IBM Netfinity 3000, User Handbook Manual

Page: 171 / 370

Connecting external options
Parallel port connector
Parallel ports are used to communicate with printers and other
devices, such as some CD-ROM and tape drives. Your server
provides one 25-pin, D-shell connector on the back of the server.
13
1
25
14
This parallel port connector conforms to the Institute of Electrical
and Electronics Engineers (IEEE) Standard 1284. There are three
standard modes of operation:
Ÿ
Standard Parallel Port (SSP)
Ÿ
Enhanced Parallel Port (EPP)
Ÿ
Extended Parallel Port (ECP)
Table 5 shows the pin-number assignments for the parallel port
connector. The signal names for all three modes are shown. SSP
and ECP signal names are the same; EPP signal names that are
different are shown in parentheses.
Table 5. Parallel port connector pin-number assignments
Pin Signal Pin Signal
1 -STROBE (-WRITE) 14 -AUTO FD (-DSTRB)
2 Data 0 15 -ERROR
3 Data 1 16 -INIT
4 Data 2 17 -SLCT IN (-ASTRB)
5 Data 3 18 Ground
6 Data 4 19 Ground
7 Data 5 20 Ground
8 Data 6 21 Ground
9 Data 7 22 Ground
10 -ACK 23 Ground
11 BUSY (-WAIT) 24 Ground
12 PE 25 Ground
13 SLCT
Chapter 4. Installing options
137