IBM 21Y Manual De Usuario
Installing options
63
•
One keyboard port
•
One auxiliary pointing device (mouse) port
•
Two serial ports
•
Two Universal Serial bus (USB) ports
•
One Ethernet port
Parallel port
The server has one parallel port. This port supports three
standard Institute of Electrical and Electronics Engineers
(IEEE) 1284 modes of operation: Standard Parallel Port
(SPP), Enhanced Parallel Port (EPP), and Extended Capa-
bility Port (ECP).
standard Institute of Electrical and Electronics Engineers
(IEEE) 1284 modes of operation: Standard Parallel Port
(SPP), Enhanced Parallel Port (EPP), and Extended Capa-
bility Port (ECP).
Viewing or changing the parallel-port
assignments
assignments
You can use the built-in Configuration/Setup Utility program
to configure the parallel port as bidirectional; that is, so that
data can be both read from and written to a device. In bidi-
rectional mode, the server supports the ECP and EPP
modes.
to configure the parallel port as bidirectional; that is, so that
data can be both read from and written to a device. In bidi-
rectional mode, the server supports the ECP and EPP
modes.
To view or change the parallel-port assignment:
1. Restart the server and watch the monitor screen.
2. When the message
Press F1 for Configura-
tion/Setup
appears, press F1.
3. From the main menu, select Devices and I/O Ports;
then, press Enter.
4. Select the parallel port; then, use the arrow keys to
advance through the settings available.
Note: When you configure the parallel port as bidirec-
tional, use an IEEE 1284-compliant cable. The
maximum length of the cable must not exceed 3
meters (9.8 feet).
maximum length of the cable must not exceed 3
meters (9.8 feet).
5. Select Save Settings; then, select Exit Setup to exit
from the Configuration/Setup Utility main menu.
Parallel port connector
The following table shows the pin-number assignments for
the 25-pin, female D-shell parallel-port connector on the rear
of the server.
the 25-pin, female D-shell parallel-port connector on the rear
of the server.
Table 7. Parallel-port connector pin-number assignments
Pin
I/O
SPP/ECP Signal
EPP Signal
1
O
-STROBE
-WRITE
2
I/O
Data 0
Data 0
3
I/O
Data 1
Data 1
4
I/O
Data 2
Data 2
5
I/O
Data 3
Data 3
6
I/O
Data 4
Data 4
13
1
25
14