Model: I-8142iW
 
 
Model: I-8144iW
I-8142iW/I-8144iW
2-Port Isolated RS-422/485 Module/
4-Port Isolated RS-422/485 Module
 
       
 

 

 
 
 
 
The I-8142iW provides 2-isolated RS-422/485 serial ports, while the I-8144iW provides 4-isolated RS-422/485 serial ports. It is equipped with 128 bytes hardware FIFO for each port, offers speed up to 115.2 K bps and supports RS-422 full-duplex communication.

In the harsh industrial environment, the on board ESD protection devices can divert this potentially damaging charge away from sensitive circuitry and protect the I-8142iW/I-8144iW from permanent damage.
 
     
   
     
 
 
 
Number of Ports I-8142iW = 2; I-8144iW = 4
Interface Isolated RS-422/485 (The RS-422 and RS-485 cannot be used simultaneously)
RS-422: TxD+, TxD-, RxD+, RxD-, GND
RS-485: Data+, Data-, GND
2-wire Cabling/4-wire Cabling Belden 8941 (2P twisted-pair cable)/ Belden 8942 (4P twisted-pair cable),
When different cables are used, the transmission distance may change
Transfer Distance Max. 1,200m for speed 9.6K bps; Max. 400m for speed 115.2K bps
Supports Max Devices Maximum of 256 devices. in a single RS-485 network without using a repeater
Controller 16C950 compatible
Speed: 115200 bps Max.
Data bit: 5, 6, 7, 8
Stop bit: 1, 1.5, 2
Parity: None, Even, Odd, Mark, Space
FIFO: Internal 128 bytes for each port
Self-Tuner Asic Inside Yes.
Interrupt Shared Interrupt
Bus Parallel I/O Module
4kV ESD Protection Yes, Contact for each port
Intra-module Isolation, Field to Logic 2500 Vrms
Connector Removable 20-pin Terminal Block
Software
Support interrupt driven software library
Support VxCOM library
LED Display
I-8142iW I-8144iW
1 LED as Power Indicator 1 LED as Power Indicator
2 LEDs as Communication (TxD) Indicators 4 LEDs as Communication (TxD) Indicators
2 LEDs as Communication (RxD) Indicators 4 LEDs as Communication (RxD) Indicators
Power Consumption
I-8142iW(Without Resistor) 0.3 A @ 5 V ,¡Ó 5 %
I-8142iW
(With 2 Resistors, 1/4 Watt, 120 Ohm 5%)
0.4A @ 5V ,¡Ó 5 %
I-8144iW(Without Resistor) 0.35A @ 5V ,¡Ó 5 %
I-8144iW
(With 4 Resistors, 1/4 Watt, 120 Ohm 5%)
0.6A @ 5V ,¡Ó 5 %
Environment
Operating Temperature -25 ~ 75 ¢XC
Storage Temperature -30 ~ 80 ¢XC
Humidity 10 ~ 95% RH, non-condensing
Dimensions
30mm x 85mm x 114mm (W x L x H) Detail
 
     
   
     
 
 
 
I-8142iW CR    2-Port Isolated RS-422/485 Module
I-8144iW CR    4-Port Isolated RS-422/485 Module
 
     
   
     
 
 
 
I-8112iW    2-Port Isolated RS-232 Module
I-8114W    4-Port RS-232 Module
I-8114iW    4-Port Isolated RS-232 Module
 
     
   
   
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