000			00686nam a2200241Ia 4500
001			23629
005			20250221151750.0
008			250214s9999||||xx |||||||||||||| ||und||
020			_a8178086263
100			_aBlack, Uyless
245		0	_aOptical networks : third generation transport systems
260			_aDelhi
260			_bPearson Education
260			_c2002
300			_axx, 331p.
500			_aIncludes bibliographical references and index
650			_aNetworks -- Optical networks
650			_aOptical networks
650			_aSonet and SDH standardss -- Networks
650			_aTelecommunication networks
650			_aTransport networks(Optical)
942			_cBK
999			_c39559 _d39559