Altinex MULTITASKER MT109-100 User manual

MT109
MT109MT109
MT109-
--
-100
100100
100/
//
/8
88
8-
--
-In, 1
In, 1In, 1
In, 1-
--
-Out Stereo Audio Switcher Card
Out Stereo Audio Switcher CardOut Stereo Audio Switcher Card
Out Stereo Audio Switcher Card User’s Guide
400-0095-007
1
Welcome!
We reatly appreciate your purchase of the MT109-100 8-In 1-Out Stereo
Audio Switcher Card. We are sure you will find it reliable and simple to use.
Superior performance for the ri ht price, backed by solid technical and
customer support is what ALTINEX has to offer.
We are committed to providin our customers with
Si nal Mana ement Solutions
®
to the most demandin audiovisual
installations at very competitive pricin and we welcome you to join the ranks
of our many satisfied customers throu hout the world.
1. Precautions and Safety Warnings
Please read this manual carefully before usin your MT109-100. Keep this
manual handy for future reference. These safety instructions are to ensure the
lon life of your MT109-100 and to prevent fire and shock hazards. Please
read them carefully and heed all warnin s.
1.1 General
•Qualified ALTINEX service personnel or their authorized representatives
must perform all service.
1.2 Installation Precautions
•The MT109-100 contains components sensitive to electrostatic dischar e
(ESD). Always use ESD safety precautions when touchin the card.
•To prevent fire or shock, do not expose this unit to water or moisture.
Do not place the MT109-100 in direct sunli ht, near heaters or
heat-radiatin appliances, or near any liquid. Exposure to direct sunli ht,
smoke, or steam can harm internal components.
•Handle the MT109-100 carefully. Droppin or jarrin can cause dama e.
•Do not pull any cables that are attached to the MT109-100.
•Insert the card carefully into the slots of the MultiTasker without
bendin any ed es.
•When removin a card, pull it halfway throu h to avoid dama e to
internal cables. If an expansion card is bein removed, please make sure
that the main card to which it is attached is pulled out simultaneously.
1.3 Cleaning
•Clean only the connector area with a dry cloth. Never use stron
deter ents or solvents such as alcohol or thinner. Do not use a wet cloth
or water to clean the card. Do not clean or touch any component or PCB.
1.4 FCC Notice
•This device complies with Part 15 of the FCC Rules. Operation is subject
to the followin two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference received,
includin interference that may cause undesired operation.
•This equipment has been tested and found to comply with the limits for
a Class A di ital device, pursuant to Part 15 of the FCC Rules. These
limits are desi ned to provide reasonable protection a ainst harmful
interference when the equipment is operated in a commercial
environment. This equipment enerates, uses, and can radiate radio
frequency ener y and, if not installed and used in accordance with the
instructions found herein, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is
likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
•Any chan es or modifications to the unit not expressly approved by
ALTINEX, Inc. could void the user’s authority to operate the equipment.
2. Installation Procedures
Step 1. Determine how the MT109-100 is oin to be confi ured. A standard MT109-100 is an 8-In, 1-Out switcher, but two MT109 100s may be confi ured
as a 15-In, 1-Out switcher. See Dia ram 4 on pa e 7 of the online manual for expansion card installation.
Step 2. Turn off power to the MultiTasker system.
Step 3. Slide the MT109-100 into an available slot in the MultiTasker in order to connect to the bus. Make sure that the MT109-100 fits into place and then
secure the card by ti htenin the retainer screws located on the top and bottom of the card. Identify the slot number and note that it is for RS-232
control.
Step 4. Restore power to the MultiTasker system.
Step 5. The LED on the card panel will turn red indicatin the card is operational.
Step 6. Connect the audio sources to the input connectors and the output to the receivin device.
Step 7. The MT109-100 is now operational.
3. Limited Warranty/Return policies
Please see the ALTINEX website at www.altinex.comfor details on warranty and return policies.

MT109
MT109MT109
MT109-
--
-100
100100
100 User’s Guide
400-0095-007
2
4. Technical Specifications
Specifications are subject to chan e. See www.altinex.com for up-to-date information.
Features/Description MT109-100
General
Inputs
Input Connectors 3.5 mm stereo jack (8)
Outputs
Local Output Connector 5-pin terminal block (1)
Compatibility Stereo or Mono Audio
Table 1. MT109-100 General
Mechanical MT109-100
Enclosure Slots Required One
Weight 1.0 lb (0.45 kg)
Connector Panel Black
T°Operating 10°C-40°C
T°Maximum 0 to 50°C
Humidity 90% non-condensing
MTBF (calc.) 55,000 hrs
Table 2. MT109-100 Mechanical
Electrical MT109-100
Input Signals
Max Level 0 dBu
Impedance 10 kohms
Audio Throughput
Gain 0 dB unbalanced,
6dB balanced
Frequency Response 20 Hz to 20 kHz +/- 0.5 dB
Output Signals
Level 1 Vp-p
Impedance Low – drives 600 ohms
Gain 0 dB
Power (from enclosure)
+6V 100 mA (0.6 W)
-6V 50 mA (0.3 W)
+13V 50 mA (0.6 W)
-13V 40 mA (0.5 W)
Total Power 2 W max.
Table 3. MT109-100 Electrical

