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Test Set to GPS Time and Frequency Reference Receiver Connections
Chapter 3
50
Test Set to GPS Time and Frequency Reference
Receiver Connections
Figure 3-5 shows the connections to the Test Set when using a Symmetricom 58503A
GPS Time and Frequency Reference Receiver to establish a time base. This
configuration uses a GPS signal for the Test Set timebase instead of connecting to the
cell site SCT modules. See “GPS Time and Frequency Reference Receiver” on page 17 for
information on electing to use the 58503A.
When using the 58503A, make certain to set the REF IN Connected to field on the Test
Configuration Menu to GPS Receiver (see “Test Configuration” on page 39).
Figure 3-5 Symmetricom 58503A GPS Time and Frequency Reference Receiver
Connections
ESEC
Alarm
(TTL)
OUTPUTS
I/O
10 MHz OUT
ANTENNA
SERIAL PLATE
10 MHz
ESEC
PORT 1
OUT
PARALLEL PORT
AUDIO OUT
MODULATION
INPUT
AUDIO IN
AUDIO
MONITOR
OUTPUT
EXT SCOPE
TRIG IN
VIDEO
OUT
ANT IN DUPLEX
CHIP CLOCK
1.2288
MHz OUT
FRAME
CLOCK
SYNC IN
EVEN
SECOND
TRIG/QUAL
IN
10 MHz
REF OUT
REF IN
RF IN/OUT
IN
BASEBAND OUT
HI LO
QI
PARALLEL PORT
SERIA PORT
SERIA PORT
SERIA PORT
16X
CHIP CLOCK
19.6608
MHz OUT
REF IN
SYNC IN
EVEN SECOND