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Program Actions
I
(Type 1
Scanner)
Program
Hardware Actions
I
_-~~
_ _ I _____
(Type
2sca~
_ _ _ _ _ _ _ _
I_
Chart CC4
I
I
•
2
•
3
•
l
A
•
SDFa32
OUTPUT
SYN CHAR
PDF•32
B
SECOND SYN
TO PDF
CHAR
•
3.3 MS FROM
LAST SVC REQ
L2 INTERRUPT
SET SVC REQ
c
I FDR CHAR SVC I
IN ICW
•
SDFa32
OUTPUT
CHAR 1021
PDF•02
D
STX CHAR
TO PDF
•
3,3 MS FROM
LAST SVC REQ
L2 INTERRUPT
SET SVC REQ
E
IFOR CHAR SVCI
IN ICW
•
SDF•02
OUTPUT
CHAR IXXI
PDF•XX
F
DATA CHAR
TO PDF
•
3.3 MS FROM
LAST SVC REQ
L2 INTERRUPT
SET SVC REQ
G
IFOR CHAR SVC)
IN ICW
•
SDF.XX
OUTPUT
CHAR 1031
PDF•03
H
ETX CHAR
TO PDF
•
3.3 MS FROM
LAST SVC REQ
L2 INTERRUPT
SET SVC REQ
.J
!FOR CHAR SVCI
IN ICW
•
K
•
2
•
3
•
4
•
Line Set and External
Modem
Interface
XMIT
SYN 132)
XMIT
SYN 1321
XMIT
STX 1021
XMIT
DATA IXXI
•
A
•
B
•
c
•
D
•
E
•
F
•
G
•
H
•
.J
•
K
Figure 9.
Exa1npk
of Dedicated Half-Duplex Service-Programmed for an IBM Binary Synchronous Communication Terminal
(Part4of 6)
Examples of Interface Sequences between the IBM 3704 and 370S and the Communication Line 3S
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