31dacfec_tion_Model__v1_5__IN_PROGRESS___Description
[Option] charset [Level] Connection [Default] none [Description] 
Character set for negotiation. (Since only one character-set can be proposed, this is really an ultimatum rather than a negotiation.) See below for valid values of this option.
ZOOM - ZOOM: The Z39.50 Object-Orientation Model, v1.5 (IN PROGRESS)
Description