Dm-D110 Standard Model Interface Connectors - Epson DM-D110 Technical Reference Manual

4.2.4 DM-D110 Standard Model Interface Connectors

Type: RJ-45 Connector
4.2.4.1 Display interface connector pin assignments
Display interface connector pin assignments
Pin Signal
Number Name
1 FG
2 TXD
3 RXD
4 DSR
5 DTR
6 SG
7 PS
8 PG
(*1) For a Y-type, pass-through, and standalone connection, refer to the "Connection type" paragraph for details.
(*2) [DTR MARK] can be set by the US v command. This case differs from the above-mentioned [DTR MARK].
Rev. A
Signal
Signal Function
Direction
—
Frame ground
Output
(1) When the DM-D110 is connected with a pass-through or Y-type
connection: Transmits data to the printer.
(2) When the DM-D110 is connected as a standalone: Transmits data to the
host.
Input
Receives data from the host.
Input
Indicates whether the host is ready to receive data.
(1) When the DM-D110 is connected with a Y-type connection (*1) : Unused
(2) When the DM-D110 is connected with a pass-through (*2) :
MARK: The printer is not ready to receive data
SPACE: The printer is ready to receive data.
(3) When the DM-D110 is connected as a standalone:
MARK: The host is not ready to receive data.
SPACE: The host is ready to receive data.
Output
This indicates whether the display is ready to receive data (*2).
MARK: The display is not ready to receive data.
DTR goes to MARK under the following conditions.
(1) The period from when the power is turned on until the display becomes
ready to receive data.
(2) When the self-test is executed.
(3) When the remaining space in the receive buffer becomes 40 bytes or
less.
(4) When MARK is on, if the printer is selected by a peripheral device.
SPACE: The display is ready to receive data.
DTR goes to SPACE under the following conditions.
(1) When the display first becomes ready to receive data after power-on.
(2) When the self-test has ended.
(3) When the remaining space in the receive buffer becomes 50 bytes or
more after it becomes 40 bytes or less.
—
Signal GND
—
Power supply terminal
—
Return wire for power
DM-D110 Technical Reference Guide
Hardware 4-5