IBM 86624RY Maintenance Manual - Page 198

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 209 for the location of the connector.) 13 1 25 14 The following table shows the pin-number assignments for the parallel-port connector. Table 4. Parallel port pin-number assignments Pin I/O 1 O 2 I/O 3 I/O 4 I/O 5 I/O 6 I/O 7 I/O 8 I/O 9 I/O 10 I 11 I 12 I 13 I 14 O 15 I 16 O 17 O 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - SPP/ECP Signal −STROBE Data 0 Data 1 Data 2 Data 3 Data 4 Data 5 Data 6 Data 7 −ACK BUSY PE (paper end) SLCT (select) −AUTO FD (feed) −ERROR −INIT −SLCT IN Ground Ground Ground Ground Ground Ground Ground Ground EPP Signal −WRITE Data 0 Data 1 Data 2 Data 3 Data 4 Data 5 Data 6 Data 7 −ACK −WAIT PE (paper end) SLCT (select) −DSTRB −ERROR −INIT −ASTRB Ground Ground Ground Ground Ground Ground Ground Ground 190 Netfinity Server HMM