What is the Cisco AS58-1STM1?
The Cisco AS58-1STM1 is a circuit card / line card, listed by the manufacturer as "AS5850 Single port STM-1 card". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
Looking for the Cisco AS58-1STM1? This circuit card / line card, described by the manufacturer as "AS5850 Single port STM-1 card", is stocked and resold through Circular Telecom's refurbished and surplus telecom equipment network.
Common Questions
The Cisco AS58-1STM1 is a circuit card / line card, listed by the manufacturer as "AS5850 Single port STM-1 card". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
Circular Telecom sources and resells surplus and refurbished Cisco network equipment, including parts such as the AS58-1STM1, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue