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| 型號： | RS485 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | RS-422 AND RS-485 APPLICATION NOTE |
| 中文描述： | RS - 422和RS - 485接口應(yīng)用筆記 |
| 文件頁數(shù)： | 12/18頁 |
| 文件大小： | 986K |
| 代理商： | RS485 |
RS232-RS485 Convertor Manual V1.02 28/06/01
3
2.1 RS-232 to RS-485 Status LED Indicators
Figure 4
No
1
LED Colour
Red
Status Description
Indicates that the PC has enabled RS-485 transmission.
This means that the RS-485 driver has been enabled allowing
the convertor to drive the RS-485 line to the remote system.
Indicates that the remote RS-485 system is transmitting data
to the PC through the convertor. The LED will flash when
data is being transmitted.
PC is transmitting data to the remote RS-485 system.
The LED will flash when data is being transmitted.
2
Yellow
3
Green
Figure 5
2.2 Input Power Supply Requirements
The power supply requirements for the
‘RS-232 to RS-485 Convertor Module’
are detailed
in the table below. The current drawn by the module from the external power supply varies
from a Standby Current when no data transfer is taking place to an Active Current when data
transfer is taking place.
Parameter
Values
Min
Typical
Standby Current
10
Active Current
Supply Voltage
8.3
9.0
Units
mA
mA
V DC
Max
1000
9.9
Figure 6
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RS-485 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:RS-422 AND RS-485 APPLICATION NOTE |
| RS485-232 | 制造商:PR 功能描述: |
| RS485-C1(AS) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:RS232/RS485 CONV (AS) |
| RS485-C1(EU) | 制造商:Equinox Technologies 功能描述:RS232/RS485 CONV (EU) |
| RS485-C1(UK) | 制造商:Equinox Technologies 功能描述:RS232/RS485 CONV (UK) |
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