OEM617D Technical Specifications
Appendix C
OEM6 Family Installation and Operation User Manual Rev 12
140
Table 25: OEM617D Strobes
Table 26: OEM617D Strobe Electrical Specification
Strobes
Default
Behavior
Input/
Output
Factory
Default
Comment
a
Event1
(Mark 1)
Multiplexed
pin
Input
Leading
edge
triggered
Active
low
An input mark for which a pulse greater than 150 ns triggers certain
logs to be generated. (Refer to the MARKPOS and MARKTIME
logs and ONMARK trigger.) Polarity is configurable using the
MARKCONTROL
command. The initial state (level) of the signal is
HIGH.
Event2
(Mark 2)
Multiplexed
pin
Input
Leading
edge
triggered
Active
low
An input mark for which a pulse greater than 150 ns triggers certain
logs to be generated (see the MARK2POS and MARK2TIME logs).
Polarity is configurable using the
MARKCONTROL
command. The
initial state (level) of the signal is HIGH; To trigger an event (pull
the pin low) a current sink of 9mA may be required.
PV
(Position
Valid)
Dedicated
pin
Output
Active
high
Indicates a valid GNSS position solution is available.
VARF
(Variable
Frequency)
Multiplexed
pin
Output
Active
low
A programmable variable frequency output ranging from
0 -5 MHz (refer to the
FREQUENCYOUT
command)
RESETIN
Dedicated
pin
Input
Active
low
Reset LVTTL signal input from external system; active low, > 20 µs
duration
PPS
Dedicated
pin
Output
Active
low
A time synchronization output. This is a pulse where the leading
edge is synchronized to receiver-calculated GNSS Time. The
polarity, period and pulse width can be configured using
PPSCONTROL
command
a. The commands and logs shown in capital letters (for example, MARKCONTROL) are discussed in further detail in the
OEM6 Family Firmware Reference Manual
(OM-20000129).
Strobe
Sym
Min
(V)
Typ
(V)
Max
(V)
Current
(mA)
Conditions
Event1 (Mark 1)
Event2 (Mark2)
V
IL
0.8
VCC = 3.3 V compatible; 85
C
V
IH
2.0
VCC = 3.3 V; 85
C
PPS
V
OL
0.55
24
V
OH
2.3
24
PV
V
OL
0.55
10
V
OH
2.2
10
VARF
V
OL
0.55
24
V
OH
2.4
24
RESETIN
V
IL
0.8
V
IH
2.3