CCJ4MUNICATIONS
SECTION·6.7
FIG. 6. 14
SYNCHRONOUS BUFFER ORGANISATION
Buffer Length
Record
Length
Record
Length
IPI lSI DATA l
lAISYNSlTI CHARACTERS I
I DATA
l
I CHARACTERS l
lDl lXl
Record Terminator.
Depending on the state of the
mode flat, this would be either:
a) an IRS character, or
b) an IUS character followed
by 2 intermediate characters.
Record
Length
l DATA l
I CHARACTERS I
IRS
or EM
IEICI I l I
!TI R I I l
1Bl ICI
I I
if
selected
An intermediate STX,
if selected, would be
inserted here.
(Note: If selected
the STX would not be
counted as part of
the Record).
Line
turnaround
characters
(FFH).
When calculating the buffer length, space should be included for the
characters at the start of the buffer (i.e. PAD,SYNS and STX), the characters
at the end (i.e. ETB or ETX, 2 CRC characters and 2 line turnaround
characters) and all the required record terminators and intermediate STXs.
VER.V09F
PAGE 6 - 36
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