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AT8901
RS232 Management Interface
One RS232 interface (UART0) of the PowerPC 405 GPr is connected to the front panel RJ45
connector, the other one (UART1) is used as programming interface for IPMI.
Table 3-4:
Serial Port (RJ45) Pin Assignment
Signal
Pin
RTS
1
DTR
2
TXD
3
GND
4
GND
5
RXD
6
DSR
7
CTS
8
External connection is established with a straight through Ethernet cable and a RJ45 (female)
to SubD (female) adapter if required. The adapter is described in the following table.
Table 3-5:
Serial console terminal cable interface: RJ45 Female to DB9 Female
RJ45 Female
RJ45 Pin
Number
1
2
3
4
5
6
7
Front View
8
-
-
Signal
Connected
RTS
Y
DTR
Y
TXD
Y
GND
N
GND
Y
RXD
Y
DSR
Y
CTS
N
RI
N
CD
N
Page 3 - 5
Hardware Description
1
8
Description
Request To Send
Data Terminal Ready
Transmit
Ground
Ground
Receive
Data Set Ready
Clear To Send
Ring Indicator
(Not used)
Carrier Detect
(Not used)
DB9 Pin
DB9 Female
Number
8
6
2
-
5
3
4
Front View
7
9
1
AT8901 User Guide
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