Bixolon SRP-350 User Manual

 

Figure 3-7 RS-232C Cable Connection 

Pin No.  Signal Name  Signal Direction

Function 

BODY 

Frame GND 

- 

Frame Ground 

2 TXD  Output 

Transmit 

Data 

3 RXD 

Input 

Receive 

Data 

6 DSR 

Input 

This signal indicates whether the host computer can receive 
data. (H/W flow control) 
  1) MARK(Logic1) : The host can receive a data. 
  2) SPACE(Logic0) : The host can not receive a data. 
  3) The printer transmits a data to the host, after confirming 

this signal. 

  4) When XON/XOFF flow control is selected, the printer 
does 

  not check this signal. 

7 

Signal GND 

- 

Signal Ground 

20 DTR  Output 

This signal indicates whether the printer is busy. (H/W flow 
control) 

1) MARK(Logic1) : The printer is busy. 

  2) SPACE(Logic0) : The printer is not busy. 
  3) The host transmits a data to the printer, after confirming 

 this signal. 

  4) When XON/XOFF flow control is selected, the host does 

  not check this signal. 

Table 3-15 RS-232C Pin Description