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Parallel Port Loop-back Connector Pin Assignments
Output signal name
Pin no.
Pin no.
Input signal name
Strobe
1 — 13
Select
Data bit 0
2 — 15
Error
Auto feed
14 — 12
P.END (out of paper)
Init. printer
16 — 10 Acknowledge
Select input
17 — 11 Busy
Serial Port Loop-back Connector Pin Assignments
Output signal name
Pin no.
Pin no.
Input signal name
Transmit data
3 — 2 Receive data
1
Data carrier detect
Data terminal ready
4 — 6
Data set ready
9
Ring indicator
Request to send
7 — 8
Clear to send
Specifications A-9