Can't get terminal on Sun Enterprise 220R

Hi folks, wondering if you can help me.
I recently acquired an Enterprise 220R on the 2nd hand market. I am assured (reliably) that it was working fine before it was disconnected from its previous home, where it was accessed via a console server.
I, however, cannot get a terminal on it. I have tried using 9600-8-n-1 ANSI with no flow control in HyperTerminal COM17, as well as several other combinations, and nothing. Cable setup is as follows:
XP Laptop - USB 232 adaptor - 232-RJ45 adaptor - standard ethernet cable - DB25-RJ45 adaptor - Terminal A on the 220R.
I am able successfully raise a terminal on my Sun Fire V100 immediately using the same adaptor and same HyperTerm settings, in the following cable config:
XP Laptop - USB 232 adaptor - 232-RJ45 adaptor - standard ethernet cable - A LOM on V100.
That tells me:
- that I am using the correct COM port
- that the USB-serial adaptor is working
- that the serial-RJ45 adaptor is working
- that hyperterm is configured correctly
SO: I have tried both straight through and crossover cables on the E220R with no success. I have tried different baud rates, different terminal settings, nothing. both ethernet cables have been tested with a cable tester.
The system is keyed to the power on/off position. Both PSUs are connected and there is no maintenance light.
What am I doing wrong? I assume it's something to do with either Hyperterm settings or my ethernet cable/connector pinouts? I can crimp cables in any configuration if I know what that configuration is. The DB25-RJ45 adaptor came with the box on Serial A so I assume it's the correct one.
Please help as this box needs to be used in production ASAP.
Many thanks
Cheers James
Edited by: jradvan on Sep 21, 2008 12:54 AM

jradvan wrote:
Hi folks, wondering if you can help me.
I recently acquired an Enterprise 220R on the 2nd hand market. I am assured (reliably) that it was working fine before it was disconnected from its previous home, where it was accessed via a console server.
I, however, cannot get a terminal on it. I have tried using 9600-8-n-1 ANSI with no flow control in HyperTerminal COM17, as well as several other combinations, and nothing. Cable setup is as follows:
XP Laptop - USB 232 adaptor - 232-RJ45 adaptor - standard ethernet cable - DB25-RJ45 adaptor - Terminal A on the 220R.Unfortunately, there is no such thing as a "standard" 232<->RJ45 adapter. So the exact wiring of the two adapters you are relevant. This sequence can create either a "straight through", or a "null modem", or something completely different.
You must have a "null modem" setup for this to work, because both the XP and the Sun have DTE wired serial ports.
I am able successfully raise a terminal on my Sun Fire V100 immediately using the same adaptor and same HyperTerm settings, in the following cable config:
XP Laptop - USB 232 adaptor - 232-RJ45 adaptor - standard ethernet cable - A LOM on V100.
That tells me:
- that I am using the correct COM port
- that the USB-serial adaptor is working
- that the serial-RJ45 adaptor is working
- that hyperterm is configured correctly
SO: I have tried both straight through and crossover cables on the E220R with no success. I have tried different baud rates, different terminal settings, nothing. both ethernet cables have been tested with a cable tester."crossover cable"? Like an ethernet crossover cable? That's not useful for serial hookups. A serial "rollover" cable could be useful in some cases, but an ethernet crossover cable won't work well.
What am I doing wrong? I assume it's something to do with either Hyperterm settings or my ethernet cable/connector pinouts? I can crimp cables in any configuration if I know what that configuration is. The DB25-RJ45 adaptor came with the box on Serial A so I assume it's the correct one.I aggree. I think it's the final adapter. You can view the serial connections on this page. If you know the pinouts of that final adapter, you can construct the correct cable:
http://www.sunhelp.org/unix-serial-port-resources/serial-pinouts/
Darren

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