Dp-110/Dp-210 Connector Specifications - Epson DM-D210 Technical Reference Manual

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 Signal
Number Name
1 FG
2 TXD
3 RXD
*1
4 RTS
*2
6 DSR
7 GND
88
14
1
Signal
Direction
- Frame ground
 Stand-alone connection:
Output
Transmits data to the computer from the this product
 Pass-through/Y-type connection:
Transmits data to the computer from the TM printer.
Input Receives data from the computer.
(Computer -> This product)
Output This indicates whether the display is ready to receive data.
 [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
25
13
Function
*2