FENIX IMVICO
TK-41 OPERATION MANUAL
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2.3.2- SERIAL RS-232 CONNECTOR
2.3.2.1- Specifications
•
Data transmission: Serial
•
Synchronization:
Asynchronous
•
Handshaking: CTS/RTS control
•
Signal levels (RS232): Logic “1” = -3 to –15 V
Logic “0” = +3 to +15 V
(See
APPENDIX E- HOW TO ORDER
for TTL signal levels).
•
Baud rate: 4800, 9600, 19200, 38400 bps (bps: bits per second)
•
Data word length: 8 bits (fixed)
•
Parity Settings: None, even, odd
•
Stop bits: Fixed to 1.
•
Connector (printer side): Male D-SUB9 pin connector
NOTES:
•
The baud rate, and parity settings can be changed in
PROGRAMMING
MODE
. (Refer to point
3.4.2
.).
•
The stop bit for the printer side is fixed to 1.
•
The data word length is fixed to 8 bits.
Pin
Signal
name
Signal
direction(from
the printer side)
Function
2
RXD
Input
Receive data
3
TXD
Output
Transmit data
4
/DTR
Output
Logic “0” indicates that the printer is connected and ready to
receive data, and logic “1” indicates that the printer is busy. If this
signal stays logic “1” for more than 4 seconds this indicates an
error in the printer (see point
3.5- ERROR PROCESSING
).
5
GND
-
Ground
6
-
-
Not connected
7
/RTS
Output
When this signal is logic “0” the printer is ready to receive data,
and logic “1” indicates that the printer is busy.
Table 2.1-
Serial port pin-out.
Fig. 2.11
– RS-232 connector as seen from outside the TK41.
1
2
3
4
5
6
7
9
8
