IBM 8659-71Y Maintenance Manual - Page 139

Parallel Port Connector

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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 (SPP) Enhanced Parallel Port (EPP) Extended Capability Port (ECP) Table 6 shows the pin-number assignments for the parallel port connector. The signal names for all three modes are shown. SPP and ECP signal names are the same; EPP signal names that are different are shown in parentheses. Table 6. Parallel Port Connector Pin-Number Assignments Pin Signal 1 -STROBE (-WRITE) 2 Data 0 3 Data 1 4 Data 2 5 Data 3 6 Data 4 7 Data 5 8 Data 6 9 Data 7 10 -ACK 11 BUSY (-WAIT) 12 PE 13 SLCT Pin Signal 14 -AUTO FD (-DSTRB) 15 -ERROR 16 -INIT 17 -SLCT IN (-ASTRB) 18 Ground 19 Ground 20 Ground 21 Ground 22 Ground 23 Ground 24 Ground 25 Ground Netfinity 5000 - Type 8659 131

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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 (SPP)
±
Enhanced Parallel Port (EPP)
±
Extended Capability Port (ECP)
Table
6 shows the pin-number assignments for the parallel
port connector.
The signal names for all three modes are
shown.
SPP and ECP signal names are the same; EPP
signal names that are different are shown in parentheses.
Table 6. 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
Netfinity 5000 - Type 8659
131