000			01160 a2200229 4500
003			Nust
005			20170207153244.0
010			_a 80028236
020			_a0830612785 (pbk.) :
020			_a0830696350 :
040			_cNust
082	0	0	_a621.382
100	1		_aHobbs, Marvin.
245	1	0	_aModern communications switching systems / _cby Marvin Hobbs.
250			_a1st ed.
260			_aBlue Ridge Summit, Pa. : _bTab Books, _c1981.
300			_a308 p. : _bill. ; _c22 cm.
500			_aIncludes index.
505			_aThe Slow Push for Progress (Page-7) Basic Switching and Traffic Concepts (Page-19) Logic Switching Algebra and Control (Page-39) Circuit Switches and Relays for Speech (Page-56) Control and Signal Methods (Page-78) Modern Step-by-Step and Rotary Exchanges (Page-104) Electromechanical Crossbar Systems (Page-128) Electronic Exchanges with Wired Logic (Page-142) The Elements of Stored Program Control (Page-162) Typical SPC Exchange Switching Systems (Page-199) Data and Telex Switching (Page-215) Automatic Private Branch Exchanges (Page-229).
538			_aAlmirah No.36 Shelf No.5
650		0	_aTelecommunications engineering.
942			_2ddc _cBK
999			_c182547 _d182547