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6
Attention: two socket can not used at the same time.
Signal
Pin No
Source
Description
TXD
3
Printer
Printer transmits data to host
RXD
5
Host
machine
Printer receives data from host
CTS
1, 2, 6, 7
Printer
Flow control signal for printer and host
hardware (signal busy )
GND
9
-
Ground
Excel 3-2Pin assignment of serial port Socket SJ1 for type IDC-10 of SP-EU58III printer
Signal
Piano
Source
Description
TXD
2
printer
Printer transmits data to host
RXD
3
Host
machine
Printer receives data from host
CTS
6, 8
printer
Flow control signal for printer and host
hardware (signal busy )
GND
5
-
Ground
Excel 3-3 Pin assignment of serial port Socket SJ2 for type IDC-10 of SP-EU58III printer
When the interface is serial, setup of baud rate and date structure can be set by software, the
baud rate set by factory is 9600bps, one start position,eight data bit, one stop bit and no parity.
There are two options for handshake: one is through hardware control and the other is through
X-N/X-FF control,
As Fig 3-4.
Signal
Signal direction
Signal for serial port
Hardware control
Date can enter
Signal Line CTS are in SPACE
situation
Date can not enter
Signal Line CTS are in mark situation
XON/XOFF
control
Date can enter
Send X-ON code 11H through TXD
SIGNAL LINE
Date can not enter
Send X-OFF CODE3 through TXD
SIGNAL LINE
Fig 3-4 Handshake with serial pert for SP-EU58III
3.5 Appearance of parallel port
Parallel port for SP-EU58III is compatible with Centronics, and its port socket match with NO 26
flat cable plug, its pin assignment is as following Fig 3-5