SPRT SP-RMD11A User Manual page 12

2
1
Parallel interface pin number definition shown as below:
Cords No. Signal
1 /STB
3 DATA1
5 DATA2
7 DATA3
9 DATA4
11 DATA5
13 DATA6
15 DATA7
17 DATA8
19 /ACK
21 BUSY
23 /PE
25 SEL
4 /ERR
3-5 Parallel interface pin number
Directi
on
Gate trigger, rising along the read
input
Input
Input
Input
Input message from 1 to 8, when the logic
Input is "1" of each signal,it is high level,
Input
Input
input
Pulse reply," low" level mean the
output date has been received and printer
"high" level mean printer is " busy"
output
Via resistance drop down to " low"
output
Via resistance pull up to " high" level
---
output Via resistance pull up to " high" level
10
Instruction
data.
Those signals represent the
logic show"0"mean low level.
already to receive next date.
can not receive data
level mean have paper
mean printer online
2 6
2 5