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 male): 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