Serial Interface
Connector pin assignments and a description of respective interface
signals are shown in Table F-3.
Table F-3. Pins and signals
Pin No. Signal name
Dir
Functional Description
1
Not used
—
Reserved.
2
REV (Reverse
OUT
Indicates printer is ready to receive
channel)
data or not. MARK level indicates
printer is not ready to receive data.
3
RXD
IN
Receives data (RS-232C level)
4
Not used —
Reserved.
5
Signal GND
—
Signal (Logic) ground level.
6
Chassis GND
—
Printer chassis ground.
1. DIR refers to the direction of signal flow as viewed from the
printer.
Word Length
Start bit:
Data bits:
Stop bit:
Parity
1 bit
8 bits
1
bit or more
Odd, Even, or Non-Parity (see Table A-4)
F-5
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