Filter
Top Products
Installations
24
COM1 RS-232 serial port connector (D-Sub 9-pins male): COM1
Pin # Assignment Pin # Assignment
1 DCD (Data Carrier Detect) 6 DSR (Data Set Ready)
2 RXD (Receive Data) 7 RTS (Request to Send)
3 TXD (Transmit Data) 8 CTS (Clear to Send)
4 DTR (Data Terminal Ready) 9 RI (Ring Indicator)
5 Ground
y Figure:
Parallel port connector (D-Sub 25-pins female): LPT1
Pin # Assignment Pin # Assignment
1 Line Printer Strobe 14 Auto Feed
2 PD 0, Parallel Data 0 15 Error
3 PD 1, Parallel Data 1 16 Initialize
4 PD 2, Parallel Data 2 17 Select
5 PD 3, Parallel Data 3 18 Ground
6 PD 4, Parallel Data 4 19 Ground
7 PD 5, Parallel Data 5 20 Ground
8 PD 6, Parallel Data 6 21 Ground
9 PD 7, Parallel Data 7 22 Ground
10 ACK, Acknowledge 23 Ground
11 Busy 24 Ground
12 Paper Empty 25 Ground
13 Select 26 ---
y Figure:
5
9
1
6
1
14
13
25