what is difference between fiber otical cable and cat cable?

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What is the function of Bias Tee (BPxx) input Which power supply card required for Ultra BTS for DC 24V input What is the state if the GREEN LED is glowing on PWSx card

0 Answers   NSN,

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What is meant by led?

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Explain why is an excess-3 code is called an unweighted code?

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why we use zener diode in switching action

1 Answers  

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We are facing the problem of communication failure between seimens drives and ABB DCS. Between drives and DCS on RLM -01 module for communication purpose. We found red blinking i.e error blinking in RLM -o1 module. So we replaced with new one but after one month same problem again came. So again we installed old RLM-01 module. Now also RED blinking is coming but sometimes drives are not tripping. What will be the cause for this problem?

0 Answers   DSPM,

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19. Name different types of TRXs which supports different GSM bands 20. ODU LED shows orange – what is the significance?

0 Answers   NSN,

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Wats da diff b/w ithernet communication and profibus communication?

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is there any good institute in mumbai that provides good Automation courses ?

0 Answers   ME,

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Please send BSNL TTA Question Answer

0 Answers   BSNL, PSEB,

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what is the source of emf waves?

1 Answers  

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Why do we use distinct polarisation (UL-H:DL-V) while uplinking and downlinking rather than same (UL-H:DL-H)?

0 Answers  

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