6.3 Serial Ports
The server has two serial
ports, labeled SERIAL MGT and TTYA. Default Serial Connection Settings lists the default serial
connection settings for both serial ports.
Table A-4 Default Serial Connection Settings
|
|
Connector |
SERIAL MGT or l0l0l |
Rate |
9600 baud |
Parity |
None |
Stop bits |
1 |
Data bits |
8 |
|
A.3.1 Serial Management Port
The serial management connector (labeled SER MGT) is an RJ-45
connector that can be accessed from the rear panel. This port is
the default connection to the server. Use this port only for
server management.
 | Caution - You must use a shielded Ethernet
cable to maintain your server's NEBS compliance. The cable's shield
must be grounded at both ends. |
Serial Management Port Pin Numbering shows the pin numbering of the
serial management port. Serial Management RJ-45 Connector Signals describes
the pin signals.
Figure A-3 Serial Management Port Pin Numbering
Table A-5 Serial Management RJ-45 Connector Signals
|
|
|
|
1 |
Request to Send |
5 |
Ground |
2 |
Data Terminal Ready |
6 |
Receive Data |
3 |
Transmit Data |
7 |
Data Set Ready |
4 |
Ground |
8 |
Clear to Send |
|
If you need to connect to the SERIAL MGT port using a cable
with either a DB-9 or a DB-25 connector, use a supplied adapter
to perform the crossovers given for each connector. The supplied
RJ-45 to DB-9 and RJ-45 to DB-25 adapters are wired as described
in RJ-45 to DB-9 Adapter Crossovers and RJ-45 to DB-25 Adapter Crossovers.
A.3.1.1 RJ-45 to DB-9 Adapter Crossovers
Table A-6 RJ-45 to DB-9 Adapter Crossovers
|
|
|
|
|
|
1 |
RTS |
8 |
CTS |
2 |
DTR |
6 |
DSR |
3 |
TXD |
2 |
RXD |
4 |
Signal Ground |
5 |
Signal Ground |
5 |
Signal Ground |
5 |
Signal Ground |
6 |
RXD |
3 |
TXD |
7 |
DSR |
4 |
DTR |
8 |
CTS |
7 |
RTS |
|
A.3.1.2 RJ-45 to DB-25 Adapter Crossovers
Table A-7 RJ-45 to DB-25 Adapter Crossovers
|
|
|
|
|
|
1 |
RTS |
5 |
CTS |
2 |
DTR |
6 |
DSR |
3 |
TXD |
3 |
RXD |
4 |
Signal Ground |
7 |
Signal Ground |
5 |
Signal Ground |
7 |
Signal Ground |
6 |
RXD |
2 |
TXD |
7 |
DSR |
20 |
DTR |
8 |
CTS |
4 |
RTS |
|
A.3.2 Serial Port TTYA
The port labeled TTYA accepts a DB-9 connector. Use this port
for general purpose serial data transfers. Serial Port (TTYA) Pin Numbering shows the pin numbering of the
serial port. Serial Port (TTYA) Connector Signals describes
the pin signals.
Figure A-4 Serial Port (TTYA) Pin Numbering
Table A-8 Serial Port (TTYA) Connector Signals
|
|
|
|
1 |
Data Carrier Detect |
6 |
Data Set Ready |
2 |
Receive Data |
7 |
Request to Send |
3 |
Transmit Data |
8 |
Clear to Send |
4 |
Data Terminal Ready |
9 |
Ring Indicate |
5 |
Ground |
|
|
|