GeBe FLASH GPT-4378 - Interfaces; Serial Interfaces

Interfaces • Serial Interfaces
7
Pin Assignment of the Serial Interface RS232 (V.24) at the Connector (11)
Connector at the printer: (5pin). >>> serial cable. The other end has a 9 pin SUB-D socket. The assignment is 1:1
matching the serial COM interface of the PC.
GCT-4378/79-FLASH5pin
Mini-USB Connector
Pin Assignment of the Serial Interface Cable
COM Interface PC
9pinSUB-D
Pin
1
Signal
CTS
I/O
O
Comment
If the level is logic-true, the controller can receive data.
Signal
CTS
Pin
8
2
3
4
5
TxD
RxD
I
O
VAUX/RTS
GND signal
I/O
GND
Print data
Error messages and Xon/Xoff messages
TxD
RxD
VP, VCC, or RTS selectable at the factory through solder bridges
RTS
GND signal
3
2
7
5
screen
At the controller, screen is connected to GNDF (frame ground)
screen
1,4,6,9 = NC
RS232
The interface cable that comes with the set connects
plug-in connector (11) with the RS232 connection
(COM interface of a PC) on the other end.
An open-ended cable with 5 single wires is available
as an option.
TTL
For OEM, a special version with 3.3V TTL levels is
available.
GeBE COM
In this setting, the printer uses the GeBE-Ir protocol for
communicating. The protocol can be used through the
RS232 as well as the TTL.
Through the cyclic redundancy check (CRC) protected
transmission blocks, a secure data connection can be
realized.
Also see: Infrared Interfaces
GeBE-Doc.No. MAN-E-395
5 Interfaces
5.1 Serial Interfaces
Timing of the Serial RS232 /TTL Interface
The standard timing is shown in the diagram.
For printers with EEPROM, the data format can be set through the print settings menu.
LSB
MSB
Start
StopPar
Start
0 1 2 3 4 5 6 7
Bit
1 Character: (1Start, 8 Data, 1 Parity, 1 Stop)
"1" (Mark)
"0" (Space)
Attention : the standard configuration has no paritybit
Attention : the standard configuration has 1 stopbit
Signal Level on TTL interface Level on RS-232 interface
"1" (Mark)
+5V (TTL-level) -3V ... -12V
0V (TTL-level)
+3V ... +12V
"0" (Space)
Standard Data Format
• 9,600 baud
• 8 data bits
• NON parity bit
• 1 stop bit
• TX line on
Selectable Data Formats
• 1,200, 2,400, 4,800, 9,600, 19,200, 38,400, 57,600 and 115,200 baud
• 7/8 data bits
• odd, even, non parity bit
• 1, 2 stop bit
• TX line turned ON/OFF
GeBE E + F GmbH • www.oem-printer.com • SMAN-E-471-V2.5 • Thermal Printer GPT-4378 /-4379
For extremely slow printer operation (<5mm/sek.) special settings may be necessary.
In this case please contact our technical support for more information.