Table of Contents
Advertisement
Chapter 4 Receiver Technical Specifications
4.2.6 OEM729 Interface Connectors
P1802 Main Connector 24-Pin Header
Signal
Signal
Pin
Name
Type
1
GND
PWR
3.3V
1
2
USER1
CMOS
3.3V
3
VARF
CMOS
3.3V
4
PPS
CMOS
5
3V3
PWR
6
3V3
PWR
1
On power up, if pin 2 is set LOW or not connected, COM1 will be configured as RS-232. If pin 2 is set high then
COM1 will be configured as RS-422
2
API functionality will not be available until the fourth quarter of 2017
OEM6 to OEM7 Integration Guide v1
V
V
IL
IH
Signal
Max
Min
Direction
(V)
(V)
-
-
-
Input/
0.7
2.1
Output
Output
-
-
Output
-
-
-
-
-
-
-
-
V
V
OL
Drive
OH
Max
Min
(mA)
(V)
(V)
-
-
-
0.4
2.9
4
0.4
2.9
4
0.55
2.4
16
-
-
-
-
-
-
Description
Ground reference
User GPIO.
May be accessed
2
through the API
Internal 10 kΩ
pulldown.
Variable Frequency
output
Edges can be
synchronized to the
GNSS time reference.
Internal 10 kΩ pullup
Pulse Per Second output
This signal defaults to
one pulse per second
but may be altered
across a wide range of
frequencies using
software commands.
Edges can be
synchronized to GNSS
time reference.
3.3 V ±5% supply input
3.3 V ±5% supply input
206
Advertisement
Table of Contents
