NavCom Sapphire Rev.J - Manual (Page 47)

Sapphire Technical Reference Manual Rev. J
47
System Control & Response Commands
This section detailed formats for
 Sapphire Input Commands (in alphabetical order according to their identifying mnemonics)
 Sapphire Output Messages (in alphabetical order according to their identifying mnemonics)
 Legacy Starlight Proprietary RTK Correction Messages

Other Correction Output and Input Message Types

Reserved place holders are used throughout this manual to maintain alignment
integrity with the master internal Interface Control Document maintained by
NavCom Engineering.
1 Sapphire Input Commands Detailed Formats
This section provides Sapphire Input Commands in alphabetical order according to their
identifying mnemonics. Each command is provided in a table with definitions of each command
parameter.
1.1 1PPS (ASCII)
SF-3050 Sapphire SF-3040
This command is used to set up and control the output of the programmable PPS signal. 1PPS
is available on COM1 pin 3 and Power pin 1 of the SF-3050. They are physically from the same
1PPS driver.
Command: [1PPS] polarity, width, interval, delayMS, delayNS
Parameter Definition
polarity Keyword that defines the polarity of the PPS pulse (NEGATIVE, POSITIVE)
width Sets the width of the PPS pulse (integer, nano-seconds) (25-1600000)
interval Sets the interval in between pulses (integer, milli-seconds) (1-32768)
delayMS Sets the delay of the PPS pulse from GPS time (integer, milli-seconds) (0-32768)
delayNS
Sets an additional delay of the PPS pulse from GPS time (integer, nano-seconds)
(0-999999)
Default: polarity = POSITIVE, width = 1000000 ns, interval = 1000 ms, delayMS = 0,
delayNS = 0

Polarity, width, interval, delayMS, delayNS are all optional arguments.
Examples: [1PPS] NEGATIVE,1500000,2000,50,30
Configures PPS to output a signal with a negative pulse that is 1.5ms wide, every
2 seconds, and delayed from GPS time by 50ms and 30ns