Telecommunications Museum - Pearson Electrotechnology Centre
Lachine, Quebec
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Evolution of Telecommunications
Images:

 
M3904 Digital Phone
145 of 151 		DMS-10 Switching System
146 of 151 		DMS Line Card
147 of 151 		DMS-500
148 of 151 		Main Distributing Frame
149 of 151 		OC-3 Express Optical Carrier
150 of 151
Modern Printed Circuit Board
151 of 151

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