What is the Ciena 170-0312-900?
The Ciena 170-0312-900 is a circuit card / line card, listed by the manufacturer as "5171 LINE INTERFACE CARD". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
Manufactured by Ciena, the 170-0312-900 (5171 LINE INTERFACE CARD) is a circuit card / line card. Circular Telecom sources, tests, and resells surplus and refurbished Ciena equipment like this as part of a lower-carbon alternative to new procurement.
Common Questions
The Ciena 170-0312-900 is a circuit card / line card, listed by the manufacturer as "5171 LINE INTERFACE CARD". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
Circular Telecom sources and resells surplus and refurbished Ciena network equipment, including parts such as the 170-0312-900, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue