i) OTDR detects faults going in the optical fiber link.
ii) Fast automatic testing.
iii) Troubleshoot the faults in optical fiber communication.
iv) Maintain optical telecommunication network.
i) OTDR detects faults going in the optical fiber link.
ii) Fast automatic testing.
iii) Troubleshoot the faults in optical fiber communication.
iv) Maintain optical telecommunication network.
Rectifier is a electronic circuit or a device which is used for converting AC voltage/current to DC voltage/current.
Requirements of rectifiers:- i) Rectifier is able to convert two directional Alternate Current (AC) to unidirectional pulsating Direct Current (DC).
ii) Rectifier removes, the negative part from Alternate Current (AC).
iii) By using Rectifier and step-down transformer we get desired DC voltage.
iv) Rectifier divided into two types:- a) Half wave rectifier
b) Full wave rectifier
GPON or Gigabit passive optical network is a point to multipoint access mechanism.
The main characteristics of GPON is the use of passive splitters, which enable a single feeding fiber from the networks provider's central location to serve multiple users with their homes and small business.
GPON uses the advanced Encryption standard (AES) for security purpose, which was designed to be efficient in both hardware and software and support a block length of 128 bits and key length 128, 192 and 256 bits.
GPON also support all types of Ethernet protocol.
DWDM is a technology that puts together multiplexes data signals from different sources so, they can share a single optical fiber pair while maintaining complete partition of the data stream.
Individual signal is carried on a separate light wavelength. The dense part of DWDM refers to the fact that more than 80 separate wavelength, each about 0.8 of a nano-meter (nm) wide can short a single optical fiber.
DWDM allows enormous amount of data to traverse a single network link. Because they are
carried an clear wavelength, the streams also called channel do not interfere with each other.
Consequently data integrity if maintained of well as any security related positioning is also maintained.
ii) Provide extra resilience
iii) Maximum Capacity system available.
iv) Greater fiber capacity
v) Easier network expansion
vi) Can conserve switched bandwidth
vii) DWDM System Capable of longer span length
1) If A = {1,2,3} then {2,3} is proper subset of A.
True
False
2) If A = {1, 2}, B = { 2, 3, 5 } and C = { 1, 2, 5 } then find A intersection B intersection C.
{2}
{1}
{3}