Serial ports

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

Serial ports

The most common out-of-band hardware interface is the serial port, also called the COM port. This serial port must be a 16550 Universal Asynchronous Receiver/Transmitter (UART). If your system firmware is compatible with Emergency Management Services, it is recommended that you configure it to use the same serial port settings. Emergency Management Services and the Windows debugger cannot share the same COM port. The system can have only a single out-of-band management port. Windows ServerĀ 2003 operating systems do not support a configuration in which one out-of-band port sends outgoing communication and a different out-of-band port (on a second device) receives incoming data.

For more information about serial ports, see:

For additional information about selecting hardware for Emergency Management Services, see: