Solaris Sparc5 and connecting with a PC via Hyper terminal

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# 1  
Old 09-24-2001
Solaris Sparc5 and connecting with a PC via Hyper terminal

I am trying to connect to a sparc5 with my PC via a null modem cable from serial port to serial port. I do not have a sun monitor so I am trying to use my PC. I am unsuccessful in even making the basic connection to the sparc box. Any ideas on how to work around this?
# 2  
Old 09-24-2001
On many Sparc boxes, there is a single
25 pin, serial connector that actually has BOTH
serial termial ports (ttyA and ttyB) wired to
it. This required a "Y" adaptor so that the
pinouts are correct to your null modem.

Is this the case with yours?
# 3  
Old 09-25-2001
make sure you unplug the keyboard to enable the serial port.
# 4  
Old 09-26-2001
I have two 25 pin serial ports, A and B. Is this an odd config? I purchased the box from my company as they were retiring it from service.
# 5  
Old 09-26-2001
No it's not an odd configuration.
Some of the smaller boxes only have the single
connector. Fortunately, you don't have to deal
with that "Y" adaptor.

Have you tried unplugging the keyboard as
Optimus_P suggested?
# 6  
Old 09-26-2001
Unfortunately I don't have a keyboard. I will have to use my PC via hyperterminal to configure the sun box. Then I will have to work via telnet. Not much fun.
# 7  
Old 09-27-2001
It's not as easy as it should be. I have never figured out how to connect to the console through the ASCII console port using Windows HyperTerminal, but would be interested in how it works. I do have a cable with the correct pinout to go from the DB9 COM1 port on the PC to the DB25 console port on the Sun box, but don't know what the actual pinout is. I am sure you can find it on .Most Sun boxes use the same pinout, the new Netra T1's use a Cisco pinout. Anyway, once you have the correct cable, I know that ProComm will connect with the setting at 9600 baud and 8,n,1. Once you can connect to the host (press enter for a prompt), you can change the input and output device to ttya. From the ok prompt, enter:
setenv input-device ttya
setenv output-device ttya

or from the shell as root:
eeprom input-device=ttya
eeprom output-device=ttya

On a side note, though I didn't spend much time on it, I was unable to get an Ultra 10 to talk on the serial port, it would not boot without a keyboard/monitor Smilie We have an Ultra 5 at work that has no video card and the serial port works fine.

Sorry I can't help more.

Last edited by 98_1LE; 09-27-2001 at 12:10 AM..
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