Citizen Systems Citizen Swift 90 - Manual (Page 41)

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Serial Interface Setting Options The following available options can be set via the DIP switches
on the interface:
Baud Rate 19200, 9600, 4800, 2400, 1200. 600, 300 or 110
Parity None, odd or even
Data Bit 8-bit or 7-bit data length
Stop Bit 2-bit or 1-bit
Protocol XON / XOFF or DTR / DSR
Warning: Before you make any connection be sure that the power
to the printer and the computer is off.
Serial Interface Installation Serial interface installation is a
straightforward process. First lift the cover away from the IC card
compartment. Then take your serial interface unit, and holding it
facing out, plug the connector end into the connector socket in
the compartment, making sure that at the same time the sup-
porting bars slip through the slots. With a cross-point screw-
driver you complete the installation process by screwing the bars
to the printer.
Serial Interface Protocols The serial interface is configured through the DIP switches on the
interface. The serial interface offers two communication protocols: data ready and XON/XOFF.
The first is a hardware protocol and the second is a software protocol. These protocols help to
ensure that your computer doesn’t send information to the printer faster than it can print it.
To select a protocol you need to look at the manuals for the programs that you will be using with
your printer. They will tell you which serial protocol they use, select the same protocol for your
printer.
Dip Switch Function Switch Off Switch On
3-1 Baud rate See below
3-2 Baud rate See below
3-3 Baud rate See below
3-4 Protocol XON/XOFF protocol Data ready protocol
3-5 Data bit 8 bit 7 Bit
3-6 Parity Parity check off Parity check on
3-7 Parity Even Odd
3-8 Reserved (un-used)
Dip Switch 3-3 3-2 3-1 Baud Rate
ON ON ON 19200 (not Swift 90,120D 90x)
OFF OFF OFF 9600
ON OFF OFF 4800
OFF ON OFF 2400
ON ON OFF 1200
OFF OFF ON 600
ON OFF ON 300
OFF ON ON 110 or 150