User's Manual Part 2

Test Equipment Setup – continued
MAY 2004 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU 6-61
PRELIMINARY
Set–up for ATP
Figure 6-17 and Figure 6-18 show the test set connections for ATP tests.
Figure 6-17: IS–95A/B ATP Test Set–up–
CyberTest, Advantest R3465, and Agilent 8935
Motorola CyberTest
TEST SETS Optimization/ATP SET UP
ÎÎÎÎ
ÎÎÎÎ
ÎÎÎÎ
Ï
RF
IN/OUT
SYNC MONITOR
EVEN SEC TICK
PULSE REFERENCE
FROM CSA CARD
FREQ MONITOR
19.6608 MHZ CLOCK
REFERENCE FROM
CSA CARD
Advantest Model R3465
INPUT 50Ω
GPIB CONNECTS
TO BACK OF UNIT
NOTE: The 30 dB directional coupler is not
used with the Cybertest test set. The TX
cable is connected directly to the Cybertest
test set.
RF OUT 50Ω
FREQ MONITOR
19.6608 MHZ CLOCK
REFERENCE FROM
CSA CARD
RF GEN
OUT
SYNC MONITOR EVEN
SEC TICK PULSE
REFERENCE FROM CSA
CARD
BNC
“T”
TO EXT TRIGGER CONNECTOR
ON REAR OF TEST SET
(FOR DETAILS, SEE
FIGURE B-15)
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
RF IN/OUT
OR
INPUT 50 Ω
RF GEN OUT,
RF OUT 50Ω,
OR RF IN/OUT
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
NOTE: IF BTS IS EQUIPPED
WITH DRDCS (DUPLEXED RX/TX
SIGNALS), BOTH THE TX AND RX
TEST CABLES CONNECT TO THE
DRDC ANTENNA CONNECTOR.
(SEE FIGURE 6-20.)
0–20 DB IN–LINE
ATTENUATOR
IMPORTANT:
WHEN PERFORMING LOW POWER TESTING BYPASS THE COUPLER AND
ATTENUATOR AND CONNECT DIRECTLY TO THE ANALYZER.
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Agilent 8935 Series E6380A (formerly HP 8935)
RF IN/OUT
HP–IB
TO GPIB
BOX
SYNC MONITOR
EVEN SEC TICK
PULSE REFERENCE
FROM CSA CARD
FREQ MONITOR
19.6608 MHZ CLOCK
REFERENCE FROM
CSA CARD
10 MHZ
REF OUT
Communications
System Analyzer
ANT
IN
cCLPA
ANTENNA
TX IN
RX OUT
RX MAINRX DIV TX1
HIGH POWER
CONNECTION
6