User Manual

Test Equipment Set–up – continued
Jan 2002
3-65
SC4812ET BTS Optimization/ATP — CDMA LMF
Set–up for Optimization/ATP
Figure 3-14 and Figure 3-15 show the test set connections for
optimization/ATP tests.
Motorola CyberTest
TEST SETS Optimization/ATP SET UP
ÏÏÏÏ
ÏÏÏÏ
ÏÏÏÏ
Ì
RF
IN/OUT
SYNC MONITOR
EVEN SEC TICK
PULSE REFERENCE
FROM CSM BOARD
FREQ MONITOR
19.6608 MHZ CLOCK
REFERENCE FROM
CSM BOARD
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
CSM BOARD
RF GEN
OUT
SYNC MONITOR EVEN
SEC TICK PULSE
REFERENCE FROM
CSM BOARD
BNC
“T”
TO EXT TRIGGER CONNECTOR
ON REAR OF TEST SET
(FOR DETAILS, SEE FIGURE F-3)
Figure 3-14: IS–95A/B Optimization/ATP Test Set–up, TRDC Shown – CyberTest and Advantest R3465
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
RX TEST
CABLE
GPIB
RF IN/OUT
OR
INPUT 50 Ω
RF GEN OUT
OR RF OUT 50Ω
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
COMMUNICATIONS
SYSTEM ANALYZER
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
CDMA
TIMEBASE
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 3-16.)
2O DB IN–LINE
ATTENUATOR
3