MT109
MT109MT109
MT109-
--
-100
100100
100 User’s Guide
400-0095-007
3
5. About Your MT109-100
The MT109-100 is a Stereo Audio Switcher Card that allows the connection of 8 stereo audio sources to a sin le receivin device such as a cassette recorder,
mixer, and/or amplifier for sound reinforcement.
Inputs are selected throu h easy-to-use ASCII commands from a control system or computer connected to the RS-232 port of the MultiTasker enclosure. While
the MT109-100 can accept only unbalanced audio inputs, the output is a balanced output that can be wired for either balanced or unbalanced audio.
The MT109-100 is primarily desi ned to utilize the inputs and output offered on the connector panel. However, it also offers a special feature that enables the
MT109-100 to send or receive stereo audio si nals to or from another MT109-100.
This feature can be used in a variety of ways to expand the capabilities of the card. For example, two MT109-100 cards can be installed in the MultiTasker and
the output of one can be routed to an input of the other, creatin a 15-In, 1-Out switcher.
TOP RETAINER SCREW
8 AUDIO INPUTS
AUDIO OUTPUT
BOTTOM RETAINER SCREW

MT109
MT109MT109
MT109-
--
-100
100100
100 User’s Guide
400-0095-007
4
6. Application Diagrams
Diagram 1: Typical Setup
MT109-100

MT109
MT109MT109
MT109-
--
-100
100100
100 User’s Guide
400-0095-007
5
Diagram 2: Internal View

MT109
MT109MT109
MT109-
--
-100
100100
100 User’s Guide
400-0095-007
6
Diagram 3: Jumper Settings
INPUT 1
INPUT 2
INPUT 3
INPUT 4
INPUT 5
INPUT 6
INPUT 7
OUTPUT
INPUT 8
P23
L2EL1E L7 L8
R2E
R7
R1E
R8
P24
R2E
R8
R1E
R7
P24
P23
L7L1E L2E L8
Default jumper settings shown.
The MT109-100 has 8 external inputs, 1 internal input, and 1 output. The internal inputs come from an Expansion card usin a 10-pin IDC cable
connected between P12s of the Expansion and Master cards.
The internal input is confi ured as input 7 or input 8. Only one of two internal inputs is used at a time and it depends on how the jumpers on the
Expansion are set. In order to use one of the internal inputs, one of the external inputs (7 or 8) cannot be used.
Settin Jumpers:
1) As an Expansion card: set P13 as port 7 (L1E and R1E) or port 8 (L2E and R2E).
2) As a Master card: set jumpers on P23 and P24 as described below.
If the Expansion card's jumpers on P13 are set on L1E and R1E, the Master card must select internal input 7 on P23 (L1E) and P24 (R1E).
If the Expansion card's jumpers on P13 are set on L2E and R2E, the Master card must select internal input 8 on P23 (L2E) and P24 (R2E).
Note: The MT109-100 is an 8-In, 1-Out switcher. For a 15-In, 1-Out switcher, use two MT109-100 cards, one as a Master card and the other as an
Expansion card. (See pa e 8.)

MT109
MT109MT109
MT109-
--
-100
100100
100 User’s Guide
400-0095-007
7
Diagram 4: 15-In, 1-Out Switcher
INPUT 1
INPUT 2
INPUT 3
INPUT 4
INPUT 5
INPUT 6
INPUT 7
INPUT 8
INPUT 9
INPUT 10
INPUT 11
INPUT 12
INPUT 13
INPUT 14
INPUT 15
LOCAL OUTPUT
FOR
INPUTS 8-15
MAIN OUTPUT
INPUTS 1-15
FOR
Jumpers are set to Port 8.
NOT USED
MT109-100 as a Master Card:
7 External Inputs + 1 Internal Input
8 Internal Input
MT109-100 as an Expansion Card:
to Port 8.
NOTE: Port 8 of the Master
is being used as the internal input.
10-PIN IDC CABLE
Jumpers are set

