Bộ chuyển đổi RS-232 sang RS-485 ICP DAS I-7520 CR
Feature
Introduction
Most industrial computer systems provide standard RS-232 serial ports. Though widely accepted, RS-232 has limited transmission speed, range, and networking capabilities. The RS-485 standards overcome these limitations by using differential voltage lines for data and control signals, which transparently converts RS-232 signals into isolated RS-485 signal with no need to change any hardware or software. The I-7520 lets you easily build an industrial grade, long-distance communication system using standard PC hardware.
The design of the isolation between the I-7520/A and the I-7520R/AR is different. If the user wants to supply power from the PLC/PC, the I-7520R/AR should be used, otherwise the isolation will be broken.
Application
How to choose the isolation side ?
1. Most circuit damage is caused by the noise from power input.
2. Consider the devices connected to which side are more expensive, choose this side isolated.
I-7520: RS-232 isolated (devices at RS-232 side are protected)
I-7520R: RS-485 isolated (devices at RS-485 side are protected)
I-7520A: RS-232 isolated (devices at RS-232 side are protected)
I-7520AR: RS-422/485 isolated (devices at RS-422/485 side are protected)
I-7520 and I-7520R
I-7520A and I-7520AR
Specifications
Isolation | |
---|---|
Intra-module Isolation | I-7520 & I-7520A: 3000 VDC on RS-232 side I-7520AR: 3000 VDC on RS-422/485 side I-7520R: 3000 VDC on RS-485 side |
EMS Protection | |
---|---|
ESD (IEC 61000-4-2) | Yes |
LED Indicators | |
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Status | 1 x Power and Communication |
COM Ports | |
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Ports | I-7520/I-7520R: 1 x RS-232 Input (Master), 1 x RS-485 Output (Slave) I-7520A/ I-7520AR: 1 x RS-232 Input (Master), 1 x RS-422/485 Output (Slave) |
Baud Rate | 300 ~ 115200 bps |
Power | |
---|---|
Input Range | +10 VDC ~ +30 VDC (Non-isolated) |
Consumption | 1.2 W |
Mechanical | |
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Casing | Plastic |
Dimensions (mm) | 72 x 35 x 118 (W x L x H) |
Installation | DIN-Rail Mounting |
Environment | |
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Operating Temperature | -25 ~ +75 °C |
Storage Temperature | -30 ~ +75 °C |
Humidity | 10 ~ 90% RH, Non-condensing |
Download
Ordering Information
I-7520 CR | Isolated RS-232 to RS-485 Converter (Blue Cover) (RoHS) |