Specifications

Confidential
EPSON
TITLE
SHEET
REVISION
NO.
SHEET NEXT
E
DM-D110
Specification
(STANDARD)
8 7
2.3 Connector Signal Assignments
Table 2.3.1 Connector Signal Assignments
Pin
Number
Signal
Name
Signal
Direction
Function
1 FG - Frame ground
2 TXD Output 1) When the DM-D110 is connected with the data pass through (*1):
Transmit data to the printer
2) When the DM-D110 is connected in a stand-alone:
Transmit data to the host
3 RXD Input Receive data from the printer
4 DSR Input This indicates whether the printer is ready to receive data.
1) When the DM-D110 is connected with a data pass through (*1):
[MARK]: The printer is not ready to receive data
[SPACE]: The printer is ready to receive data
2) When the DM-D110 is connected in a stand-alone:
[MARK]: The host is not ready to receive data
[SPACE]: The host is ready to receive data
5 DTR Output This indicates whether the display is ready to receive data (*2).
[SPACE] The display can receive data.
[MARK] The display cannot receive data.
[DTR MARK]
DTR goes to MARK under the following conditions:
➀ The period from when the power is turned on to when the
display first becomes ready to receive data.
➁ When the self-test is executed.
➂ When the remaining space in the receive buffer becomes 40
bytes or less (buffer-full state).
➃ When [DSR MARK] is on, if the printer is selected by a
peripheral device command. (When the DM-D110 is connected
with the data pass through.) (*1)
[DTR SPACE]
DTR goes to SPACE under the following conditions:
➀ When the display first becomes ready to receive data after
power-on.
➁ When the self-test has ended.
➂ When the remaining space in the receive buffer becomes 50
bytes or more after it became 40 bytes or less once.
6 SG - Signal GND
7 PS - Power supply terminal
8 PG - Flyback line for power supply
NOTES: (*1) For the data pass through and the stand alone, refer to Section 3.2.1 Connection methods
for detail.
(*2) [DTR MARK] can be set by the US v command. This case differs from the
above-mentioned [DTR MARK]. Refer to the US v command in Section 4, Command
Descriptions.