Netra X1, t1 Model 105/AC200/DC200:
These Netras have RJ-45 connectors for serial ports. RJ45 Connector
--------------
1 - RTS
2 - DTR
3 - TXD
4 - REF (GND)
5 - REF (GND)
6 - RXD
7 - DSR
8 - CTS
These machines have no DCD line on their serial ports, so you can not run a
modem on these serial ports. Don't waste your time trying to make it work.
On the Netra X1, Port A LOM is dedicated to the Lights Out Management (LOM)
device in the server.
Sun has more good information on this machine's serial ports in the Netra X1
Server User's Guide (PDF).
Some say that the Cisco Modem RJ45 - DB25 adapter works just fine as a
replacement for the Sun adapter with a terminal on the console port of an
X1. It probably works well with the other systems listed in this section,
too. The Cisco adapter is light grey, embossed with MODEM CAB-5MODCM on one
side and 29-0881-01 on the other.
Below are pinouts for a Netra RJ45 - DB25 RS232 serial converter cable, part
number 530-2889-01 and a hand-crafted Netra RJ45 - DB9 serial cable. (There
is also a part number 530-2889-01 which has the same pinout except that the
RJ-45 BODY (black) is wired to RS232 pin 1 GND.)
Note that these are wired DCE. If you use the supplied Netra RJ-45 to DB25
RS232 adapter, you get a null-modem cable, suitable for a terminal
connection. (The webmistress has received conflicting information on the
supplied Netra adapter. Verify your pinout before you rely on it.)
Netra Sun serial DB25 Netra DB9 adapter
RJ-45 RS-232 adapter RJ-45 RS-232 Pin
Pin part # 530-2889-01 Pin (make your
own cable)
------ ------------------ -------------- ------------
1 (RTS) blue --- 5 (CTS) 1 (RTS) blue --- 8 (CTS)
2 (DTR) orange --- 6 (DSR) 2 (DTR) orange --- 6 (DSR)
3 (TXD) black --- 3 (RXD) 3 (TXD) black --- 2 (RXD)
4 (GND) red --- 7 (GND) 4 (GND) red --- 5 (GND)
5 (GND) green --- 7 (GND) 5 (GND) green --- 5 (GND)
6 (RXD) yellow --- 2 (TXD) 6 (RXD) yellow --- 3 (TXD)
7 (DSR) brown --- 20 (DTR) 7 (DSR) brown --- 4 (DTR)
8 (CTS) gray --- 4 (RTS) 8 (CTS) gray --- 7 (RTS)
If you want to connect the serial port to the terminal server's (or other
device) rj45, you need a cable I call a rollover.. ie your 8 pinout colours
get reversed on the other side, as opposed to an ether which remains the
same.
Hope this helps,
Shal
shal..
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