1155
6699
SERIAL INTERFACE
Female DB9 connector
J11
1 DTR (out) When “1”, printer is fed
2 TX (out) During transmission, oscillates between “0” and “1” depending on data
3 RX (in) During reception, oscillates between “0” and “1” depending on data
4 n.c.
5 GND
6 DTR (out) When “1”, printer is fed
7 n.c.
8 RTS-O (out) When “1”, printer is ready to receive data
9 +5VO
NOTES
Given the presence of the RS232 standard, logic value “0” corresponds to a voltage level of between +3 Vdc and +15
Vdc and logic value “1” corresponds to a voltage level of between -3 Vdc and -15 Vdc.
DEVICE > PC connection
Use an RS232 serial cable to connect the printer to a personal computer. The following picture shows an example of
connection between the device and a personal computer using a 9 pin serial connector.
DEVICE PC
DCD
RXD
TXD
SIGNAL GND
DSR
CTS
DB9
1
2
3
4
5
6
7
8
9
DB9
1
2
3
4
5
6
7
8
9
When use a serial cable, we recommend the installation of a ferrite core on the serial cable..
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