What is the Nortel Networks NTR651RK?
The Nortel Networks NTR651RK is a circuit card / line card, listed by the manufacturer as "REAR I/O CARD". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
Nortel Networks NTR651RK: a circuit card / line card (REAR I/O CARD). Circular Telecom resells surplus and refurbished units of parts like this, helping operators extend network equipment lifecycles and reduce e-waste.
Common Questions
The Nortel Networks NTR651RK is a circuit card / line card, listed by the manufacturer as "REAR I/O CARD". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
Circular Telecom sources and resells surplus and refurbished Nortel Networks network equipment, including parts such as the NTR651RK, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue