Introduction To Serial Port For Lp-9X2X - ICP DAS USA LinPAC AM335 Series User Manual

2.7.4. Introduction to Serial port for LP-9x2x

Figure 2.7.4-1 illustrates the ports contained on the LP-9821. The information is organized as
follows:

ttyO4─ Internal communication with the I-97KW modules in slots

ttyO5 ─ RS-232/RS-485; Non-isolation; Console

ttyS0 ─ RS-485 (D2+, D2-; self-tuner ASIC inside)

ttyS1 ─ RS-232/RS-485
(RXD, TXD, CTS, RTS and GND for RS-232, Data+ and Data- for RS-485)

ttyS34 ─ RS-232 (RXD, TXD, CTS, RTS, DSR, DTR, CD, RI and GND)
Device name
ttyO4
ttyO5 (RS-232/485/console)
ttyS0 (RS-485)
ttyS1 (RS-232/485)
ttyS34 (RS-232)
AM335X-PAC Series User Manual
Copyright © 2021 ICP DAS Co., Ltd. All Rights Reserved.
Definition in LP-9x21 SDK
COM3 (LP-9421/9821 only)
COM36 (LP-9421/9821 only)
Figure 2.7.4-1. Serial port mapping on the LP-9821
COM1
None
COM2
version 2.0.4
Default baudrate
115200
115200
9600
9600
9600
Page: 47
E-mail: service@icpdas.com