SDCP Operation
3-17
3166-A2-GB20-10 November 1998
The set of valid characters for control of the carrier external COM port device is
as follows:
The numbers: 0–9
The lowercase letters: a–z
The uppercase letters: A–Z
The space (“ ”) character
The ASCII symbols (in ascending order, based on the ASCII code)
The End Of Line (EOL) symbol:
The caret (‘‘^”) control character is used to select non-printable ASCII
characters. The caret ‘‘^” must be followed by one character which together
form the control sequence. Table 3-4 defines all of the available control
sequences.