MT109
MT109MT109
MT109-
--
-100
100100
100 User’s Guide
400-0095-007
8
7. Operation
7.1 RS-232 Control
The MT109-100 has many advanced remote-control capabilities accessible
throu h standard RS-232 communication usin a computer, control
system, or any device capable of RS-232 communication.
7.1.1 RS-232 Interface
The control commands for the MT109-100 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 le al characters.
The cards in a MultiTasker are capable of performin various
functions, as well as providin 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
enerate 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
enerated by the card is the acknowled ement of havin received a
valid command. Invalid commands enerate feedback that includes
"ERR" plus an error code.
Example 1: [ERR001] Error number
Example 2: [ERRC04] Card error C4
After processin a command, an "OK" or error is returned as feedback
if "F" is included at the end of a command strin .
Commands endin in "S" will be saved into memory. Commands not
endin in "S" are executed, but not restored at reset or powered-up.
7.1.2 Conventions Used in this Manual
Card IDs:
In this manual, cards are referenced by their card ID; typically
equivalent to the slot number:
C1, C2, C3, C4 ... C99
Group IDs:
Groups are referenced by their roup ID:
G1, G2, G3 ... G8
Unit IDs:
Units are referenced by their unit ID:
U0, U1, U2 ... U20
Examples for each command in the followin sections do not
include the unit ID. Commands sent to a MultiTasker without a
unit ID are executed by all MultiTaskers connected to the
RS-232 bus. It is only necessary to include the unit ID when
there is more than one MultiTasker connected to the bus and
the command is intended for cards in that MultiTasker only.
[VERC3]: Executed by all MultiTaskers on the RS-232 bus.
[VERC3U1]: Executed by MultiTasker unit ID U1 only.
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 description.
The card ID is a unique identifier. It is equal to the enclosure slot
number, or it may be an assi ned value. As the slot number, the value
can ran e from 1-4 up to 1-20 dependin on the enclosure. If the value
is assi ned, the ID may be a maximum of 99. Card ID 0 (C0) is used for
the controller and cannot be reassi ned.
The roup ID is a number representin a roup of cards defined with
the [WR] command. When usin the roup ID, all cards in the roup
perform the iven instruction.
Chan in the position of a card si nificantly affects the commands
recorded on software definitions or third-party control systems.
Example:
[VERC3]: For U0 or all MultiTaskers on the bus.
[VERC3Ui]: For IDs other than U0 or all MultiTaskers.
[VERC3]: Equivalent to [VERC3U0] for U0.
Command Organization
The RS-232 commands in this section are or anized into the followin
6cate ories:
Basic Commands
Feedback Control
Card Control
Volume Control
Card IDs
Groups
See the Summary of Commands (Section 7.3) for one-line descriptions of
each command.

MT109
MT109MT109
MT109-
--
-100
100100
100 User’s Guide
400-0095-007
9
Basic Commands
The basic commands are used to provide eneral information about the
card. These commands are most useful durin the initial sta es of settin
up and operatin the card.
1. [VER]
This command displays the software version and card type for the
card.
Command Format: [VERCn]
Cn = Card ID (n = # from 1 to max slots)
Example:
Send the command [VERC2] to check the version of the MT109-100
in slot 2. The system will return with feedback similar to the
followin :
[MT109-100 690-0179-006]
MT109-100 = card type
690-0179-006 = software version
2. [C]
This command displays the status of the card.
Command Format: [Cn]
Cn = card ID (n = # from 1 to max slots)
Example:
An MT109-100 card is in slot 4. Sendin [C4] will yield feedback
similar to the followin :
ON 1 C04
OUTVOL=32/32
INVOL1=32/32
INVOL2=32/32
INVOL3=32/32
INVOL4=32/32
INVOL5=32/32
INVOL6=32/32
INVOL7=32/32
INVOL8=32/32
If there is no card in slot 4, sendin the [C4] command will not return
any feedback.
3. [CnS]
This command saves the status of the card's current settin s to be
restored after the system is reset, or powered off and then on.
Command Format: [CnS]
Cn = card number
S = save confi uration
Example:
Save the card's current settin s by sendin the command [C4S]. The
feedback will display the status and a save messa e.
ON1C04
OUTVOL=32/32
INVOL1=16/32
INVOL2=16/32
INVOL3=16/32
INVOL4=16/32
INVOL5=16/32
INVOL6=16/32
INVOL7=16/32
INVOL8=16/32
[SAVED]
4. [CLR]
This command clears the card's settin s and returns them to the
factory defaults. Input 1 is selected, the output volume is set to 32/32,
and all the input levels are each set to 32/32.
Command Format: [CLRCn]
Cn = Card ID (n = # from 1 to max slots)
Example:
Send the command [CLRC4] to reset the MT109-100 in slot 4 to its
factory defaults.
5. [TEST]
This command performs a series of tests on the internal memory.
Command Format: [TESTCn]
Cn = Card ID (n = # from 1 to max slots)
Example:
Send [TESTC4] to test C4’s internal memory. Upon completion, the
system will display "MEMORY IS GOOD" if all tests pass; otherwise,
failures will be indicated.
6. [HELP]
This command displays information available for the MultiTasker
interface commands.
Command Format: [HELPCn]
Cn = card ID (n = # from 1 to max slots)
Example:
Display the RS-232 commands available for the MT109-100 card in
slot 4 by sendin [HELPC4]. The commands alon with a brief
description will be displayed in the Terminal Window.

