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Section 5: Interface Specifications
GT Series Operator’s Manual Page 5-5
5.6 SERIAL INTERFACE SPECIFICATIONS (RS-232C)
The serial interface of this printer conforms to the RS-232C standard.
There are two types of receive modes: 1. Single Job Buffer 2. Multi Job Buffer
These can be set using the dip switches.
Basic Specifications
Standard Interface Inside the printer
Dip Switch
1) Character
configuration
2) Transmission
speed
3) Protocol
OFF 8 bits
1-1 Data bit length
ON 7 bits
DSW1-2 DSW1-3
OFF OFF NONE
OFF ON EVEN
ON OFF ODD
1-2
1-3
Parity bit
(2-3)
ON ON Not used
OFF 1 bit
1-4 Stop bit
ON 2 bits
DSW1-5 DSW1-6 DIPSW2-8 OFF DIPSW2-8 ON
OFF OFF 9600bps 9600bps
OFF ON 19200bps 19200bps
ON OFF 38600bps 4800bps
1-5
1-6
Baud rate
(5-6)
ON ON 57600bps 2400 bps
DSW1-7 DSW1-8 DIPSW2-8 OFF DIPSW2-8 ON
OFF OFF Ready/Busy Ready/Busy
OFF ON X-on-Xoff X-on-Xoff
ON OFF Status 3 echo Status 3 echo
1-7
1-8
Protocol
(7-8)
ON ON Driver protocol Status2 echo
* The switch between Single Job Buffer and Multi Job Buffer can be
specified using dip switches 2-5 in the printer.
Also, the communication setting can be switched using dip switches 2-8 in
the printer.
Synchronization mode Asynchronous
Maximum Receivable
Buffer capacity
2.95Mbyte
Code used ASCII(7 bit) Graphics(8 bit)
Connectors
Printer side DB-25S (Female)
Cable side DB-25P (Male)
Cable length 5 meters or less
Transmission format
Start b1 b2 b3 b4 b5 b6 b7 b8 Stop
Note b8 is not applicable when using 7 bits.
Signal level
High level: +5 ~ +12V
Low level: -5 ~ -12V
Near full
Release Near Full
Status
2.95Mbyte
0.95Mbyte remaining
1.95Mbyte remaining
0Mbyte