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Appendix G – On-Board Jumper Settings
Sl
Purpose
No.
4
IRIG-TTL
or
PPM/PPH
Selection
5
GPS PPS
Debug
Selection
6
WDI
Enable
Jumper
7
IRIG-J or
User-Port
Selection
8
Ethernet
FX or TX
Selection
9
Console
Output
Selection
10
Differential
PPS
CPU/Mother Board Jumper Table
Jumper
Position
Legend
JPR701
1-2
J704
Mount
Unmount
J6
1-2
2-3
CN18
1-2
2-3
CN3
1-2
2-3
JP1
Mount
Unmount TX is selected
Main
Mount
Unmount Console
J2
Mount
Selection
Description
3--> DGND )
PPM/PPH/TTL
Selection of
IRIG-
TTL/PPM/PPH
Source.
GPS PPS
Used for GPS-
TEST
PPS debugging
Normal
operation
WDI Enabled
WDI Control
Jumper
WDI Disabled
COM 3 Port is
PIC or CPU as
configured as
COM3 Port
CPU COM Port
COM 3 Port is
configured as
PIC COM
PORT for IRIG-
J IN
TX is selected
Fiber or Copper
Ethernet Port
FX is selected
selection
FX is selected
Disable Auto
Negotiation in FX
mode
Console
To select the
enabled
COM port as
console port
disabled
Enable the
For enabling or
differential
disabling
termination
differential
228
Default
jumper
setting
1-2
Unmount
1-2
1-2
1-2
Unmount
Mount
Unmount
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