REFERENCE MANUAL - FTP Directory Listing - Trimble
REFERENCE MANUAL - FTP Directory Listing - Trimble
REFERENCE MANUAL - FTP Directory Listing - Trimble
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COPERNICUS <strong>REFERENCE</strong> BOARD 10<br />
Reference Board Schematic (page 3 of 3)<br />
Vmain<br />
J25<br />
1 2<br />
BOOT<br />
J27<br />
1 2<br />
MONITOR<br />
XRESET<br />
Low to reset<br />
Vmain<br />
BOOT<br />
Low to FLASH<br />
High to RUN<br />
Must be<br />
pulled high<br />
to run (R25)<br />
OPEN = FLASH<br />
MONITOR<br />
Low to start<br />
in MONITOR<br />
High for<br />
NORMAL start<br />
OPEN =<br />
NORMAL start<br />
XSTANDBY<br />
High to RUN<br />
Low to force<br />
to STANDBY<br />
OPEN = RUN<br />
Vant<br />
OPN<br />
MMBTA70LT1 transistor may<br />
be used for Q8 if 12-volt<br />
back voltage tolerance is<br />
not required.<br />
1<br />
SHRT<br />
J24<br />
Aux Cntl<br />
3<br />
LNA_XEN<br />
State OPN SHRT<br />
OPEN 1 1<br />
SHORT 0 0<br />
OK 0 1<br />
Undefined 1 0<br />
NOTE: OPEN and SHORT<br />
signal logic is not valid<br />
(indicates antenna short)<br />
when Antenna Power jumper<br />
is removed or LNA_XEN is<br />
high.<br />
Vmain<br />
2<br />
SW1<br />
1 2<br />
RESET_SW<br />
1<br />
2<br />
D7<br />
MMBD914<br />
R26<br />
3<br />
3<br />
2<br />
Q8<br />
MMBT404A<br />
J26<br />
2 1<br />
Antenna Power<br />
1<br />
Q10<br />
MMBT3906<br />
1<br />
1<br />
R28<br />
Q11<br />
MMBT3906<br />
R34<br />
6<br />
1<br />
Q7A<br />
FDG6316P<br />
2<br />
3<br />
Q7B<br />
FDG6316P<br />
4<br />
5<br />
3<br />
2<br />
3<br />
2<br />
J28<br />
3-pin header<br />
R25<br />
2<br />
R30<br />
Q9<br />
MMBT3904<br />
1<br />
J23<br />
2 1<br />
Aux Power<br />
3<br />
1<br />
2 3<br />
R31<br />
R33<br />
J22<br />
2 1<br />
Aux Output<br />
R29<br />
R32<br />
R27<br />
Figure 10.3 Copernicus Reference Board Schematic (Page 3)<br />
Copernicus GPS Receiver 101
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