Microsemi SyncSystem 4380A, Operation And Maintenance Manual

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DOC 4380A
4380A O & M Manual
77
098-00723-000
– Jul 2017 Revision 4.0
SyncSystem 4380A O&M Manual
- Real-Time GPS Data 1135
- TIC Average Data Port 2100
- TIC Raw Data Port 2101
A.6 USB Command Port Cable (94000-115200)
Connector DB9 (M)
Communications Parameters 115200,N,8,1
Type DTE
A.7 USB External Reference Port Cable (94001-5071A)
Connector DB9 (M)
Communications Parameters 9600,N,8,1
Type DTE
A.8 GPS Receiver
Antenna Connector TNC(F)
Output Voltage 0, 5, or 12VDC - (User Selectable), Default = 0
Input Frequency L1 (1575 MHz)
L2 (1272 MHz)
Antenna Cable Cable loss not to exceed 10 dB.
A.9 PPS / DC IRIG Module (4394A)
Characteristic Description
Number of outputs Four
Output connectors BNC(F)
Impedance
50 Ω
Signals PPS (2) DC IRIG (2) - Default
PPS
- Intervals Default – 1 PPS, Valid PPS values are 10M 1M, 100K, 10K, 1K, 100, 10,& 1
- Levels <0.8V low & >2.4V high into 50 Ω
- Pulse Width Default - ~100 µs +/-10 µs. Pulse width is variable in integer counts of 100
MHz clock period.
- Rise Time < 2 ns
- Jitter <100 ps
- Skew <+/-2 ns
DC IRIG Default - B000
- Types A000, A003, A007, B000, B003, B007, D002, E002, G002, H002
- Levels >2.4V = High, <.8V = Low
A.10 PPS ECL (4394A-ECL)
Characteristic Description
Number of outputs Two differential ECL
Output connectors TNC(F)
Load Impedance
100 Ω Line to Line (

10.0

)
Transition Time (20%
to 80 %) 700 ps max.
Voltage Output
High(V
OH
)
-1025 mv to -880 mv
Voltage Output
Low(V
OL
)
-1810 mv to -1620 mv