MT109
MT109MT109
MT109-
--
-100
100100
100 User’s Guide
400-0095-007
10
Feedback Control
The next commands are a function of both the card and the front panel and
allow flexibility over when and how card information is displayed.
7. [FBD]
This command turns feedback delay on or off. It is necessary when
installin some newer cards in older systems. If the system does not
receive all of the feedback from the card, the card may be
communicatin too fast. This command will slow down the card's
communication rate.
Command Format: [FBDm]
m = Delay (0= no delay, 1= delay 100mS)
Example:
The command [HELPC4] is sent to the card in slot 4. Some of the Help
file is displayed on the screen, but most is missin . Send the command
[FBD1] to slow down the rate at which the card sends feedback to the
system.
8. [?]
This command displays eneral information about a MultiTasker and
its installed cards.
Command Format: [?Ui]
Ui = Unit ID (i = from 0 to 20)
Example:
A MultiTasker with unit ID 1 has a front panel with part number
MT101-101 and contains an MT103-122, MT103-123, and MT109-
100. Send the command [?U1] and receive the followin feedback:
[(MT101-101U1)(MT103-122C01)
(MT103-123C02)(MT109-100C03)]
MT101-101U1 = Panel number/unit ID
MT103-122C01 = MT103-122 is in slot 1
MT103-123C02 = MT103-123 is in slot 2
MT109-100C03 = MT109-100 is in slot 3
9. [?C]
This command displays eneral information about a card and its status.
Command Format: [?Cn]
Cn = Card ID (n = # from 1 to max slots)
Example:
The MT109-100 in slot 4 has Input 1 selected. Send the command
[?C4] to receive feedback status similar to the followin .
Example:
[(MT109-100C04)(VR690-0179-006C04)
(IN1C04)(VO32C04)(VI3232323232323232C04)(VM0C04)]
All status feedback is enclosed in brackets, "[ ]". Each data field within
the status is enclosed in parentheses. The first two characters identify
the status type. The last three characters are the card’s ID.
MT109-100 = Card model number
VR690-0179-006 = Firmware version
IN1 = Input select (1-8)
VO32 = Volume level (1-32)
VI3232...32 = Input ain settin s
VM0 = Mute (0= off, 1= on)
The input ain line is read left to ri ht representin Inputs 1-8 and the
ain level to which each is set. The first two di its show the ain level
for Input 1. The third and forth di its are for Input 2 and so on.
10. [STA1]
This command enables automatic feedback from the front panel. The
command affects any card with auto-feedback capability, not just the
MT109-100. The default at power on or reset is STA0, off. For more
details, see the [?Cn] command definition.
Command Format: [STA1]
Feedback Prefix Definitions:
MT Card model number
VR Firmware version
IN Input selection
VO Output Volume
VI Input ain settin s
VM Mute on/off
Example:
Command = [VLOA16C4]
Feedback = (VO16C04)
VO = Output volume
16 = Settin (16 of 32)
C04 = Card ID/slot number
11. [STA0]
This command disables automatic feedback from the card and front
panel. The command affects any card with auto-feedback capability,
not just the MT109-100 card.
..
. The default at power on or reset is
STA0, Off.
Command Format: [STA0]
12. […F] – Feedback
After processin a command, an "OK" or "[ERR001]" will be returned
as feedback if "F" is included at the end of a command strin .

MT109
MT109MT109
MT109-
--
-100
100100
100 User’s Guide
400-0095-007
11
Card Control
Card control commands allow the main functions of the card to be
executed over the RS-232 bus, or from the front panel’s pro rammable
keys.
13. […S] – Save
This command will save the confi uration command bein sent in
memory. When sendin the command [VLI1A16C4S], after reset or
power up, Input 1 on C4 will be restored with an input ain level of
16.
14. [ONm]
This command is used to select the input to be active on the output
connector.
Command Format: [ONmCn]
m = Input number (m = # from 1 to 8)
Cn = Card ID (n = # from 1 to max slots)
Example:
There is an MT109-100 card in slot 4. Send the command [ON3C4] to
select Input 3 as the active input. If the output is disabled (muted), it
will remain disabled.
15. [ON]
This command is the same as the MUT0 command.
16. [OFF]
This command is the same as the MUT1 command.
17. [MUT0]
This command turns on the output volume without chan in the
input port selected and without chan in any volume settin s.
Command Format: [MUT0Cn]
Cn = Card ID (n = # from 1 to max slots)
Example:
Send the command [MUT0C4] to turn on the output volume for the
card in slot 4.
18. [MUT1]
This command turns off the output volume without chan in the
input port selected and without chan in any volume settin s.
Command Format: [MUT1C n ]
Cn = Card ID (n = # from 1 to max slots)
Example:
Send the command [MUT1C4] to turn off the output volume for the
card in slot 4.
19. […P] – Path
This command sets the path for the output, but is not active until the
switch command, [SW], is executed. Commands endin in "P" are not
executed immediately. The path for outputs on one or more cards can
be preloaded. See the [SW] command for details.
20. [SW] – Switch
The switch command immediately connects inputs and/or outputs,
which were previously set with the path command on this card and all
other cards in the system.
Example:
There is an MT109-100 in slot 2 and another MT109-100 in slot 3.
Switch C2 to Input 1 at the same time a switchin C3 to Input 4 by
sendin the followin commands:
[ON1C2P] [ON4C3P] [SW]
21. [ + ]
See the [SEL] and [SELm] commands.
22. [ - ]
See the [SEL] and [SELm] commands.
23. [SEL] and [SELm]
These commands allow the output volume and input levels to be
adjusted incrementally.
Output Volume
Command Format: [SELCn]
Cn = Card ID (n = # from 1 to max slots)
Input Level
Command Format: [SELmCn]
m = Input (m # from 0 to 8)
Cn = Card ID (n = # from 1 to max slots)
Increment/Decrement
Command Format: [+] / [-]
[+] = Increment level by one
[-] = Decrement level by one
Example:
An MT109-100 is in slot 4. Adjust the ain on Input 2 from a level of
10 to 15.
1. [SEL2C4]
The current ain level is 10.
2. [ -
--
- ] [ -
--
- ] [ -
--
- ]
The level is now 7 and is too low.
3. [ +
++
+ ] [ +
++
+ ] [ +
++
+ ] [ +
++
+ ] [ +
++
+ ] [ +
++
+ ] [ +
++
+ ] [ +
++
+ ]
The level is now 15 and no further adjustments are required.

