In telecommunications an end instrument is a piece of equipment connected to the wires at the end of a telecommunications link. In telephony, this is usually a telephone connected by a local loop. End instruments that relate to data terminal equipment include printers, computers, barcode readers, automated teller machines (ATMs) and the console ports of routers.
- P. Gnanasivam (2005). Telecommunication Switching and Networks. New Age International. pp. 26–. ISBN 978-81-224-1583-4.
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