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15.2 Sequence Control Instructions
15.2.1 Request/Clear a Sequence
A previously programmed sequence can be 'loaded' using the
following steps:
1.
Press SEQUENCE and verify that the SEQUENCE
indicator lights.
2.
Key in the sequence number using the numeric keypad. This
must be a number from 1 to 60.
3.
Press ENTER.
Note that since sequences may use more than one monitor,
all monitors required for this sequence must be available by
not having a sequence currently on them. This rule is
overridden if the same user or a user with a higher priority
than the user who loaded any conflicting sequences attempts
to load the new one. It is also possible to unload a sequence
by entering no data for the sequence number. This will set
the on-screen status prompt to '00' and free the monitors for
other use.
EXAMPLE: SEQUENCE 10 ENTER
The above example 'loads' sequence number 10 into the monitor
currently 'connected' to the keyboard. Note that this action does
not start the sequence running. The status display area of the
monitor will indicate the sequence number in the appropriate
location if the status display option has not been disabled.
EXAMPLE: SEQUENCE ENTER
This example unloads any sequence from the monitor currently
connected to the keyboard.
15.2.2 Run a Sequence
To run a sequence currently 'loaded' in the monitor, press RUN.
EXAMPLE: RUN
If the sequence was stopped, the above RUN command will start
it sequencing. The direction of the sequencing will be indicated
in the monitor status display by a directional arrow and the letter
'R' to the right of the sequence number (if the status display
mode is selected). If RUN is pressed while a sequence is already
running, the switcher goes immediately to the next step in the
sequence, and continues to run. Holding RUN down produces a
'quick-scan' effect. If RUN is pressed when no sequence is
'loaded', an error will result. If the monitor is in alarm, the RUN
key will control the switching of alarm video rather than a loaded
sequence.
15.2.3 Stop a Running Sequence
To stop a running sequence, press HOLD.
EXAMPLE: HOLD
The above command will stop a sequence if one is currently
running. If the sequence is already stopped, pressing HOLD will
have no effect. If no sequence is currently 'loaded', pressing
HOLD will result in an error condition. The monitor status
display will show an 'S' to the right of the sequence number. If
the monitor is in alarm, the HOLD key will stop the alarm
switcher rather than a loaded sequence.
15.2.4 Controlling the Direction of a Sequence
The direction of executing steps can be set to forward or reverse;
the sequence can also be manually stepped with the following
commands:
1.
To set the sequence direction forward and go to the next
step, press NEXT.
2.
To set the sequence direction reverse and go to the previous
step, press PREVIOUS.
If NEXT is pressed with the sequence in the stop state, the
sequence switches forward and remains stopped If the sequence is
running when NEXT is pressed, it immediately goes to the next
step and continues to run. The same is true for the PREVIOUS
key, but in the reverse direction./ If either NEXT or PREVIOUS
is held down, a 'quick-scan' effect switching at a rate of
approximately two steps per second will take place. If no sequence
is 'loaded', pressing NEXT or PREVIOUS will produce an error
indication. When sequences are first 'loaded', their direction
defaults to forward.
EXAMPLE: PREVIOUS
The above command pressed while a camera sequence is running
will reverse the sequence. Also note that if PREVIOUS is pushed
while in HOLD and the display is showing the forward prompt,
the first push will change the direction only, and a second push
will then switch to the previous step. The same is true for NEXT
in the opposite direction. The monitor status display will show
an arrow pointing either up or down indicating the direction of
the sequence. The arrow will be to the right of the sequence
number, either above or below the sequence run (R) or stopped
(S) indicator. If the monitor is in alarm, the PREVIOUS and
NEXT keys will control the alarm switcher rather than the
loaded sequence.
15.3 Lock Commands
15.3.1 Locking a Monitor
Monitors that are locked can not be manually switched except by
the user who created the lock or by those users with a higher
priority. Note that if a user with a higher priority accesses a
locked monitor and switches to a different camera, the lock will
automatically be removed. Perform the following steps to 'lock' a
monitor:
1.
Press MONITOR.
2.
If the monitor to be locked is not the one currently
'connected' to the keyboard, enter the monitor number using
the numeric keypad (do NOT press ENTER).
3.
Press LOCK.
4.
Press ON. The locked monitor status display will show the
"ML" prompt to indicate that this monitor is locked.
EXAMPLE: MONITOR 2 LOCK ON
The above steps will lock monitor number 2.
15.3.2 Unlocking a Monitor
Locked monitors can be unlocked by the user who locked it or by
users with a higher priority. Perform the following steps to unlock
a monitor:
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