19
(4)
Interface connector terminal assignments and signal functions
Table 1.15.1 Signal Layout and Functions
Pin
number
Signal
name
Signal
direction
Function
2
RXD
Input
Data reception
3
TXD
Output Data transmission
4
DTR
Output
When DTR/DSR control is selected:
This signal indicates whether the printer is busy.
SPACE indicates that the printer is ready to receive data, and MARK
indicates that the printer is busy.
The printer becomes busy (MARK) under the following conditions:
Printer status
Memory switch
1-3 status
ON
OFF
Offline (1)
During the period from when the
power is turned on until the printer
is ready to receive data after
mechanism initialization
(2)
During a self-test
(3)
When the cover is open
(4)
Feeding paper via Feed switch
(5)
When the printer stops printing
due to a paper-end
(6)
When waiting for a switch to be
pressed during macro execution
(7)
When an error has occurred
BUSY
BUSY
----
----
----
----
----
BUSY
BUSY
BUSY
BUSY
BUSY
BUSY
BUSY
(8)
When the receive buffer is full (*1)
BUSY BUSY
When XON/XOFF control is selected:
The signal indicates whether the printer is correctly connected and is
ready to receive data from the host computer.
SPACE indicates that the printer is correctly connected and is ready to
receive data from the host computer. The signal is always SPACE
except in the following cases:
• During the period from when the power is turned on until the
printer is ready to receive data after mechanism initialization
• During a self-test
5
SG
–
Signal ground
6
DSR
Input
This signal indicates whether the host computer can receive data.
SPACE indicates that the host computer can receive data, and MARK
indicates that the host computer cannot receive data. When DTR/DSR
control is selected, the printer transmits data after confirming this signal
(except when transmitting data by DLE EOT or GS a).
When XON/XOFF control is selected, the printer does not check this
signal.
7
RTS
Output Same as DTR
*1: Definition of “receive buffer full”
1)
When the receive buffer capacity is specified as 4 KB (Memory switch 1-2 is off):
Summary of Contents for EU-m30 Series
Page 1: ...Developer s Guide Includes information on OT BU30 M00139800 EN Rev A ...
Page 9: ...2 Caution Caution Hot Surface See Appendix B Caution Sharp Edges See Appendix P ...
Page 52: ...45 4 4 Dimensions for Installing to Customer Device See Appendix M ...
Page 73: ...66 Y direction Printer support X direction Printer support ...
Page 75: ...68 Y direction Printer support X direction Printer support ...
Page 79: ...72 Figure P 3 ...
