7.9 Set Programmable Pulse A and B
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7.9
Set Programmable Pulse A and B
There are two independent programmable pulse outputs available in the Model 1094B: Pro-
grammable Pulse A and Programmable Pulse B. Pulses may be connected at the following ports:
•
Prog Pulse A
, Available on Timing Outputs 1 and 2, and on COM1.
•
Prog Pulse B
, Available on Timing Outputs 3 and 4, and on COM2.
Each of these outputs can be set in one of several modes, including:
7.9.1
Programmable Pulse A
•
Pulse Per Second
, pulses occur after a fractional number of seconds have elapsed each
second.
•
Pulse Per Minute
, pulses occur at the designated time each minute
•
Pulse Per Hour
, pulses occur at the designated time, each hour
•
Pulse Per Day
, pulses occur at the designated time each day
•
Single Trigger
, pulses occur at the designated time each year
•
Slow Code UTC
, Slow Code is a programmable pulse with a voltage that is held high and
goes low for 6 seconds on the day, 4 seconds on the hour and 2 seconds on the minute.
•
Seconds-Per-Pulse
, pulses occur after the chosen number seconds have elapsed, from 0 to
60,000, programmed in 10 millisecond increments.
7.9.2
Programmable Pulse B
Programmable Pulse B has all of the features of Programmable Pulse A, but also includes:
•
Frequency Mode
, allows the 1094B to produce a square wave on the chosen port, from 1
to 1000 pulses per second, 50 percent duty cycle.
•
Auxiliary IRIG-B Mode
, allows the 1094B to produce an alternate IRIG-B timing signal,
different than what is set in Main IRIG-B. It allows for a different time zone and capability
of switching the IEEE 1344 mode ON or OFF.
7.9.3
Programmable Pulse Signal Levels
Due to the different output ports available, the programmable pulse feature is able to produce
pulses at the following signal levels:
•
5 V, CMOS
, available at all timing outputs.
•
300 V FET
, available at all timing outputs, for open drain signals.
•
RS-232 Levels
, available with Programmable Pulse A on COM1, and B on COM2.
•
RS-485 Levels
, available with Programmable Pulse A on COM1, and B on COM2.
•
Relay Contacts
, available with Programmable Pulse A only. See Section 5.3.
