OEM729 Strobe Specifications

OEM729 Strobes Description

Strobes

Input/Output

Factory Default

Comment

ERROR

Output

Active high

Normally low.
A high output on this pin indicates that the receiver is in an error state. For information about the cause of the error, log the RXSTATUS log.

Event1

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.

Event2 (Mark 2)

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 MARK2POS and MARK2TIME logs.) Polarity is configurable using the MARKCONTROL command.

Note: Event2 is the default behavior for pin 7 of connector P1804. The secondary behavior for pin 7 is COM3_Rx. If COM3 is enabled, the Event2 input is disabled.

PPS

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 the PPSCONTROL command

PV (Position Valid)

Output

Active high

Indicates a valid GNSS position solution is available.

nRESET_IN

Input

Active low

Reset signal input from external system; active low, 50 ms duration. Hold the RESETIN pin low for >150 ms after power is applied

VARF (Variable Frequency)

Output

Active low

A programmable variable frequency output ranging from 0 Hz to 50 MHz (refer to the FREQUENCYOUT command)

 

OEM729 Strobe Electrical Specifications

Strobe

Sym

Min
(V)

Max
(V)

Current
(mA)

ERROR

VOL

 

0.4

4

VOH

2.9

 

Event1 (Mark )

Event2 (Mark2)

VIL

 

0.7

-

VIH

2.1

 

PPS

VOL

 

0.4

16

VOH

2.4

 

PV

VOL

 

0.4

4

VOH

2.9

 

nRESET_IN

VIL

 

0.8

-

VIH

2.3

 

VARF

VOL

 

0.4

4

VOH

2.9

 

 

OM-20000167 v12

July 2019

Email comments to NovAtel_TPUBS@NovAtel.com

7.07.01 / OM7MR0701RN0000
PP7 07.07.00 / EP7PR0700RN0000
7.06.02 / OA7CR0602RN0000