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Chapter 5, Programming the Cellular Adapter
FACCH and SACCH programming
Programming the Cellular
Adapter
FACCh:FFSWord <Forward Block>, <Default Flag Command string>, <Word
Command string>
SACCh:FFSWord <Forward Block>, <Default Flag Command string>, <Word
Command string>
Forward FACCH or SACCH Word Action
This is the command that creates the message to be sent. It instructs the Test Set to
schedule the words to be transmitted at the Forward Block Count. You can send
one to four words. Each word consists of a 13 digit hexadecimal string.
The Default Flag Command string: composed of one hexadecimal digit per word
in the Word Command String. The first digit corresponds to the first word in the
Word Command string, the second digit to the second word, and so on. If the digit
is non-zero, the word will be transmitted each time the internal block count is
equal to the block the word was assigned to. If the digit is zero, the word will be
transmitted only once.
The Word Command string: one to four 13 digit hexadecimal strings. Each string
separates a FACCH or SACCH word. The leftmost digit is the word header and
the remaining 12 digits are the word contents.
Syntax
CALLP:DCCH:FACCh:FFSWord ‘<Forward Block>,<Default Flag Command
string>,<Word Command string>’
CALLP:DCCH:SACCh:FFSWord ‘<Forward Block>,<Default Flag Command
string>,<Word Command string>’
Sample
CALLP:DCCH:FACCh:FFSWord ‘300,10,0123456789ABCFEDCBA9876543’
0123456789ABC is the first word, and is repeated;
FEDCBA9876543 is the second word, and is not repeated.
In the string ‘10’, the 1 indicates repeat, the zero indicates don’t
repeat. Two digits in this string indicate that there are two words
to come in the Word Command string.