Installation Instructions

Test Equipment and LMF Connection – continued
DEC 2000
7-9
SCt300 BTS Hardware Installation, ATP and FRU Procedures
PRELIMINARY
Equipment warm-up
Warm-up BTS equipment site for a minimum of 60
minutes prior to the BTS ATP. This assures BTS site
stability and contributes to test accuracy.
(Time spent running initial power–up, hardware/firmware
audit, and BTS download counts as warm–up time).
IMPORTANT
*
Warm-up test equipment for a minimum of 60 minutes
prior to their use in the BTS ATP. This assures maximum
equipment measurement accuracy and consistency during
testing.
IMPORTANT
*
Connecting Test Equipment to
the BTS and LMF
All test equipment is controlled by the LMF via a Serial Cable/GPIB
bus. The LMF expects each piece of test equipment to have a factory-set
GPIB address. If there is a communications problem between the LMF
and any piece of test equipment, you should verify that the GPIB
addresses have been set correctly.
In the following procedure and illustrations, typical DIP
switch positions and/or configurations are shown. If
required, refer to the test equipment OEM user manuals for
additional information.
NOTE
Connecting Advantest R3465 to
BTS
Follow the procedure in Table 7-3 to connect the Advantest R3465 to the
BTS. Refer to Figure 7-9.
Table 7-3: Interfacing test equipment to the BTS
Step Action
1 Connect an SMA/BNC coax cable between the following points:
– BNC on the Advantest CDMA TIMEBASE IN port.
– SMA on the 19 MHz port on the diagnostic access area of the BTS.
2 Connect an SMA/BNC cable between the following points:
– BNC to one end of the BNC “T.”
– SMA on the 2 Sec port on the diagnostic access area of the BTS.
7