MT109
MT109MT109
MT109-
--
-100
100100
100 User’s Guide
400-0095-007
12
24. [ +O ]
This command increases the output volume level by 1 up to the
maximum level of 32. If the command is sent after a level of 32 has
been reached, it will have no effect on the output.
Command Format: [+OCn]
Cn = Card ID (n = # from 1 to max slots)
Example:
Increase the output volume of C4 (slot 4) from 31 to 32 by sendin the
command [+OC4].
25. [ -O ]
This command is the same as [+O] except that it decreases the output
volume level by 1 down to a minimum level of 1.
26. [ +I ]
This command increases an input level by 1 up to the maximum of 32.
Attempts to increase the level after reachin 32 have no effect.
Command Format: [+ImCn]
m = Input No. (m - # from 1 to 8)
Cn = Card ID (n = # from 1 to max slots)
Example:
Increase the input level of Input 2 on C4 from 31 to 32 by sendin the
command [+I2C4].
27. [ -I ]
This command is the same as [+Im] except that it decreases an input
level by 1 down to the minimum level of 1.
28. [VLO]
This command sets the absolute output volume to a specific value.
Command Format: [VLOAvCn]
v = Volume Level (# from 01 to 32)
Cn = Card ID (n = # from 1 to max slots)
Example 1:
Set the output volume level to a level of 16 usin the command
[VLOA16C4].
29. [VLI]
This command sets an input level to a specific ain value.
Command Format: [VLImAvCn]
m = Input (m = # from 1-8)
v = Gain level (v = # from 01 to 32)
Cn = Card ID
Example 1:
Set the input ain level for Input 4 to a value of 24 usin the command
[VLI4A24C4].
Volume Ramping Commands
The followin commands are used to control the volume of the
MT109-100. They may be used with computer control, or with the
{SETVK} command usin keys on the front panel. The followin code
sample sets front panel keys 8 and 10 to Ramp Up and Ramp Down
respectively. See your Front Panel User’s Guide for more details.
When defined as a volume control key, the key will respond to two
conditions: press and release. Below is an example of how to use the
rampin feature. Subroutine 8 starts rampin up when key 8 is pressed and
subroutine 10 starts rampin down when key 10 is pressed. Subroutine 108
stops rampin when either key is released.
{WRS8=RUPC4} //Ramp Up
{WRK8=8,108,0,0,0} //Press= start, release= stop
{WRS10=RDNC4} //Ramp Down
{WRK10=10,108,0,0,0} //Press= start, release= stop
{WRS108=RSTC4} //Stop Rampin
{SETVK8} //Set key 8 as volume key
{WRLK8=VOL_UP} //Define Key 8 Label
{SETVK10} //Set key 8 as volume key
{WRLK10=VOL_DN} //Define Key 8 Label
[RAMP=10C4] //Set the ramp rate.
30. [RUP]
This command ramps the output volume to its maximum level at the
rate defined usin the [RAMP] command.
Command Format: [RUPCn]
Cn = Card ID (n = # from 1 to max slots)
Example:
Ramp the output volume from a startin level of 10 to the maximum
level of 32 for the card in slot 4. Send the command [RUPC4] and the
system will respond with the followin feedback:
[11][12][13][14]…[32]
31. [RUP=]
This command ramps the output volume to a user defined level at a
rate defined usin the [RAMP] command.
Command Format: [RUP=xxCn]
xx = Stop Level (xx = # from 01-32)
Cn = Card ID (n = # from 1 to max slots)
Example:
Ramp the output volume from a startin level of 1 to a level of 20 for
the card in slot 4. Send the command [RUP=20C4] and the system will
respond with the followin feedback:
[02][03][04]…[20]

