What is the Cisco NM-16A/S?
The Cisco NM-16A/S is an equipment module, listed by the manufacturer as "16pt Async/Sync Serial Network Module". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
Manufactured by Cisco, the NM-16A/S (16pt Async/Sync Serial Network Module) is an equipment module. Circular Telecom sources, tests, and resells surplus and refurbished Cisco equipment like this as part of a lower-carbon alternative to new procurement.
Common Questions
The Cisco NM-16A/S is an equipment module, listed by the manufacturer as "16pt Async/Sync Serial Network Module". 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 NM-16A/S, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue