MULTITASKER

INSTALLING YOUR MT101-114/115/117 6

Step 1. Turn off power to

the MultiTasker

enclosure and disconnect from AC power.

WARNING! ALWAYS

DISCONNECT

THE AC POWER CORD BEFORE OPENING THE ENCLOSURE.

Step 2. The electronic components inside the enclosure and front panel are static-sensitive. Please take precautions to avoid electrostatic discharge (ESD).

Step 3. Remove the 6 screws on the front panel to access the cables inside the enclosure. Avoid handling the panel by the circuit boards; handle by the metal panel only.

Step 4. Follow the connector orientation illustrations shown in the Installation Instructions on page 5.

CAUTION! Avoid possible electrical damage by ensuring that all header pins are aligned properly before restoring power.

Step 5. After connecting the cables, fasten the panel to the enclosure with the 6 screws removed previously. Be careful not to pinch any cable between the panel and the enclosure.

Step 6. If a PC or control system is used to control the cards in the MultiTasker, connect the

9-pin D connector of the MT101-114/115/117to the control system’s RS-232 port.

MultiTasker

Computer/

Control System

 

GND (Ground)

Ground

 

 

RXD (Receive)

Transmit

 

 

TXD (Transmit)

Receive

 

 

Step 7. Turn on the power switch of the MT101-114/115/117MultiTasker. The unit is now operational.

OPERATION

7

The key programs and subroutines described in this section may be programmed on-the-fly or saved in a text file and downloaded to the MultiTasker using communication software such as MTSetup or AVSnap®. The sample program file shown in DIAGRAM 2 is a simple matrix control including volume control for an audio card. Use this example to see how keys and subroutines are typically programmed and organized.

7.1 TERMINOLOGY

The terms below are used to increase the legibility of the descriptions used in this section of the manual.

Cn

This term refers to a MultiTasker card

 

where the ID number is n. Typically, “n”

 

is the slot number of the card, but may

 

also be an assigned value. Example:

 

C1, C2, C3, etc.

Gk

This term refers to a group of cards

 

where “k” is the group number. Groups

 

are defined using the write group

 

command [WR]. The possible groups

 

are G1-G8.

Ui

This term refers to the ID number of a

 

MultiTasker enclosure. The value of “i”

 

may be a value from 0 to 20 where 0 is

 

the default value in single MultiTasker

 

systems.

string

A string is one or more text characters

 

that form a command, describe output

 

data, or refer to incoming feedback.

feedback

Feedback refers to text data that is

 

received from the MultiTasker or any of

 

the cards installed in the enclosure.

Sub

This term is an abbreviated form for

 

subroutine. A subroutine is a section of

 

memory used to store commands that

 

control the cards within the enclosure.

 

Example: SUB1, SUB2, etc.

400-0402-003

7

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Altinex MT101-114 Operation, Disconnect, AC Power Cord Before Opening the Enclosure, MultiTasker Computer Control System