I-9144i
4-port Isolated RS-422/485 Module
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| Model: I-9144i |
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- Includes 4 Isolated RS-422/485 Ports
- +/-4 kV ESD Protection on Each Port
- Baud Rate of up to 115200 bps
- LED Indicators for TxD, RxD and Power Status
- Internal 128-byte Hardware FIFO for Each Port
- 2500 VDC Isolation
- Built-in Self-Tuner or Auto-Direction Control
- Low Power Consumption
- RoHS Compliant & Halogen Free
- Fire-retardant Materials Used (UL94-V0 Level)
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The I-9144i provides 4 isolated RS-422/485 serial ports. Each port is equipped with a 128-byte hardware FIFO and offers speeds up to 115.2 kbps with support for RS-422 full-duplex communication.
In the harsh industrial environment, the onboard ESD protection devices can divert this potentially damaging charge away from sensitive circuitry and protect the I-9144i from permanent damage.
The serial communication modules are designed for use with intelligent devices like bar code readers, serial printers, intelligent sensors, instrumentation equipment, computers, and almost any device with an RS-422/485 port. |
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Factory, Building and Home Automation |
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- Supports interrupt driven software library
- Supports VxCOM library
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| Model |
I-9144i |
| RS-422/485 Interface |
| Ports |
4 |
| Interface |
Isolated RS-422/485 (The RS-422 and RS-485 can not be used simultaneously)
RS-422: TxD+, TxD-, RxD+, RxD-, GND
RS-485: D+, D-, GND |
| 4-wire Cabling |
Belden 9841 (2P twisted-pair cable)/Belden 9842 (4P twisted-pair cable),
If different cables are used, the transmission distance may change |
| Transfer Distance |
Max. 1,200 m at 9.6 kbps;
Max. 400 m at 115.2 kbps |
| 4-wire Cabling |
A max. of 256 devices in a single RS-485 network without using a repeater |
| Controller |
16C850 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 |
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| Model |
I-9144i |
| LED Display |
| System LED Indictors |
1 LED as Power Indicator |
| I/O LED Indicator |
4 LEDs as TxD Indicators;
4 LEDs as RxD Indicators |
| Isolation |
| Intra-module Isolation, Field to logic |
2500 VDC |
| EMS Protection |
| ESD(IEC 61000-4-2) |
±4 kV Contact for Each Channel |
| Power |
| Power Consumption |
3 W (With 2 Resistors,1/4 Watt, 120 Ω 5%) |
| Mechanical |
| I/O Connector |
Removable 20-Pin Terminal Block |
| Dimensions (W x L x H) |
31 mm x 134 mm x 144 mm |
| Environment |
| Operating Temperature |
-25 ~ +75°C |
| Storage Temperature |
-40 ~ +85 °C |
| Humidity |
10 ~ 90% RH, non-condensing |
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| I-9144i CR |
4-port Isolated RS-422/485 Module (RoHS) |
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