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19 — X.21 and V.35 DCMs
Procedure 19-6 To set the X.21 and V.35 control signals
where pp is 1 or 9, and c is 1
19.8
Data structure (asynchronous only)
The data structure of asynchronous transmission has three configurable
characteristics:
•
character length
•
number of stop bits
•
type of parity
Character length
Character length is the number of data bits used to transmit a character in
asynchronous transmission. Character length can be set to:
•
5 bits
•
6 bits
•
7 bits
•
8 bits (default)
19-8
CONFIG — CIRCUIT — <pp-c> ↵ — FUNCTION — CTRL_LEADS
INPUTS
DCD
ON
A character must be 8, 9, 10 or 11 bits. The number of bits
Note —
in a character is the sum of the start bit (always 1), character length (5,
6, 7 or 8), stop bits (1 or 2) and parity bit (0 for no parity or 1 for odd,
even, mark or space). For example, if the character length is set to
5 bits and the number of stop bits is set to 1, the parity cannot be set
to no parity. If this rule is broken, the relevant softkeys are not
displayed.
CTS
ALB
RTS
OFF
2902 MainStreet Technical Practices
OUTPUTS
I
C
END_TO_END
SK000512
90-2906-01
May 2002
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