[SunRay-Users] SRWC Patch 127556-02

Joseph Chiong joseph at esuria.com.bn
Tue Feb 17 09:45:06 EET 2009


Thanks for your help. I am using the built-in COM port B. If I use COM 
port A, the printer did not respond to any print job. I have yet to find 
a working USB-to-Serial adapter in this part of the world. I have tried 
Keyspan USA-19HS and ATEN UC-232A. Both are not recognized by utseriald 
and thus no dev path is created.

Can you advice what would be the best first step to diagnose the 
problem? Do you think it is related to parity mismatch? Both the printer 
and the application are set to EVEN parity. Can UTTSC redirect the 
serial communication properly with utseriald having the default value of 
NONE parity?


ottomeister wrote:
> On Fri, Feb 13, 2009 at 3:48 PM, Joseph Chiong <joseph at esuria.com.bn> wrote:
>> I have SRWC 2.1 installed in the test environment. It looks like the serial
>> port data dropouts and handling problem are still there. For example, a
>> print job sent to a serial printer will end up printing the first half
>> correctly and second half junk characters such as "*******". As a
>> comparison, the same print job using Windows RDP client is working fine.
>> Are you aware of any reported problem currently in the process of fixing
>> related to serial port for SRWC 2.1?
> There are some serial-port bugs still open for SRCS 2.1 and for SRSS
> but I don't see any that match this description.  Your best bet for getting
> this diagnosed and fixed is to open a support call with Sun.
> Which serial port are you using?  One of the built-in serial ports, or a
> USB-to-serial adapter?
> If you happen to be using a built-in port on a Sun Ray 170 then make
> sure you're using the port that understands RTS/CTS flow-control
> signalling, in case the printer depends on those to prevent data loss
> through overflow.  That's Port B.  Port A on the 170 does not understand
> OttoM.
> __
> ottomeister
> Disclaimer: These are my opinions.  I do not speak for my employer.
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Joseph Chiong
eSuria Mentari Systems Sdn Bhd
Unit 9, 1st Floor, Block A
Kiarong Complex
Bandar Seri Begawan BE1318
Brunei Darussalam
Ph: 673-2423721
Mobile: 673-8145285
Email: joseph at esuria.com.bn
Web: http://www.esuria.com.bn

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