MT109
MT109MT109
MT109-
--
-100
100100
100 User’s Guide
400-0095-007
13
32. [RDN]
This command ramps the output volume down to a level of 1 at a rate
defined usin the [RAMP] command.
Command Format: [RDNCn]
Cn = Card ID (n = # from 1 to max slots)
Example:
Ramp the output volume from a startin level of 32 down to 1 for the
card in slot 4. Send the command [RDNC4] and the system will
respond with the followin feedback:
[31][30][29]…[01]
33. [RDN=]
This command ramps the output volume down to a user defined level
at a rate defined usin the [RAMP] command.
Command Format: [RDN=xxCn]
xx = Stop Level (xx = # from 01-32)
Cn = Card ID (n = # from 1 to max slots)
Example:
Ramp the output volume from a startin level of 32 down to 16 for the
card in slot 4. Send the command [RDN=16C4] and the system will
respond with the followin feedback:
[31][30][29]…[16]
34. [RAMP]
This command displays the rampin time for 32 steps. The time
between each step is equal to the time in seconds divided by 32.
Command Format: [RAMPCn]
Cn = Card ID (n = # from 1 to max slots)
Example:
Display the ramp-rate settin for the card in slot 4 by sendin the
command [RAMPC4]. The system will respond with feedback similar
to the followin :
RAMPTIME = 6 SECONDS
35. [RAMP=]
This command sets the ramp-rate for 32 steps. The settin s ran e from
4 to 18 seconds, in two-second intervals.
Command Format: [RAMP=xCn]
x = Rate in Seconds
4 = 0.13 seconds/step
6 = 0.19 seconds /step
8 = 0.25 seconds /step
10 = 0.31 seconds /step
12 = 0.38 seconds /step
14 = 0.44 seconds /step
16 = 0.50 seconds /step
18 = 0.56 seconds /step
Cn = Card ID (n = # from 1 to max slots)
Example:
There is an MT109-100 in slot 4. Send the command [RAMP=16C4] to
set the ramp rate to 16 seconds. After this is set, any rampin will
occur at a rate of 32 steps in 16 seconds, or 0.50 seconds per step.
Confirm the settin by sendin the command [RAMPC4] and
receivin the feedback:
RAMPTIME = 16 SECONDS
36. [RST]
This command stops rampin and maintains the last volume settin .
Command Format: [RSTCn]
Cn = Card ID (n = # from 1 to max slots)
Example:
The card in slot 4 is rampin up from a volume level of 1 to 32. Send
the command [RSTC4] and the card will stop rampin the output
volume. The last displayed volume settin will remain the current
volume level.

MT109
MT109MT109
MT109-
--
-100
100100
100 User’s Guide
400-0095-007
14
ID Commands
The default card ID is the same as the card slot number. The next several
commands allow the user to chan e the card ID to a value other than the
slot number. Once the ID is chan ed, movin the card to another slot will
not chan e the card ID. If a card in slot 4 is set to ID 1, then moved to slot
10, its ID will remain 1. The [RSI] command forces each installed card to
take its slot number as its ID number, re ardless of the slot in which it is
installed.
Some cards require more than one slot in the MultiTasker system. As an
example, some matrix switcher cards require 4 slots. If 5 of these cards are
installed, they would be numbered C4, C8, C12, C16, and C20. Chan in
the ID allows the user to define the cards as C1, C2, C3, C4, and C5.
Another use for chan in the card ID is to be able to use multiple systems
without havin to set each unit to a different unit ID. All systems may be
left as unit ID 0 for ease of pro rammin . The cards in the first unit may be
numbered 1-10 and in the second unit 11-20.
37. [RSI]
This command resets the card IDs in the system. After sendin this
command, each card ID in the system will match the slot number of
the card. If the card is moved to another slot, its ID number will be the
new slot number.
Command Format: [RSI]
Example:
Send the command [RSI] to the system with
Unit ID 0. The card in slot 1 will have ID 1, the card in slot 2 will have
ID 2, and so on. If the card in slot 1 is then moved to slot 4, the card
ID will then be 4.
38. [SIDn]
This command sets all the cards installed in the MultiTasker system to
the same card ID. After sendin this command, all cards will be
addressed with the same ID. Use caution when sendin this command
to a system with multiple board types.
Command Format: [SIDn]
n = Card ID (n = # from 1 to 99)
Example:
Send the command [SID1] to the system. All the cards in the system
now have ID 1. Any commands that are sent to card ID 1 will be
received and executed by each card.
39. [SIDnCi]
This command sets the card ID of a sin le card to a number from 1 to
99.
Command Format: [SIDnCi]
n = Card ID (n = # from 1 to 99)
Ci = Slot Number (i = # from 1 to max slots)
Example:
Send the command [SID50C10] to set the ID of the card in slot 10 to
an ID of 50.
40. [SID+]
This command sets the card ID of all the cards in a system to their slot
number plus the offset value.
Command Format: [SID+n]
n = Offset amount (n = # from 0 to 99)
The maximum card ID is 99, so subtract the hi hest slot number from
99 to find the maximum offset. For example, in an 8-slot enclosure,
the maximum offset would be 91. The slot number (8) plus the offset
(91) equals 99.
Example:
There are two 20-slot enclosures to be connected to ether durin
normal operation. The first unit will use the default IDs where the
card ID is equal to the slot number. The second unit will have the
same unit ID, but each card ID will be offset by 20.
Connect the computer to the second unit only and send the command
[SID+20] to set the ID of all the cards in the second enclosure to their
slot number plus 20. Reconnect both units to the computer.
The cards in the first unit will be referenced as card IDs 1-20 and the
cards in the second unit will be referenced by card IDs 21-40.
41. [RSN]
This command displays the slot number of a card with a specified ID
number. If more than one card has the same ID, each slot number will
be displayed.
Command Format: [RSNCi]
Ci = Card ID (i = # from 1 to 99)
Example:
The card in slot 4 takes up four slots in the enclosure. Its ID was set to
1 since it is the first card installed in the system, readin from left to
ri ht. Send the command [RSNC1] to find the slot number of this card.
The system responds with the followin feedback:
[4]

