Answer / harsh zala

Fiber optic uses signals to be transmitted in form of light.
There are certain instruments which allows us to check the
signal level of fiber optic cable. The instrument name is
OTDR.
Through which we can check the fiber optic cable.

Answer / abdus sattar mollah

by instrument name OTDR: Optical Time Domain Reflexometer.
It injects laser beam into optical fiber through patch cord
and provides a graph between attenuation (dB) and Distance
(m).{performance decresess for shorter distance)
The graph's nature shows the cable performances.The graphs
has rising peaks followed by decaying lines.Spikes in the
decaying lines indicates severe loss.So,if we have smooth
decaying graph then it reflects good optical fiber
path.Whereas Spikes in curve indicates energy loss which
can be corrected by maintenence of Media Converter(OFC)
converter.Also the splice joings of fiber should not exceed
a maximum 0f 0.1 dB (calculated by Arc splicer Instruments).
Thats is how i have worked for communicating RTU panels
with SCADA server at Mangal PAndey Water Treatment
Plant,Barrackpore,West Bengal

Answer / jignesh

optical fiber cable is transmit the signal in form of
light,it will be measure such a instrument is OTDR .


RTU - stand for remote terminal unit . it collects all data
from the field , in field numbers of rtu is availble and
send a signal to one MTU. MTU is stand for Master Terminal
Unit which give signal to scada computer is Supervisory
Control Data Aqusition system.

Answer / praveen kumar

by instrument called OTDR

RTU remote Terminal Unit, for SCADA system used,all the
calbes are connected in RTU only.

Answer / sagar

Otdr is a simple instrument to use of identity the fault of OFC cable.

can any one tell me when ongc placement test and its forms is available????/ pls tell me if u know

0 Answers  

what is your eligibility criteria for freashers?

0 Answers   Satyam,

how to rectify the problem ,if we erected the DPT instrument wrongly of hp on lp side and lp on hp side?

5 Answers  

WHAT IS SMART SENSOR AND DIFFERENT B/W SMART SENSOR AND SENSOR??? PLS GIVE ME ANSWER AS SOON AS POSSIBLE.....

1 Answers  

Area classification, Equipments, Gas groups, temperature classification, Ingress protection, Fire Extinguishers.

0 Answers   CCIE,

What is shriking and swell effect for a boiler ?

1 Answers  

what is preventive maintenance , explain with difination

1 Answers   Bapco Bahrain Petroleum Company,

How can i test procedure grounding for CAT-7 cable? Or How can we test procedure CAT-7 Cable Electrically safe?

0 Answers   Tecnimont,

which is the best type to measure level of a Tank(water). Displacer or Differential Pressure method?

2 Answers  

can u plz send me technical questions asked in SCHNEIDER ELECTRICAL technical paper?

0 Answers   TCS,

what is datum line?

4 Answers  

what is mean by TDC-3000

5 Answers   ADCO,