Filter
Top Products
Appendix A - Specifications
107
Serial Port Specifications
Interface RS-232
Baud Rate (bps) 300,600,1200 2400,4800,9600 19200, 38400s
Protocol Hardware, XON/XOFF, None, Both
Parity Even/Odd/None
Data Bits 7 or 8
Stop Bits 1 or 2
Connector Male DB-9
Cable < 15 meters
Pin Purpose Direction
1 Carrier Detect (CD) To server
2 Receive (Rx) To server
3 Transmit (Tx) To printer
4 Data Terminal Ready To printer
5 Signal Ground (GND) None
6 Data Set Ready (DSR) To server
7 Request to Send (RTS) To printer
8 Clear to Send (CTS) To server
9 Ring Indicator (RI) To server
Figure 46 Serial cable pinouts Apple LaserWriter