Table 1-11. Localtalk Connector Pin Assignments - Epson ActionLaser 1600 Service Manual

Printer Features
X-ON/X-OFF (cannot be combined with DTR control)
P r o t o c o l :
DTR control (cannot be combined with X-ON/X-OFF)
230.4K bps
Transfer speed:

Table 1-11. LocalTalk Connector Pin Assignments

Pin Signal
No. Name
DTR
1
2 CTS
TXD
3
4 GND
RXD
5
TXD+
6
NC
7
RXD+
8
1-28
I/O
OUT Output by the printer. When DTR is HIGH, it indicates the
RXD signal can be received by the printer.
IN The printer transmits the data by TXD while CTS is HIGH.
OUT Serial ASCII data output from the printer.
HIGH level: when SD voltage is higher than SD voltage.
LOW level; when SD voltage is less than SD voltage.
Logic 0 is SPACE and logic 1 is MARK. MARK must be
maintained between transmitted character codes.
— Ground
IN Serial ASCII data input from the computer.
HIGH level: when RD+ voltage is higher than RD voltage.
LOW level: when RD+ voltage is less than RD voltage.
Logic 0 is SPACE and logic 1 is MARK; MARK state must
be maintained between transmitted character codes.
OUT Refer to TXD
— Not connected.
IN Refer to RXD.
EPSON ActionLaser 1600 Service Manual
Description