OCPRF100 MP Server System Technical Product Specification

Revision 1.0

4.2.2Serial Ports

The I/O carrier provides two stacked RS-232C serial ports (the top one is COM1 and the bottom one is COM2). They are D-subminiature 9-pin connectors. Each serial port can be enabled separately with the configuration control provided on the I/O carrier.

The COM2 serial port can be used either as an emergency management port or as a normal serial port. As an emergency management port, COM2 is used as a communication path by the server management RS-232 connection to the FPC on the front panel board. This provides a level of emergency management through an external modem. The RS-232 connection can be monitored by the FPC when the system is in a powered down (standby) state. For additional information, see the Emergency Management Port v1.0 Interface External Product Specification.

Table 4-5: Serial Port Connectors

 

Pin

Signal

 

 

 

 

 

 

1

DCD

 

 

 

 

 

 

2

RXD

 

 

 

 

 

 

3

TXD

 

 

 

 

 

 

4

DTR

 

 

 

 

 

 

5

GND

 

 

 

 

 

 

6

DSR

 

 

 

 

 

 

7

RTS

 

 

 

 

 

 

8

CTS

 

 

 

 

 

 

9

RIA

 

 

 

 

 

 

 

 

 

Figure 4-3: Serial Port Connector

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