RTD Embedded Technologies, Inc.
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13
GPS25162HR/GPS35162HR User’s Manual
BDM-610020158 Rev A
Table 4: CN7 in UART RS-232 Mode
Pin Name Pin # Pin # Pin Name
DSR
2
1
DCD
RTS
4
3
RxD
CTS
6
5
TxD
RI
8
7
DTR
GND
10
9
GND
CN4: Utility Connector
CN4 is the Utility connector. It contains a buffered 1 pulse-per-second with a 6 ns maximum delay, RS-232 level GPS output data and an
external battery connector for GPS module.
Table 5: CN4 Utility
Pin Name Pin # Pin # Pin Name
GND
2
1
RSVD
1PPS
4
3
RSVD
GPS TX
6
5
GND
GND
8
7
External Battery
GND
10
9
RSVD
CN5: GPS Antenna Connector
The GPS35162 provides an MCX connector for the GPS antenna.
Connector Part #:
SPC Technology 8589-0853
Example Mating Connector:
Amp
901-9877-RFX
Note:
CN8 is for Factory Use only
3.3.3
J
UMPERS
JP1: GPS Antenna Bias
JP1 is used to select the antenna bias level. The available bias levels are shown in Table 6.
Table 6: JP3 Settings
Setting Description
Notes
1
–
2
5V Bias Antenna
2
–
3
3.3V Bias Antenna
Factory default
Open
Passive Antenna
JP2: 1 PPS on Carrier Detect
JP2 is used to connect/disconnect the 1 PPS signal from UART 1 carrier detect. The options are shown in Table 7.
Table 7: JP4 Settings
Setting Description
Notes
1
–
2
1PPS is connected to the UART 1 CD
Factory default
2
–
3
1PPS is disconnected from UART 1 CD
3.3.4
LED
S
D1: GPS Fix LED
D1 shows if the GPS has a 3D fix. The LED will be on if the GPS has a fix.
D2: 1PPS LED
D2 shows the status of the GPS’s 1PPS signal.
