Epson 10020 - Manual (Page 153)

Keyboard Connector Pin Assignments
Pin no. Signal name Direction Description
1 KBD CLK I/O Keyboard clock
2 KBD DATA l/O Keyboard data
3 -KBD RESET O -Keyboard reset
4 GND
—
Ground
5 +5V
—
Power
6-8 NC — No connection
Parallel Port Loop-back Connector Pin Assignments
Signal name Pin no. Pin no. 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
(Output signal) (Input signal)
Serial Port Loop-back Connector Pin Assignments
Signal name Pin no. Pin no. Signal name
Transmit data 2 — 3 Receive data
Request to send 4 — 5 Clear to send
Data terminal ready 20 — 6 Data set ready
(Output signal) (Input signal)
Specifications B-9