[time-nuts] Information about FTS-1200
bg at lysator.liu.se
Sun Jul 3 17:35:49 EDT 2005
Thanks for all help!
My FTS-1200 behaves like this,
Pinout #1,#5 Power & EFC return
#2 EFC (0-10V)
#6 Oven monitor (4.7V at start, 3.5V at steady state)
#8 24V DC ((22V to 30V) @25C & 24V; 0.56A at start, 0.09A at
EFC range is about 3.5Hz from 0V to +10VR. Not very linear 0.2Hz/V -
0.3Hz/V in the low to middle range, 0.5Hz/V in the upper voltage
Current draw 0.16A 20 minutes after cold start, going below 0.10A
after 40 minutes.
Two outputs @ 1Vrms, two at 0.5Vrms.
Some specifications (from data sheet sent to me)
Output freq 5MHz
Aging per day 1x10-10
Short term 1s 1x10-12
Data sheet tells the FTS 1200 is part of the FTS 1000 series, which
also includes the 5MHz FTS 1000A, 10MHz FTS 1002A and 15MHz FTS 1003A
> ----- Original Message -----
> From: <bg at lysator.liu.se>
> To: "Discussion of precise time and frequency measurement"
> <time-nuts at febo.com>
> Sent: Wednesday, June 29, 2005 2:53 PM
> Subject: Re: AW: [time-nuts] Information about FTS-1200
> > My unit powers up run like this
> > Pin #5 GND
> > Pin #8 PWR (+24V DC)
> > Pin #1 is also Ground
> > The seller told me
> > #1 EFC- (which I do not understand since its GND)
> > #2 EFC+
> > #5 GND
> > #8 24VDC
> > A voltage on pin#2 changes the frequency, so #2 is most probably EFC.
> > >From a private response I learned that pin #6 is Oven Monitor. I have not
> > checked this yet on my unit.
> > --
> > Björn
More information about the time-nuts