Keltron LC Series, Руководство пользователя

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XON/XOFF Protocol: XON/XOFF Protocol: XON/XOFF Protocol: XON/XOFF Protocol: The unit transmits XON when it is ready to accept data and XOFF for conditions listed
above in the Serial Busy Protocol section.
Under XON/XOFF protocol the data flow out from the printers serial port is halted on receipt of XOFF and
resumed on receipt of XON.
RS232C Specifications (see Table 2): RS232C Specifications (see Table 2): RS232C Specifications (see Table 2): RS232C Specifications (see Table 2):
Baud rate DIP switch selectable for 150 through 9600 baud
Parity DIP switch selectable for ODD/EVEN/NO parity
Word length 1 start, 7 or 8 data bits (DIP switch selectable) and 1 or 2 stop bits (DIP switch selectable)
Signal levels Mark or Logical 1 = -3 to -14VDC
Space or Logical 0 = +3 to +15VDC
Handshaking RTS/CTS or XON/XOFF
Connection DB25S receptacle type (see Table 1 for pinouts)
The printer communications protocol can be modified from the front panel or by DIP switches located
inside the printer. When power is cycled to the printer the printer will always revert to the DIP switch
settings. It is recommended that the printer communication protocol by set by the DIP switches.
Note: When DIP switch settings have been modified cycle power to the Keltron LC series printer to enable
the new settings.
DB25S Connector Pin#
DB25S Connector Pin# DB25S Connector Pin#
DB25S Connector Pin# Description
Description Description
Description Signal Name
Signal Name Signal Name
Signal Name
1 Earth Ground GND
2 RS232 output TXD
3 RS232 input RXD
4 Request to send – output RTX
5 Clear to send – input CTS
7 Logic common COM
Table 1 Table 1 Table 1 Table 1 Pinout for Keltron LC series rear panel connector
Switch# Switch# Switch# Switch# 150 Baud 150 Baud 150 Baud 150 Baud 300 Baud 300 Baud 300 Baud 300 Baud 600 Baud 600 Baud 600 Baud 600 Baud 1200 1200 1200 1200
Baud Baud Baud Baud
1800 1800 1800 1800
Baud Baud Baud Baud
2400 2400 2400 2400
Baud Baud Baud Baud
4800 4800 4800 4800
Baud Baud Baud Baud
9600 9600 9600 9600
Baud Baud Baud Baud
1 ON OFF ON OFF ON OFF ON OFF
2 ON ON OFF OFF ON ON OFF OFF
3 ON ON ON ON OFF OFF OFF OFF
Switch#
Switch# Switch#
Switch# 7 Data
7 Data 7 Data
7 Data
Bits Bits Bits Bits
8 Data
8 Data 8 Data
8 Data
Bits Bits Bits Bits
No parity
No parity No parity
No parity Parity
Parity Parity
Parity
enabled enabled enabled enabled
Even
Even Even
Even
parity parity parity parity
Odd
Odd Odd
Odd
parity parity parity parity
4 ON OFF - - - -
5 - - ON OFF OFF OFF
6 - - - - ON OFF
Table 2
Table 2 Table 2
Table 2 DIP switch setting for the Keltron LC series printer
NOTE: All the switches are in the OFF position from the factory.
NOTE: All the switches are in the OFF position from the factory. NOTE: All the switches are in the OFF position from the factory.
NOTE: All the switches are in the OFF position from the factory.