Appendix a: rs-232 serial overview and commands – Velodyne SubContractor Series User Manual
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SC-1250 Amplifier User’s Manual - 19
AppENDIX A:
RS-232 SERIAL OVERVIEw AND COMMANDS
Introduction
This document outlines Velodyne’s SubContractor (SC) RS-232 protocol specification. This protocol indicates
how SC products receive run-time commands from devices such as Creston Universal Remote Controls.
Com Port Setup
Use standard communications settings: Baud Rate: 9600, Data Bits: 8, Parity: None, Stop Bits: 1
SC IN and OUT Port Pin Configuration
SC serial ports use a standard configuration that allows direct connection to a PC via a FEMALE to MALE serial
cable. It uses only three pins (Transmit, Receive, Ground).
The pin configurations are:
In:
Pin 2 = Transmit
Pin 3 = Receive
Pin 5 = Ground
oUT:
Pin 2 = Receive
Pin 3 = Transmit
Pin 5 = Ground
Runtime Command Format
Bye Number
Byte Description
Notes
0
‘#’
Header Character
1 to 3 or 4
Command and Parameter Data
3 to 4 ASCII characters see formats below
Case sensitive - CAPS ONLY!
4 or 5
‘$’
Termination Character (required or command is ignored)