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RS-232 is ±3 to ±15, with a maximum short circuit survivability rating of ±25. Typical implementations see ±12. The negative voltage is the marking state, or the one state at the USART level. The positive voltage is the spacing state, or the zero state at the USART level. In terms of control signals, such at DTR or CTS, MARK (negative) is false, and SPACE (positive) is true. Zero volts is invalid, representing a break state.
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Can you improve the voltage level without transformer?
yes, we can incease voltage level by aplifiers.......
What instrument can detect the presence of voltage but not the voltage level?
a multimeter?
What is the maximum touch voltage in dry conditions?
The maximum level of voltage allowed for a person to be exposed safely.
What does BIL basic insulator level really mean and its differences with Impulse withstand voltage and power frequency withstand voltage?
BIL is basic insulation level as per you or in other words it would be "basic impulse level" which implies the limit up to which an insulator could withstand impulse due to lightning strikes. Impulse is generated on the insulation due to the high voltage surges and spikes due to lightning strikes. BIL is generally much higher as compared to power frequency withstand voltage. In other words BIL is lightning Impulse withstand voltage. Impulse withstand voltage is the voltage that is generated due to switching operation and it's much higher than power frequency withstand, but BIL or the lightning withstand voltage is a the voltage level that an insulation can withstand during surge or lightning strikes.
How the Neutral displacement occures?
In a three phase connected system, if the loads are not balanced or if one voltage is disconnected due to any reason there will be neutral displacement to a new voltage level (from normal zero voltage). This can increase/decrease voltage in other phases
Why ttl voltage level converting to rs232 level?
Whwn an IC is connected to a PC, then the voltage levels of these two should be synchronized. For this purpose, the TTL voltage level is converted to RS 232 level. RS 232 is the interface between a PC and an IC.
What is 232 in RS232 and MAX232?
The difference between max232 and rs232 is the voltage levels of the rs232 are high. In order to reduce those voltage means to convert those voltage levels to TTL logic levels we use max232 integrated chip which is a dual driver/ receiver.
Why do you connect capacitor in MAX232?
The input to the max232 ic will be of Transistor Transistor Logic (TTL) and its voltage range will be of 5 volt. The output of the max 232 ic will be of Recomended Standard 232 Logic (RS232 logic) and its voltage range will be of 12 volt. The max 232 ic which is operating on 5 volt supply has to step up the 5 volt input to 12 volt. Hence a capacitor is used for pumping the voltage and called as pumping capacitor.
What do you use in laptop - rs232 or rs485?
rs232
What are the Differences between RS232 and RS449?
rs232 isfaster than rs449
Make USB to RS232 converter?
Yes, you can get a USB to RS232 converter (aka USB to Serial).
What is the difference between rs232 and rs485 port?
Difference between Rs232 and RS485 is Only Distance RS232 is not for long or far distance .. but RS485 can be use for LONGEST distance ..RS232 is single ended communication where as RS485 is Differential communication.Max.no of receivers in RS232 is only ONE, whereas in RS485 is 32.Max.no of transmitters in RS232 is only ONE whereas in RS485 is 32.IN RS232 there is no pin to change from transmitter mode receiver mode. But, In RS485 have DE pin to set transmitter mode and RI to set receiver mode.
Where can one purchase RS232 cable?
One can purchase a RS232 cable at most electronic stores. A few common examples of stores that have RS232 cables for sale are Best Buy, Radio Shack, and Fry's.
Can you improve the voltage level without transformer?
yes, we can incease voltage level by aplifiers.......
Full form of RS in RS232?
RS232 means "Recommended standard no. 232", EIA standard for serial communication Thirumalesha.....
Is rs232 synchronous or asynchronous?
It can be either.
What is the Formula to covert voltage level to decibel?
You mean the conversion from voltage V to voltage level LV. Voltage level LV = 20 * log V 117 volts equals 41.36 dB. The reference voltage 1 volt means 0 dB.
