Section 3. Interface Specifications

RS232C Serial Interface

Cable Requirements

DB9

DB25

HOST

INTERCONNECTION

DB25

PRINTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

1

FG

 

 

 

 

 

 

 

 

 

 

 

 

1

FG (Frame Ground)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

3

RD

 

 

 

 

 

 

 

 

 

 

 

 

2

TD (Transmit Data)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

2

TD

 

 

 

 

 

 

 

 

 

 

 

 

3

RD (Receive Data)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

5

CTS

 

 

 

 

 

 

 

 

 

 

 

 

4

RTS (Request to send)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

4

RTS

 

 

 

 

 

 

 

 

 

 

 

 

5

CTS (Clear to Send)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

20

DTR

 

 

 

 

 

 

 

 

 

 

 

 

6

DSR (Data Set Ready)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

6

DSR*

 

 

 

 

 

 

 

 

 

 

 

 

20

DTR (Data Terminal Ready)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

7

SG

 

 

 

 

 

 

 

 

 

 

 

 

7

SG (Frame Ground)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*This connection at the host side of the interface would depend upon the pin that is being used as the Ready/Busy signal by the driving software. Typically on a PC, it would be either CTS (pin 5) or DSR (pin 6) on a DB-25 connector.

Please Note:

SATO does not recommend the use of mechanical data switches commonly called A/B switches, as they are known to damage both the computer and printer serial ports.

PN 9001078

SATO CL408e/CL412e Service Manual

Page 3-7

Rev. B

 

 

Page 67
Image 67
SATO CL412E service manual Cable Requirements, DB9, Host Interconnection, Printer