Table 1-9 Pin Assignments For The Serial Interface - Epson DFX-8000 Service Manual

Table 19. Pin Assignments for the Serial Interface
Pin Signal
NO.
Name
1
FG
2
TXD
3
4-6
7
GND
11 DTR
12-19
20 REV
21-25
DFX-8000
Dir. Function
Frame ground
Transmit data. X-ON/X-OFF code transmission.
in Receive data. inputs data from the host computer.
Not used
Signal ground
Not used
Data terminal ready. (internally connected to pin
20 in parallel mode.)
Not used
Reverse. Has the same function as DTR.
(internally connected to pin 20 in parallel
mode .)
Not used
General Description
1-27