Hello. Sign In
Standards Store
ITU-T X.691 2015 Edition, August 1, 2015
Complete Document
Active, Most Current
Information technology – ASN.1 encoding rules: Specification of Packed Encoding Rules (PER)
$47.00 USD
In Stock
Print  :
$52.00 USD
In Stock
Print + PDF :
$69.30 USD
You save 30%
In Stock
This Recommendation | International Standard specifies a set of Packed Encoding Rules that may be used to derive a transfer syntax for values of types defined in Rec. ITU-T X.680 | ISO/IEC 8824-1. These Packed Encoding Rules are also to be applied for decoding such a transfer syntax in order to identify the data values being transferred.

The encoding rules specified in this Recommendation | International Standard:

– are used at the time of communication;

– are intended for use in circumstances where minimizing the size of the representation of values is the major concern in the choice of encoding rules;

– allow the extension of an abstract syntax by addition of extra values, preserving the encodings of the existing values, for all forms of extension described in Rec. ITU-T X.680 | ISO/IEC 8824-1;

– can be modified in accordance with the provisions of Rec. ITU-T X.695 | ISO/IEC 8825-6.