What is the Zhone Technologies ZNID-GE-4222A-EL?
The Zhone Technologies ZNID-GE-4222A-EL is a SFP optical transceiver module, listed by the manufacturer as "ROHS, AE ONT (GE UPLINK), OUTDOOR, 2 POTS, 2 GE, ELECTRONICS ONLY, PWR AND SFP SEPARATE". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.