That Nortel board you have there looks exactly like the board I got in my
Nortel NTBW50AA GPSTM. You can find the book on-line, look for Dual Voltage
Global Positioning System Timing Module (GPSTM) OEM General Specification.
Yes the power supply is speced from 24 to 48VDC plus or minus. They
: Tue, Dec 24, 2013 4:10 pm
Subject: Re: [time-nuts] Trimble/Nortel 45000 GPS Locked Reference
Oscillatorboard
That Nortel board you have there looks exactly like the board I got in my
Nortel
TBW50AA GPSTM. You can find the book on-line, look for Dual Voltage Global
ositioning System Timing
On Tue, Dec 24, 2013 at 9:06 AM, quartz55 quart...@hughes.net wrote:
That Nortel board you have there looks exactly like the board I got in my
Nortel NTBW50AA GPSTM. You can find the book on-line, look for Dual
Voltage Global Positioning System Timing Module (GPSTM) OEM General
Brian wrote:
Just because it has a bridge to allow connection of floating +24VDC or
-48VDC doesn't mean it is a good idea to apply AC. The input filter caps
may not be designed to handle the ensuing ripple current. I would tread
lightly in this area.
Not only that, the value of the filter cap
Hi Dave,
Thanks for your post.
I'd like to see some of your LH traces if you don't mind...
Do you mean with the Lady Heather software?
I'll leave it running a while and collect some data.
Yes, I did hesitate running it on AC, but it draws little current and
does seem to be happy enough.
