Synxcom SM9234D, Руководство пользователя

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AT Commands
Page 36
Binary numeric constants consist of a sequence of one or more of the characters
"0" and "1".
In all numeric constants, the most significant digit is specified first. Leading "0"
characters are ignored by the modem. No spaces, hyphens, periods, commas,
parentheses, or other generally-accepted numeric formatting characters are
permitted in numeric constants; note in particular that no "H" suffix is appended to
the end of hexadecimal constants.
String Constants
String constants consist of a sequence of displayable IA5 characters, each in the
range from 2/0 to 7/15, inclusive, except for the characters ‘"’ (IA5 2/2) and "\"
(IA5 5/12). String constants are bounded at the beginning and end by the double-
quote character (‘"’, IA5 2/2).
Any character value may be included in the string by representing it as a backslash
("\") character followed by two hexadecimal digits. For example, "\0D" is a string
consisting of the single character <CR> (IA5 0/13). If the "\" character itself is to
be represented in a string, it is encoded as "\5C". The double-quote character, used
as the beginning and ending string delimiter, is represented within a string constant
as "\22".
A "null" string constant, or a string constant of zero length, is represented by two
adjacent delimiters ("").
Compound Values
Actions may have more than one sub parameter associated with them, and
parameters may have more than one value. These are known as "compound
values", and their treatment is the same in both actions and parameters.
A compound value consists of any combination of numeric and string values (as
defined in the description of the action or parameter). The comma character must
be included as a separator, before the second and all subsequent values in the
compound value. If a value is not specified (i.e., defaults assumed), the required
comma separator must be specified; however, trailing comma characters may be
omitted if all associated values are also omitted.