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:
Standard Parallel Port (SSP)
Enhanced Parallel Port (EPP)
Extended Parallel Port (ECP)
Table 4 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 4. 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
101
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