Bi-Directional Communications - SATO CL608VA Operator And Technical Reference Manual

Section 5. Interface Specifications
Cable Requirements
HOST
FG
RD
TD
SG
Data Streams
The data streams for
Ready/Busy flow control. The
stream. (NOTE: All characters, including
<STX><ESC>A . . Job#1 . . <ESC>Z<ESC>A . . Job#n . . <ESC>Z<ETX>
Example: <STX><ESC>A . . Job#1 . . <ESC>Z<ETX>XXXXX

BI-DIRECTIONAL COMMUNICATIONS

This is a two-way communications protocol between the host computer and the
printer, thus enabling the host to check printer status. When this protocol is selected,
there is no busy signal from the printer (pin 20,
request the complete status from the printer, including ready/busy. Whenever the
host requests printer status, it transmits an
respond with its status within five milliseconds. If printing, it will respond upon
finishing the current label, then resume printing. In order for this protocol to work
properly, pin 6 (
ensure these pins are always in the correct state is to tie pin 20 (
( ) and pin 4 (
Cable Requirements
HOST
FG
RD
TD
SG
Page 5-6
INTERCONNECTION
are constructed in the same way as they are for
and
) and pin 5 (
) to pin 5 (
INTERCONNECTION
9001035 Rev. E
PRINTER
1 FG (Frame Ground)
2 TD (Transmit Data)
3 RD (Receive Data)
4 RTS (Request to Send)
5 CTS (Clear to Send)
6 DSR (Data Set Ready)
20 DTR (Data Terminal Ready)
7 SG (Signal Ground)
control characters must frame the data
, and
, is always high). The host must
to the printer and the printer will
) must be held high by the host. One way to
) at the printer end of the cable.
PRINTER
1 FG (Frame Ground)
2 TD (Transmit Data)
3 RD (Receive Data)
4 RTS (Request to Send)
5 CTS (Clear to Send)
6 DSR (Data Set Ready)
20 DTR (Data Terminal Ready)
7 SG (Signal Ground)
are in ASCII).
) to pin 6
SATO CL Series Printers