IBM 866441Y - Netfinity 5600 - 8664, Hardware Maintenance Manual

Page: 156 / 276

Some application programs use only certain ports, and
some modems are designed for use only at certain
communication port addresses. You might need to use the
Configuration/Setup Utility program to change
communication port address assignments to resolve
conflicts.
Management port C:
The server has a dedicated
system-management I/O port. This port can be used to
attach a modem that is dedicated to communication with
the Netfinity Advanced System Management Processor.
The connector on the back of the server and the
pin-number assignments are the same as for the serial
ports.
Parallel port:
The parallel port usually is used to
communicate with printers, and transfers data one byte at
a time. The parallel port has a 25-pin, female D-shell
connector on the back of the server. It support three
standard IEEE 1284 modes of operation: Standard
Parallel Port (SPP), Enhanced Parallel Port (EPP), and
Extended Capability Port (ECP). (See “Input/output
connectors and expansion slots” on page 91 for the
location of the connector.)
13 1
25 14
The following table shows the pin-number assignments for
the parallel-port connector.
Table 3. Parallel port 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
7 I/O Data 5 Data 5
8 I/O Data 6 Data 6
9 I/O Data 7 Data 7
10 I
−
ACK
−
ACK
11 I BUSY
−
WAIT
12 I PE (paper end) PE (paper end)
13 I SLCT (select) SLCT (select)
14 O
−
AUTO FD (feed)
−
DSTRB
15 I
−
ERROR
−
ERROR
16 O
−
INIT
−
INIT
17 O
−
SLCT IN
−
ASTRB
18 - Ground Ground
19 - Ground Ground
20 - Ground Ground
21 - Ground Ground
22 - Ground Ground
23 - Ground Ground
24 - Ground Ground
25 - Ground Ground
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Netfinity Server HMM