Fujitsu 50FH5037E-02 Manuel D’Utilisation
Figure 6.10 Return Sense command sequence
H
L
RXD
H
L
TXD
H
L
CTS
H
L
RTS
H
L
DTR
H
L
DSR
Sequence 1
t
1
Sequence 2
Sequence 3
S
T
B
T
B
S
T
B
T
B
0 1 0 0 0 0 0
P
B
B
0
S
P
B
P
B
S
T
B
T
B
1
S
T
B
T
B
1 1 1 1 1 1 1 1
P
B
B
S
P
B
P
B
0 1 0 0 0 0 0
P
B
B
S
P
B
P
B
S
T
B
T
B
0 1 1 1 0 0 1 1
P
B
B
S
P
B
P
B
S
T
B
T
B
0 0 0 0 0 1 1 1
P
B
B
S
P
B
P
B
S
T
B
T
B
1 1 0 0 0 0 0 0
P
B
B
S
P
B
P
B
0
Sequence 4
S
T
B
T
B
1 1 1 1 1 1 1 1
P
B
B
S
P
B
P
B
0
0 0 0 0 1 0
P
B
B
S
P
B
P
B
t
2
t
1
t
2
t
1
: Less than 500 ms
t
2
: more than 1 word length
Sequence 1:
The host computer sends the RETURN SENSE command to the scanner.
X`02', `42'
Sequence 2:
ACK for the RETURN SENSE command is sent to the host computer.
X`FF'
Sequence 3:
Response for the RETURN SENSE command is sent to the host computer.
X`04', `4E', `E0', `01'
Sequence 4:
ACK for the response (issued at Sequence 3) is sent to the scanner.
X`FF'