System Parameters
CPU：American import chip, 32 bit ATMEL ARM high speed processor, 72MHZ
Operating System：Nucleus/uCOS，10ms scheduling mechanism
Power supply：24VDC，Power consumption≤3W
Power protection: lightning protection, anti-fault access, isolation DC Sun Yang DCDC design, 2500V lightning protection
Dimensions: Volume (L*W*H): 180 x 108 x 77 (mm)
Installation: screwed or rail mounting
Environmental indicators：-40～85℃，5%～95%RH non-condensing, IP20 protection, three anti-paint protection
Hardware Watchdog: 1.5 seconds hardware watchdog protection system
Channel design: all channel power, signal apply isolated design; product come to use since 1997; with 17 years’ cumulative application

RS232/RS485 parameters
Number of channels：1 RS485，1 RS232
baud rate：1200～115200，the default 9600
Parity check：odd check, even check, without check（Default: without check）
Start bit：1bit
Data bits：8bits
Stop bits：1、2 bit（Default：1bit）
Communication protocol：MODBUS RTU(By default)、MODBUS ASCI protocol；
Select through configuration software
Defaulted communication mode：9600.N.8.1，Station No.：1

Parameter Name	Parameter Value
Type	communication IoT
Network	RS232
Other characteristics	IP20