ion 

One or more ions which play some role in the mechanism, e.g. transmitted by the channel, alters the rate, etc. Note: deprecated since v1.7.3

Element Information

Model

notes{0,1} , properties{0,1} , annotation{0,1} , group*
Children: annotation, group, notes, properties

Attributes

QName Type Fixed Default Use Inheritable Annotation
charge xs:positiveInteger required 
Electrical charge of the ion in question
default_erev VoltageValue optional 
Most implementations of these channel mechanisms (e.g. a mod file) will need a value for the
reversal potential for the ion which flows through the channel. However, this is a property of the cell, as opposed to the channel.
For convenience though, a typical value can be used here, so a pretty self contained script can be produced, but when used in a real cell the
actual value for erev must be calculated
name xs:string required 
Simple name for the ion. Due to the conventions used in NEURON, it is usually best to use 
the lower case form of the chemical symbol, e.g. na, ca, k
role Deprecated_IonRole PermeatedSubstance optional 
What role the ion plays in the dynamics of the channel/cell mechanism

Source 

<xs:element name="ion" type="Deprecated_Ion" minOccurs="0" maxOccurs="unbounded">
  <xs:annotation>
    <xs:documentation>One or more ions which play some role in the mechanism, e.g. transmitted by the channel, alters the rate, etc. Note: deprecated since v1.7.3</xs:documentation>
  </xs:annotation>
</xs:element>

Sample