why we are using (-24VDC) and where we r using plz tell me

Answer Posted / asif.k64@hotmail.com

In telecom Industry, Telecom devices use -24 Volts DC, as positive terminal is grounded.

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

can we copy the software from a transmitter using hht(hart 275) ?

1637


Explain the working principle of lvdt?

704


For crude application in floating roof tank, how to calibrate a DP Transmitter? How is the floating roof weight considered?

5008


Draw symbols of the following :

1537


How a conductivity sensor & analyzer work at boiler, whats the principle & science is beyond this,How conductivity sensor sence & convert signal & move toward analyzer & analyzer show reading in percent? also what is temperature compensate option in conductivity analyzer

2316






how to calculate the total flow in square root

1749


Square root calculation for dp flow transmitter?

674


How to check vortex flow meter is in good condition while we do not having calibration setup?

7532


What is the right procedure for adjusting the gap voltage of bently nevada vibration sensor?

14421


What pressure results for a flow transmitter of range 0- 180t/h in the dcs and 0-301mbar in the field using square root extraction. Kindly also suggest formulae for the percentages 0,25,50,75,100?

1545


what does the ratio 800-400-300-200/1-1-1-1-1 in the specification of current transformer indicates?

2076


what is performance test.need defination

1284


Boolean algebra

1719


What is 3 selection available when configure the burnout protection for controller

2078


What are primary elements of measuring pressure?

768