TRAK MODEL 9100 MODULAR FREQUENCY/TIME SYSTEM
2-5
TM4400013
Rev.
D
2-8
MODULE SET UP
Distribution modules have switches or configuration headers for selection of output signals. If known in advance,
each system is factory configured for a specific customer application. Otherwise, the modules are set to factory
default.
Adhesive labels with signal names are provided with each system to attach to the rear panel. This provides a
visual indication of the signal selected on the corresponding distribution module. For example if A3 is a DDM
and the module is configured for 1 PPS distribution, place the 1 PPS label below BNC connector J8.
2-8.1
DIGITAL DISTRIBUTION MODULE (DDM), (A3-A8)
The DDM provide four outputs of the selected reference signal. Each DDM can be set with an internal switch to
output four outputs each of the three references. The DDM requires no user adjustments or configuration set-up
other than selection of the required reference. Refer to Figure 2-2 for rotary switch location and Table 2-4 for
DDM output selector switch settings.
Figure 2-2, DDM Output Selector Switch Location
Table 2-7, DDM Output Signal Switch Positions
SW1 Setting
Ref. Output
0 1
PPS
1 Composite
2 5
MPPS
NOTE: Factory default setting for the DDM is 1 PPS.
OUTPUT
SELECT
SWITCH
SETTING
S1 Output
SET
0 1 PPS
1 Composite
2 5 MPPS
SW1
DDM
Содержание TRAK 9100
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Страница 109: ...TRAK MODEL 9100 MODULAR FREQUENCY TIME SYSTEM H 1 TM4400013 REV D APPENDIX H CE Compliance Certificate ...
