Epson TM L90 Technical Reference Guide

146 Appendix
Interface And Connectors
RS-232 Serial Interface
Interface Board Specifications (RS-232 standard)
Item Specifications
Data transfer
method
Serial
Synchronization Asynchronous
Handshake Select one of the following using DIP switch 1-3 or the memory switches (switch
operation/command (operation).
❏DTR/DSR
❏XON/XOFF
Signal level MARK -3 V to -15 V logic "1" /Off
SPACE +3 V to +15 V logic "0" /On
Bit length Select one of the following using DIP switch 1-4 or the memory switches (switch
operation/command (operation).
❏7 bit
❏8 bit
Baud rate Select one of the following using DIP switches 1-7/1-8 or the memory switches
(switch operation/command (operation).
❏115200 bps (can be set only using the memory switches)
❏57600 bps (can be set only using the memory switches)
❏38400 bps (can be set only using the memory switches)
❏19200 bps
❏9600 bps
❏4800 bps
❏2400 bps
[bps: bits per second]
Parity check Select one of the following using DIP switch 1-5 or the memory switches (switch
operation/command (operation).
❏Yes
❏No
Parity selection Select one of the following using DIP switch 1-6 or the memory switches (switch
operation/command (operation).
❏Even
❏Odd
Stop bit 1 or more bits
However, the stop bit of the transfer data from the printer is fixed at 1 bit.
Connector Printer
side
Dsub-25pin (female) connector

Epson TM L90 Specifications

General

Maximum resolution	203 x 203 DPI
Maximum roll diameter	90 mm
Supported paper width	37.5, 79 mm
RS-232 ports	1
Standard interfaces	RS-232
Connectivity technology	Wired
Country of origin	China
Dimensions (WxDxH)	140 x 203 x 148 mm
Flash memory	0.384 MB
Operating temperature (T-T)	5 - 45 °C
Pallet width	800 mm
Pallet height	2600 mm
Pallet length	1200 mm
Pallet width (UK)	1000 mm
Quantity per pallet	112 pc(s)
Quantity per pallet (UK)	168 pc(s)
Quantity per pallet layer	16 pc(s)
Quantity per pallet layer (UK)	24 pc(s)
Package depth	257 mm
Package width	193 mm
Package height	241 mm
Package weight	2560 g
Quantity per pack	1 pc(s)