Epson DM-D210 Technical Reference Guide - Page 99

DP-110/DP-210 Connector Specifications, Computer Interface Connector Serial

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DP-110/DP-210 Connector Specifications This section explains the DP-110/DP-210 connector specifications. Computer Interface Connector (Serial) Type: D-Sub 25-pin connector 14 25 Appendix 1 13 Pin assignments Pin Signal Number Name 1 FG 2 TXD 3 RXD 4 *1 RTS 6 *2 DSR 7 GND Signal Direction Function - Frame ground Output  Stand-alone connection: Transmits data to the computer from the this product  Pass-through/Y-type connection: Transmits data to the computer from the TM printer. Input Output Receives data from the computer. (Computer -> This product) This indicates whether the display is ready to receive data. *2  [SPACE]: The display can receive data. DTR goes to SPACE under the following conditions:  When the display first becomes ready to receive data after power on.  When the self-test has ended.  When the remaining space in the receive buffer becomes 50 bytes or more after having been 40 bytes or less.  [MARK]: The display cannot receive data. DTR goes to MARK under the following conditions:  The period from when power is turned on to when the display first becomes ready to receive data.  When the self-test is executed.  When the remaining space in the receive buffer becomes 128 bytes or less (buffer-full state).  When DSR MARK is on, if the TM printer is selected by a peripheral device command. Input Indicates whether the computer is ready to receive data.  [SPACE]: The computer is ready to receive data.  [MARK]: The computer is not ready to receive data. - Signal GND 99

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99
Appendix
DP-110/DP-210 Connector Specifications
This section explains the DP-110/DP-210 connector specifications.
Computer Interface Connector (Serial)
Type: D-Sub 25-pin connector
Pin assignments
Pin
Number
Signal
Name
Signal
Direction
Function
1
FG
-
Frame ground
2
TXD
Output
Stand-alone connection:
Transmits data to the computer from the this product
Pass-through/Y-type connection:
Transmits data to the computer from the TM printer.
3
RXD
Input
Receives data from the computer.
(Computer -> This product)
4
*1
RTS
Output
This indicates whether the display is ready to receive data.
*2
[SPACE]: The display can receive data.
DTR goes to SPACE under the following conditions:
When the display first becomes ready to receive data after power on.
When the self-test has ended.
When the remaining space in the receive buffer becomes 50 bytes or
more after having been 40 bytes or less.
[MARK]: The display cannot receive data.
DTR goes to MARK under the following conditions:
The period from when power is turned on to when the display first
becomes ready to receive data.
When the self-test is executed.
When the remaining space in the receive buffer becomes 128 bytes or
less (buffer-full state).
When DSR MARK is on, if the TM printer is selected by a peripheral device
command.
6
*2
DSR
Input
Indicates whether the computer is ready to receive data.
[SPACE]: The computer is ready to receive data.
[MARK]: The computer is not ready to receive data.
7
GND
-
Signal GND
14
1
13
25