USB to 4 Port RS-232 Serial Converter drops out

USB 2.0 - USB 3.0 - FireWire - Hubs - Cables - Adapters
2 posts Page 1 of 1
posnet
New member
Posts: 3
Joined: Wed Nov 30, 2016 6:06 am
by posnet » Wed Dec 20, 2017 2:07 am
Hi,

I'm using a USB to 4 Port RS-232 Serial Converter Lite, 4x DB9 Male (Part No. 42690) for connecting 4 Symbol LI4278 wireless scanner(scanner charging bases are powered by its adapter) at over 50 customer sites.

During operation, the serial converter sometimes drops out and disappeared from windows device manager. Unplugging and plugging the converter again into a USB port makes the converter reconnected. If it happens often in a particular site, I install a powered USB hub between the POS system and the serial converter to give more stable power as I thought USB power drop out causes the issue and it actually helps a lot.

But this time it happens with a powered USB hub installed.

I found the following system event log and I'm wondering what it means.

I re-installed a driver and monitoring the issue and also thinking of replacing the converter if happens again.

But it would be great if anyone can advise where to look and what to do.

Thanks in advance.

System Event Error
Image

- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
<Provider Name="mos24ser_QUADPORT" />
<EventID Qualifiers="49158">5</EventID>
<Level>2</Level>
<Task>0</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2017-12-19T07:25:01.681900600Z" />
<EventRecordID>31002</EventRecordID>
<Channel>System</Channel>
<Computer>POS00</Computer>
<Security />
</System>
+ <EventData>
<Data />
<Binary>000000000100000000000000050006C0140000000000000000000000000000000000000000000000</Binary>
</EventData>
</Event>

+ System

- Provider

[ Name] mos24ser_QUADPORT

- EventID 5

[ Qualifiers] 49158

Level 2

Task 0

Keywords 0x80000000000000

- TimeCreated

[ SystemTime] 2017-12-19T07:25:01.681900600Z

EventRecordID 31002

Channel System

Computer POS00

Security


- EventData


000000000100000000000000050006C0140000000000000000000000000000000000000000000000


--------------------------------------------------------------------------------

Binary data:


In Words

0000: 00000000 00000001 00000000 C0060005
0008: 00000014 00000000 00000000 00000000
0010: 00000000 00000000


In Bytes

0000: 00 00 00 00 01 00 00 00 ........
0008: 00 00 00 00 05 00 06 C0 .......À
0010: 14 00 00 00 00 00 00 00 ........
0018: 00 00 00 00 00 00 00 00 ........
0020: 00 00 00 00 00 00 00 00 ........
LINDY Guy
LINDY Staff
Posts: 152
Joined: Thu Oct 30, 2014 1:10 pm
by LINDY Guy » Wed Dec 20, 2017 9:18 am
Hi Posnet,

Without being able to test with that particular scanner it's difficult to say why this is not working correctly in your set-ups. It could be a power issue however it could also just be some form of incompatibility between the device you are using and the chipset in side the USB to Serial converter.

It may be worth trying a converter that uses a different chipset, for example FTDI or Prolific. Our 4 Port version with an FTDI chipset would be here:

https://www.lindy.co.uk/usb-firewire-c4 ... s-232-p462

Guy
2 posts Page 1 of 1