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    -   Permission to use, copy, and distribute this Document Type
    -   Definition (DTD) is hereby granted, provided that the above
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<!-- Character entity set. Typical invocation:
 Character entity set. Typical invocation:
     <!ENTITY % HPservice PUBLIC "-//Hewlett-Packard//ENTITIES Service//EN">
     %HPservice;
-->

<!ENTITY instman        SDATA "[instman]" >  
<!ENTITY hazvolt        SDATA "[hazvolt]" >  
<!ENTITY ground         SDATA "[ground]" >   
<!ENTITY dcvolt         SDATA "[dcvolt]" >   
<!ENTITY negpulse       SDATA "[negpulse]" > 
<!ENTITY pospulse       SDATA "[pospulse]" > 
<!ENTITY sinewave       SDATA "[sinewave]" > 
<!ENTITY sawwave        SDATA "[sawwave]" >  
<!ENTITY rampwave       SDATA "[rampwave]" > 
<!ENTITY triwave        SDATA "[triwave]" >  
<!ENTITY sqwave         SDATA "[sqwave]" >