[BC] ESE master clock and 1 minute pulse

[Bruce Doerle]

Jeff,
 
I downloaded the manual and you have pulse output the RS-232 DB9 connector.  You just need to make an interface.
 

DB-9 Pin Function
1 N/C
2 RS-232 TxD
3 RS-232 RxD
4 1 PPS (20% duty)
5 1 PPS (50% duty)
6 Relay (HR option)
7 Relay (HR option)
8 GPS Lock
9 Ground

 
1 PPS: The most accurate time information available from the ES-102U is that provided by the 1
PPS Output (one pulse per second). Two (2) outputs are provided: a 20% duty signal
specified as being within 500 hS of UTC, and a 50% duty signal which is within 1 mS of
UTC. The 20% duty signal is obtained directly from the receiver. The 50% duty signal is
regenerated by the timekeeping microprocessor; this signal is isolated from dropouts due to
signal loss and should be used for long-term timekeeping purposes. Both signals are
positive edge true. The 1 PPS can be used for synchronization purposes in a variety of
applications. One such application allows the 1 PPS to drive an Impulse Driver (ES-165 or
ES-162A) which, in turn, can drive "Analog" Impulse Clocks (ES-168 or ES-162S and
Favags).
 
 
If you had the HR relay option, you could use that.
 
Bruce

>>> <Xmitters at aol.com> 3/30/2007 10:58:29 AM >>>


Hello:

I am looking for an inexpensive device that will take ESE time code from my 
ES-102 master clock, and give me either a contact closure or open collector to 
ground at 60 second intervals.  Have not been able to find such a device. 
Probably would not be hard to make, given an old clock slave with a bad display
. I 
would rather not build something unless there is no other choice.


Jeff Glass
WNIU WNIJ
Northern Illinois University

DEC 6180 Win NT4.0 SP6A AOL ver 5.0
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