What is the Tellabs 81.XO192SR1131S?
The Tellabs 81.XO192SR1131S is a XFP optical transceiver module, listed by the manufacturer as "OC192 XFP SR SM". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Number
Part Overview
The Tellabs 81.XO192SR1131S is a XFP optical transceiver module — originally specified as "OC192 XFP SR SM" — available refurbished or as surplus stock via Circular Telecom, supporting network operators sourcing decommissioned and reclaimed equipment.
Common Questions
The Tellabs 81.XO192SR1131S is a XFP optical transceiver module, listed by the manufacturer as "OC192 XFP SR SM". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
Circular Telecom sources and resells surplus and refurbished Tellabs network equipment, including parts such as the 81.XO192SR1131S, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue