TM-L90/TM-L90 with Peeler Technical Reference Guide

Appendix A

Interface And Connectors

A.1 RS-232 Serial Interface

A.1.1 Interface board specifications (RS-232 standard)

Item

 

Specifications

 

 

 

Data transfer

 

Serial

method

 

 

 

 

 

Synchronization

 

Asynchronous

 

 

 

Handshake

 

Select one of the following using DIP switch 3 or the memory switches (switch

 

 

operation/command (operation).

 

 

DTR/DSR

 

 

XON/XOFF

 

 

 

Signal level

MARK

-3 V to -15 V logic "1" /On

 

 

 

 

SPACE

+3 V to +15 V logic "0" /Off

 

 

 

Bit length

 

Select one of the following using DIP switch 4 or the memory switches (switch

 

 

operation/command (operation).

 

 

7 bit

 

 

8 bit

 

 

 

Baud rate

 

Select one of the following using DIP switches 7/8 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 5 or the memory switches (switch

 

 

operation/command (operation).

 

 

Yes

 

 

No

 

 

 

Parity selection

 

Select one of the following using DIP switch 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

Dsub-25pin (female) connector

 

side

 

 

 

 

Rev. B

Interface And Connectors A-1

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Image 129
Epson L90 manual Interface And Connectors, RS-232 Serial Interface, Interface board specifications RS-232 standard