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COPERNICUS REFERENCE BOARD 10
Reference Board Jumper Table
Table 10.2
Copernicus Reference Board Jumper Table
Reference Designator Name
Description
J1 RF Input MCX Jack (Female Connector)50 Ohms
unbalanced
J4 XRESET Normal Operation: Jumper in place (connects
XRESET to VCC)
Reset Operation: Removing the Jumper and
asserting pin 2 of J4 low for greater than 100 usec
resets the unit. *Switch SW1 can also reset the
unit. Please see below.
SW1 Reset Switch Press the button resets the unit.
J5 VCC Normal Operation: Jumper in place (Applies
VCC to unit)
Test Mode: Jumper may be removed and ampere
meter may be inserted for current measurement.
J6 Vback Normal Operation: Jumper in place.(Applies
VBack to unit). The user can use VCC as the
STANDBY Supply.
J7 8-Pin Header See Table 10 for Reference Board pin Description.
J8 PPS Normal Operation: Jumper in place.(It outputs
PPS at pin 9 of both DB9 connectors of the Starter
Kit through J7 pin 6 of the Reference Board).
J9-J21 Reserved Reserved
J25 Reserved Reserved
Normal Operation: No Jumper (Run Mode).
J27 Reserved Reserved
J28 XSTANDBY Normal Operation: Jumper between pins 1 and
2 of the jumper J28 (Run Mode). *
Standby Mode: Jumper between pins 2 and 3 of
J28. *For external control, Jumper may be
removed and pin 2 of the jumper can be
externally controlled, e.g. via a host processor.
J22-24 Spare Spare driver transistor
J26
Antenna
Power
Normal Operation: Jumper in place.(Active
antenna powered from VCC).If a separate power
supply is desired for active antenna, jumper may
be removed and an external antenna power can
be applied to pin 2 of J26. *
* See Copernicus Reference Board Schematics in this chapter.
Note – See Table 3.1 for pin numbers. indicates pin 1.
Copernicus GPS Receiver 103