SATELLINE-2ASxE
User Guide, Version 2.0
14
3 Asynchronous Data Transmission and Data Speed
If the character length or data speed is incorrectly set, errors will appear in transmission. At
reception they appear as "error characters" or as incorrect operation of the modem.
The data settings of each station in the system should all be the same.
3.1 Asynchronous character
The asynchronous data characters are in accordance with the ANSI-standard (e.g. ASCII), and
according to the length of the character are divided into two groups. T
he character length is 10
or 11 bits including start, data, parity and stop bits.
Radio data modems repeat the parity bit as such. The composition of a character is shown below
(compare to 7.2.3):
S T A R T
7 D A T A
P A R I T Y
S T O P
S T A R T
8 D A T A
S T O P
e . g . 7 , E , 1
8 , N , 1
S T A R T
8 D A T A
S T O P
P A R I T Y
S T A R T
9 D A T A
S T O P
1 0 B I T
1 1 B I T
e . g . 8 , E , 1
9 , N , 1
