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Technical Reference
93
Serial Ports
One serial port is provided on the rear I/O to supply COM2 using an 8-pin RJ45 connector (see
Table 13). The COM2 serial port can be used either as an emergency management port or as a
normal serial port. As an emergency management port (EMP), COM2 is used as a communication
path by the server management software that provides a level of emergency management through
an external modem. Figure 37 describes the serial port’s connections.
Table 13). The COM2 serial port can be used either as an emergency management port or as a
normal serial port. As an emergency management port (EMP), COM2 is used as a communication
path by the server management software that provides a level of emergency management through
an external modem. Figure 37 describes the serial port’s connections.
Figure 37. Serial Ports A and B
Table 13. Serial Port Connector Pinout
Pin
Signal
Description
1
RTS
Request to send
2
DTR
Data terminal ready
3
TXD
Transmit data
4
GND
5
RIA
Ring indicator
6
RXD
Receive data
7
DSR/DCD
Date set ready / data carrier detect
1
8
CTS
Clear to send
1
Use jumper on server board to select