF
IN/OUT
GPIB
CONNECTS
TO BACK OF
UNIT
Hewlett Packard Model HP 8921A
(for 800 MHz)
RF
IN/OUT
Advantest Model R3465
INPUT 50
GPIB CONNECTS
TO BACK OF UNIT
Figure H-12: TX Calibration Test Set–up – HP 8921A/600 w/PCS Interface (1.9 GHz),
HP 8921A/600 (800 MHz), and Advantest R3465 (IS–95A/B only)
H