ViewSonic LDS135-151 - RS-232 Protocol; RS-232 Hardware Specification; RS-232 Communication Setting

93
RS-232 Protocol
This document describes the hardware interface and soware protocols of RS-232
serial communicaon between the ViewSonic LED Display and computers or control
systems.
RS-232 Hardware Specicaon
ViewSonic RS-232 serial port on the lower le side:
1. Connector type: DB 9-Pin Female
2. Use of straight-through parallel cable for connecon
3. Pin Assignment:
Female DB 9-Pin Pin # Signal Remark
1 NC
2 TXD Output from Display
3 RXD Input to Display
4 NC
5 GND GND
6 NC
7 NC
8 NC
9 NC
frame GND
RS-232 Communicaon Seng
- Baud Rate Select: 115200bps (xed)
- Data bits: 8 bits (xed)
- Parity: None (xed)
- Stop Bits: 1(xed)