User`s guide

MULTITASKER
400-0226-004
9
INSTALLING YOUR MT105-110/111 6
Step 1. Turn off power to the MultiTasker system
and disconnect from AC power.
Step 2. Remove the slot covers (MT200-101) from
2 or 3 of the unused slots depending on
which model number is being installed.
Identify the slot number and note that it is
for RS-232 control.
Step 3. Slide the MT105-110/111 into the
MultiTasker enclosure in order to connect
to the bus. Make sure that the card fits
into place and then secure the card by
tightening the retainer screws located on
the top and bottom of the card.
Step 4. Restore power to the MultiTasker system.
Step 5. Connect coaxial cables from the video
sync sources to the input connectors of
the MT105-110/111.
Step 6. Connect the output connectors of the
MT105-110/111 to the display devices
through coaxial cables.
Step 7. The MT105-110/111 is now ready for
operation.
OPERATION 7
7.1 RS-232 CONTROL
The MT105-110/111 has many advanced
remote-control capabilities accessible through
standard RS-232 communication. Control may be
accomplished through a computer, control system,
or any device capable of RS-232 communication.
7.1.1 RS-232 INTERFACE
The control commands for the MT105-110/111
are in a simple ASCII character format.
1. Square brackets “[ ]” are part of the
command.
2. Use uppercase letters for all commands.
3. Spaces are not legal characters.
The cards in a MultiTasker are capable of
performing various functions, as well as
providing feedback to the user or control
system. Commands instruct a card to perform
specific actions or request information from the
card. Some commands do both simultaneously.
A command that instructs the card only to
perform an action will generate feedback of “[ ]”.
The open bracket immediately followed by a
closed bracket indicates the card received a
valid command. If the command requested
information from the card, the feedback
generated by the card is the acknowledgement
of having received a valid command. Invalid
commands generate feedback that includes
“ERR” plus an error code.
Example: [ERR001]
After processing a command, an “OK” or error
will be returned as feedback if “F” is included at
the end of a command string.
Commands ending in “S” will be saved into
memory. Commands not ending in “S” will still
be executed, but will not be restored when the
system is reset or powered off, then on.
7.2 DESCRIPTION OF COMMANDS
Each command consists of three parts:
Function, Card ID, and Unit ID.
[ Function , Card ID , Unit ID ]
Example: [VERC3U2]
VER = Function
C3 = Card ID or Group ID
U2 = Unit ID (optional for Unit ID 0)
For Function, see a detailed explanation under
each command description.