IEEE 1284
149
Request to Send
This configuration is part of hardware flow control and determines when the
REQUEST TO SEND (RTS) signal is generated. This signal indicates
whether or not the printer is ready to receive data.
•
True (the default). Continuously asserts the RTS signal.
•
Ready/Buffer Not Full. Asserts the RTS signal when the printer is
READY and the internal serial buffer is not full.
•
Not Ready/ Buffer Full. Asserts the RTS signal when the printer is NOT
READY or the internal serial buffer is full.
•
False. Never asserts the RTS signal.
NOTE: Xon/Xoff is always on. See page 147 for more information.
Buffer Size in Kbytes
This option configures the amount of memory allocated for the serial port
buffer. You may specify between 1 and 16 Kbytes, in 1-Kbyte increments.
•
16 (the default)
•
1 – 16
Poll Character
This option is used when One Char Enquiry is enabled and the IGP feature is
available. Whenever the printer receives this character, it sends a response to
the host indicating the current state of the printer. It may be configured from
00 through FF Hex.
•
00 Hex (the default)
•
00 – FF Hex
One Char Enquiry
When enabled, and the IGP feature is available, a status byte is sent back to
the host when the poll character or the command SFCC enquiry is sent to the
printer (serial interface only). The poll character is received and the status
byte is sent whether the printer is online or offline. The SFCC enquiry will only
be processed when the printer is online.
•
Disable (the default)
•
Enable
Serial Interface Menu
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