[Nut-upsuser] Communications with UPS lost: No status from UPS

[Fabio Cecamore]

Hello,
i've a problem, this is my configuration:
- Atlantis Land UPS with serial port
- a generic RS232 to USB cable adapter (QinHeng Electronics HL-340 
USB-Serial adapter for linux).

The problem is in the syslog file where i find:
[...]
Aug 19 09:07:25 ProLiant megatec[1126]: Communications with UPS lost: No 
status from UPS.
Aug 19 09:07:26 ProLiant megatec[1126]: Communications with UPS 
re-established
Aug 19 09:09:36 ProLiant megatec[1126]: Communications with UPS lost: No 
status from UPS.
Aug 19 09:09:36 ProLiant megatec[1126]: Communications with UPS 
re-established
[...]

and using the driver (blazer_ser or megatec, is the same) in debug mode i 
read:

0.000000 debug level is '12'
0.037842 DTR=1, RTS=0
0.041830 send_to_all: SETINFO device.type "ups"
0.041906 send_to_all: SETINFO driver.version "2.4.3"
0.041924 send_to_all: SETINFO driver.version.internal "1.6"
0.041942 send_to_all: SETINFO driver.name "megatec"
[........]
413.251768 Asking for UPS status [Q1]...
415.854720 Q1 => FAILED [timeout]
415.854786 Poll failure [1].
415.854803 Communications with UPS lost: No status from UPS.
415.854825 Asking for UPS status [Q1]...
416.455619 Q1 => OK [(229.8 140.0 229.8 004 49.8 13.6 30.7 00001001]
416.455723 Q1 VALUES => [229.8 140.0 229.8 4.0 49.8 13.6 30.7 00001001]
416.455739 Communications with UPS re-established
416.455766 send_to_all: SETINFO input.voltage "229.8"
416.455791 send_to_all: SETINFO output.voltage "229.8"
416.455813 send_to_all: SETINFO input.frequency "49.8"
[........]

with a infinite loop of this timeout.
What can be the problem ?
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