User's Manual Part 2

Test Equipment Setup – continued
6-62 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU MAY 2004
PRELIMINARY
Figure 6-18: IS–95A/B ATP Test Setup – HP 8921A
RF OUT
ONLY
Hewlett Packard Model HP 8921A W/PCS Interface
(for 1900 MHz)
GPIB
CONNECTS
TO BACK OF
UNITS
SYNC MONITOR
EVEN SEC TICK
PULSE REFERENCE
FROM CSA CARD
FREQ MONITOR
19.6608 MHZ CLOCK
REFERENCE FROM
CSA CARD
TEST SETS Optimization/ATP SET UP
RF
IN/OUT
GPIB
CONNECTS
TO BACK OF
UNIT
SYNC MONITOR
EVEN SEC TICK
PULSE REFERENCE
FROM CSA CARD
FREQ MONITOR
19.6608 MHZ CLOCK
REFERENCE FROM
CSA CARD
Hewlett Packard Model HP 8921A
(for 800 MHz)
RF
IN/OUT
DUPLEX
OUT
RS232–GPIB
INTERFACE BOX
GPIB
CABLE
RS232 NULL
MODEM
CABLE
S MODE
DATA FORMAT
BAUD RATE
GPIB ADRS G MODE
ON
BTS
CDMA
WinLMF
DIP SWITCH SETTINGS
LAN
B
LAN
A
RX TEST
CABLE
GPIB
PCS INTERFACE
INPUT/OUTPUT
PORTS
FREQ
MONITOR
SYNC
MONITOR
CSA
50 Ω
TERM
.
TX TEST
CABLE
DIRECTIONAL
COUPLER
(30 DB)
100–WATT (MIN.)
NON–RADIATING
RF LOAD
TX TEST
CABLE
* BLACK RECTANGLES
REPRESENT THE RAISED
PART OF SWITCHES
EXT
REF IN
EVEN
SECOND/
SYNC IN
HP PCS
INTERFACE*
0–20 DB IN–LINE
ATTENUATOR
* FOR 1900 MHZ
ONLY
RF OUT ONLY
RF IN/OUT
NOTE:
FOR 800 MHZ TESTING, CONNECT CABLES TO THE
HP 8921A AS FOLLOWS:
RX TEST CABLE TO DUPLEX OUT
TX TEST CABLE TO RF IN/OUT
Communications
System Analyzer
ANT
IN
cCLPA
ANTENNA
TX IN
RX OUT
RX MAINRX DIV TX1
Signal
Generator
6