MT109
MT109MT109
MT109-
--
-100
100100
100 User’s Guide
400-0095-007
15
Group Commands
Group commands allow several cards with the same functions to be
controlled simultaneously with a sin le command. Up to 8 roups (G1-G8)
may be defined. These commands apply to all cards, not only the
MT109-100.
42. [WR]
This command adds cards to a roup. In MultiTasker systems with
audio and video cards, the roups are typically as follows:
Group 1 = Video Cards
Group 2 = Audio Cards
Group 3 = Video and Audio Cards
Command Format: [WRCn 1 Cn 2 …Gk]
Cn = Card ID (n = slot # from 1 to max slots)
Gk = Group ID (k = # from 1-8)
Example:
Add C2, C4, and C6 to G5 by sendin the command [WRC2C4C6G5].
After executin this command, G5 will consist of C2, C4, and C6.
Next, add C8 to G5 by sendin [WRC8G5]. C8 is added to G5, and G5
is not overwritten. View the contents of G5 by sendin [RDG5] and
receivin the followin feedback:
[G5=C2C4C6C8]
43. [RMC]
This command removes one or more cards from a roup.
Command Format: [RMCn 1 Cn 2 …Gk]
Cn = Card ID (n= # from 1 to max slots)
Gk = Group ID (k = # from 1-8)
Example:
G5 consists of C2, C4, C6, and C8. Remove C6 and C8 by sendin
[RMC6C8G5]. View the contents of G5 by sendin [RDG5] and
receivin the followin feedback:
[G5=C2C4]
44. [RMG]
This command deletes one or all roups.
Command Format: [RMGk]
Gk = Group ID (k = # from 1-8, * for all)
Example:
Remove all cards from G5 by sendin [RMG5]. The system will return
the followin feedback:
[G5=0]
Example 2:
Remove all cards from all roups, effectively deletin all roups, by
sendin [RMG*]. The system will return the followin feedback:
G1-G8: EMPTY
45. [RD]
This command reads and then displays the members in a roup.
Command Format: [RDGk]
Gk = Group ID (k = # from 1-8)
Example:
C2, C4, and C6 make up G5. Read the member data for G5 by sendin
the command [RDG5]. The system will return feedback as follows:
[G5=C2C4C6]
The feedback shows G5 and then the cards that make up G5. In this
case, G5 includes C2, C4, and C6.

