Datasheet

Functional Architecture Intel

Server Board S5000PAL/S5000XAL TPS

Revision 2.0

Intel order number: D31979-011

stack to enable IPMI remote management over LAN. BMC LAN Channel 1 is assigned the NIC1

MAC address + 2, and BMC LAN Channel 2 is assigned the NIC1 MAC address + 3.

3.5 Super I/O

Legacy I/O support is provided by using a National Semiconductor* PC87427 Super I/O device.

This chip contains all of the necessary circuitry to support the following functions:

 GPIOs

 Two serial ports

 Keyboard and mouse support

 Wake up control

 System health support

3.5.1.1 Serial Ports

The server board provides two serial ports: an external RJ45 serial port, and an internal DH10

serial header.

Serial A is an optional port accessed through a 9-pin internal DH-10 header. A standard DH10

to DB9 cable can be used to direct the Serial A port to the rear of a chassis. The Serial A

interface follows the standard RS232 pin-out as defined in the following table.

Table 7. Serial A Header Pin-out

Pin Signal Name Serial Port A Header Pin-out

1 DCD

2 DSR

3 RX

4 RTS

5 TX

6 CTS

7 DTR

8 RI

9 GND

The rear RJ45 Serial B port is a fully functional serial port that can support any standard serial

device. Using an RJ45 connector for a serial port allows direct support for serial port

concentrators, which typically use RJ45 connectors and are widely used in the high-density

server market. For server applications that use a serial concentrator to access the system

management features of the server board, a standard 8-pin CAT-5 cable from the serial

concentrator is plugged directly into the rear RJ45 serial port.

To allow support for either of two serial port configuration standards, a jumper block located

directly behind the rear RJ45 serial port must be configured appropriately according to the

desired standard. For serial concentrators that require a DCD signal, the jumper block must be

configured with the serial port jumper over pins 1 and 2. For serial concentrators that require a

DSR signal (Default), the jumper block must be configured with the serial port jumper over pins

3 and 4. Pin 1 on the jumper is identified by “*”.

Note: By default, the rear RJ45 serial port is configured to support a DSR signal. This

configuration is compatible with the Cisco* standard.