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シリアル通信電圧仕様

UARTとRS-232Cはロジックが逆なので注意

Programmable logic
Logic is fixed
 UART : High = 1 , Low = 0
-  TTL
- Data Logger C-CR1000X C-CR6 C-CR300/310 C-CR1000 C-CR800 C-CR3000
- Port COM1-4 COM1-2,COMU1-U11 non COM1-4 COM1-2 COM1-4
Output High = +5V Typical High = +5V Typical High = +5V Typical High = +5V Typical High = +5V Typical
Low = +0V Typical Low = +0V Typical Low = +0V Typical Low = +0V Typical Low = +0V Typical
Input High > +3.5 Typical High > +3.5 Typical High > +3.8 Typical High > +3.8 Typical High > +3.8 Typical
Low < +1.5 Typical Low < +1.5 Typical Low < +1.2 Typical Low < +1.2 Typical Low < +1.2 Typical
-  LVTTL
- Port COM1-4 COM1-2,COMU1-U11 non non non non
Output High = +3.3V Typical High = +3.3V Typical
Low = +0V Typical Low = +0V Typical
Input High > +2.5 Typical High > +2.5 Typical
Low < +0.8 Typical Low < +0.8 Typical
 RS-232 : High = 0 , Low = 1
- Data Logger C-CR1000X C-CR6 C-CR300/310 C-CR1000 C-CR800 C-CR3000
- Port COM1-2 COMU1-U11 C1&2 COM1-4 COM1-2 COM1-4
Output High = +5V Typical High = +5V Typical High = +5V Typical High = +5V Typical High = +5V Typical High = +5V Typical
Low = +0V Typical Low = +0V Typical Low = +0V Typical Low = +0V Typical Low = +0V Typical Low = +0V Typical
Input High > +3.5 Typical High > +3.5 Typical High > +3.3V Typical High > +3.8 Typical High > +3.8 Typical High > +3.8 Typical
Low < +1.5 Typical Low < +1.5 Typical Low < +0V Typical Low < +1.2 Typical Low < +1.2 Typical Low < +1.2 Typical
- Port COM3-4 COM1-2 RS-232 RS-232 RS-232 RS-232
Output High = +6V Typical, +5V Minimum High = +6V Typical, +5V Minimum High = +5.4V Typical, +5V Minimum High = +5.4V Typical, +5V Minimum High = +5.4V Typical, +5V Minimum High = +5.4V Typical, +5V Minimum
Low = -7V Typical, -5V Minimum Low = -7V Typical, -5V Minimum Low = -5.4V Typical, -5V Minimum Low = -5.4V Typical, -5V Minimum Low = -5.4V Typical, -5V Minimum Low = -5.4V Typical, -5V Minimum
Input High > +1.9V Typical, +2.4V Maximum High > +1.9V Typical, +2.4V Maximum High > +1.7V Typical, +2.3V Maximum High > +1.8V Typical, +2.4V Maximum High > +1.8V Typical, +2.4V Maximum High > +1.8V Typical, +2.4V Maximum
Low < +1.4V Typical, +0.8V Minimum Low < +1.4V Typical, +0.8V Minimum Low < +1.4V Typical, +.7V Minimum Low < +1.5V Typical, +0.8V Minimum Low < +1.5V Typical, +0.8V Minimum Low < +1.5V Typical, +0.8V Minimum
- Port RS-232/CPI RS-232/CPI
Output High = +5.4V Typical, +5V Minimum High = +5.4V Typical, +5V Minimum
Low = -5.4V Typical, -5V Minimum Low = -5.4V Typical, -5V Minimum
Input High > +1.8V Typical, +2.4V Maximum High > +1.8V Typical, +2.4V Maximum
Low < +1.5V Typical, +0.8V Minimum Low < +1.5V Typical, +0.8V Minimum
RS485
- Data Logger CR1000X CR6 CR300 series CR1000 CR800 CR3000
RS485 Half COM3-4 COM1-2 non non non non
RS485 Full COM3(C5-C8) COM1(C1-C4) non non non non
The maximum input voltage(最大許容電圧)
- Data Logger CR1000X CR6 CR300 series CR1000 CR800 CR3000
port
Cport(C)
SE/Uart
SE&C : ±20V U&C : ±20V C : -10/+15V C : ±20V C : ±20V C : ±20V
RS-232 RS-232/CPI : Rx ±25V, Tx ±15V RS-232/CPI : Rx ±25V, Tx ±15V RS-232 :Rx ±25V, Tx ±13V RS-232 :Rx ±25V, Tx ±5.V RS-232 :Rx ±25V, Tx ±5V RS-232 :Rx ±25V, Tx ±5V
*The allowable input voltage is up to ±25V and clamp the voltage at the Tx levels listed above.


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E-mail こちらから
http://www.weather.co.jp/

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クリマテック株式会社
東京都豊島区池袋4-2-11 CTビル 6F
TEL:03-3988-6616 FAX:03-3988-6613
E-mail こちらから
http://www.weather.co.jp/

to Climatec Home page