Hi,
To add to the blend, we've got this to work with a Vanguard. It would
seem that each third party device requires to be tested to see if it
works reliably.
Neil Gregory
Senior Bio-Engineer
WeSTMARC - West of Scotland Mobility and Rehabilitation Centre
Southern General Hospital, Glasgow
Email: [log in to unmask]
Web: www.nhsggc.org.uk/westmarc
Tel - 0844 8113001 (Lo-Call)
Fax - 0141-201 2649
-----Original Message-----
From: A discussion list for Assistive Technology professionals.
[mailto:[log in to unmask]] On Behalf Of James Dean
Sent: 15 March 2012 21:15
To: [log in to unmask]
Subject: Re: DX-ECU and Prog etc
Hi Neil,
We've found at times that the ECU module's common connection to all
outputs can cause issues. This is especially obvious if multiple outputs
are connected to one device, or if there is a current path between
devices - even capacitive coupling via power supplies. The only way
around this is to add an attritional relay or optocoupler to guarantee
full electrical isolation between all accessories.
Cheers,
James Dean
([log in to unmask])
Technical Solutions Australia P/L
109 Ferndale Road, Silvan Vic 3795
Australia
Ph 61 3 9737 9000
Fax 61 3 9737 9111
www.tecsol.com.au
-----Original Message-----
From: A discussion list for Assistive Technology professionals.
[mailto:[log in to unmask]] On Behalf Of Gregory, Neil
Sent: Friday, 16 March 2012 1:34 AM
To: [log in to unmask]
Subject: DX-ECU and Prog etc
Hi,
Tech Question:
I have a problem with using a DX-ECU with a G90 in that the output from
the DX-ECU, although switched appears to give a floating voltage on the
"through switch" causing the Prog to continue to hold a selection. ie on
row/column scanning I can select the row, but the individual item gets
held down and the Prog gives me a load of beeps. Controlling something
else like a Keo works fine.
I'm trying to replicate a report that patient's Echo2 communication
isn't working effectively and think the Prog problem may be the same
issue.
My question to those in the know are whether unexpected outputs have
been experienced with a DX-ECU and what has been done to solve it?
Many thanks in advance.
Neil Gregory
Senior Bio-Engineer
WeSTMARC - West of Scotland Mobility and Rehabilitation Centre Southern
General Hospital, Glasgow
Email: [log in to unmask]
Web: www.nhsggc.org.uk/westmarc
Tel - 0844 8113001 (Lo-Call)
Fax - 0141-201 2649
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