MT109
MT109MT109
MT109-
--
-100
100100
100 User’s Guide
400-0095-007
16
7.3 Summary of Commands
Basic Commands
Basic CommandsBasic Commands
Basic Commands
1)
1)1)
1) [VER]
[VER][VER]
[VER] Display firmware version
Display firmware versionDisplay firmware version
Display firmware version
2)
2)2)
2) [C]
[C][C]
[C] Display card status
Display card statusDisplay card status
Display card status
3)
3)3)
3) [CnS]
[CnS][CnS]
[CnS] Save card settin s
Save card settin sSave card settin s
Save card settin s
4)
4)4)
4) [CLR]
[CLR][CLR]
[CLR] Reset card to defaults
Reset card to defaultsReset card to defaults
Reset card to defaults
5)
5)5)
5) [TEST]
[TEST][TEST]
[TEST] Test internal memory ICs
Test internal memory ICsTest internal memory ICs
Test internal memory ICs
6)
6)6)
6) [HELP]
[HELP][HELP]
[HELP] Display ava
Display avaDisplay ava
Display available commands
ilable commandsilable commands
ilable commands
Feedback Commands
Feedback CommandsFeedback Commands
Feedback Commands
7)
7)7)
7) [FBD]
[FBD][FBD]
[FBD] Feedback delay on/off
Feedback delay on/offFeedback delay on/off
Feedback delay on/off
8)
8)8)
8) [?]
[?][?]
[?] Display system cards
Display system cardsDisplay system cards
Display system cards
9)
9)9)
9) [?C]
[?C][?C]
[?C] Display card information
Display card informationDisplay card information
Display card information
10)
10)10)
10) [STA1]
[STA1][STA1]
[STA1] Auto
AutoAuto
Auto-
--
-feedback on
feedback onfeedback on
feedback on
11)
11)11)
11) [STA0]
[STA0][STA0]
[STA0] Auto
AutoAuto
Auto-
--
-feedback off
feedback offfeedback off
feedback off
12)
12)12)
12) [...F]
[...F][...F]
[...F] Display OK after command
Display OK after commandDisplay OK after command
Display OK after command
Card Control Commands
Card Control CommandsCard Control Commands
Card Control Commands
13)
13)13)
13) […S]
[…S][…S]
[…S] Save c
Save cSave c
Save command confi uration
ommand confi urationommand confi uration
ommand confi uration
14)
14)14)
14) [ONm]
[ONm][ONm]
[ONm] Select the active input
Select the active inputSelect the active input
Select the active input
15)
15)15)
15) [ON]
[ON][ON]
[ON] Enable output
Enable outputEnable output
Enable output
16)
16)16)
16) [OFF]
[OFF][OFF]
[OFF] Disable output
Disable outputDisable output
Disable output
17)
17)17)
17) [MUT0]
[MUT0][MUT0]
[MUT0] Enable output
Enable outputEnable output
Enable output
18)
18)18)
18) [MUT1]
[MUT1][MUT1]
[MUT1] Disable output
Disable outputDisable output
Disable output
19)
19)19)
19) […P]
[…P][…P]
[…P] Set the path, preload for [SW]
Set the path, preload for [SW] Set the path, preload for [SW]
Set the path, preload for [SW]
20)
20)20)
20) [SW]
[SW][SW]
[SW] Switch preloaded output buffer
Switch preloaded output bufferSwitch preloaded output buffer
Switch preloaded output buffer
21)
21)21)
21) [ + ]
[ + ][ + ]
[ + ] Increment v
Increment vIncrement v
Increment value by one
alue by onealue by one
alue by one
22)
22)22)
22) [
[ [
[ -
--
- ]
] ]
] Decrement value by one
Decrement value by oneDecrement value by one
Decrement value by one
23)
23)23)
23) [SEL]
[SEL][SEL]
[SEL] Select output volume to adjust
Select output volume to adjustSelect output volume to adjust
Select output volume to adjust
[
[[
[SELm]
SELm]SELm]
SELm] Select
Select Select
Select input level
input levelinput level
input level to adjust
to adjust to adjust
to adjust
24)
24)24)
24) [ +O ]
[ +O ][ +O ]
[ +O ] Increment output volume
Increment output volumeIncrement output volume
Increment output volume
25)
25)25)
25) [
[ [
[ -
--
-O ]
O ]O ]
O ] Decrement output volume
Decrement output volumeDecrement output volume
Decrement output volume
26)
26)26)
26) [ +I ]
[ +I ][ +I ]
[ +I ] Increment input ain
Increment input ainIncrement input ain
Increment input ain
27)
27)27)
27) [
[ [
[ -
--
-I ]
I ]I ]
I ] Decrement input ain
Decrement input ainDecrement input ain
Decrement input ain
28)
28)28)
28) [VLO]
[VLO][VLO]
[VLO] Set output volume level
Set output volume levelSet output volume level
Set output volume level
29)
29)29)
29) [VLI]
[VLI][VLI]
[VLI] Set an input level
Set an input levelSet an input level
Set an input level
Volume Rampin Commands
Volume Rampin CommandsVolume Rampin Commands
Volume Rampin Commands
30)
30)30)
30) [RUP]
[RUP][RUP]
[RUP] Ramp volume UP to 32
Ramp volume UP to 32Ramp volume UP to 32
Ramp volume UP to 32
31)
31)31)
31) [RUP=]
[RUP=][RUP=]
[RUP=] Ramp volume UP to a value
Ramp volume UP to a valueRamp volume UP to a value
Ramp volume UP to a value
32)
32)32)
32) [RDN]
[RDN][RDN]
[RDN] Ramp volume DOWN to 1
Ramp volume DOWN to 1Ramp volume DOWN to 1
Ramp volume DOWN to 1
33)
33)33)
33) [RDN=]
[RDN=][RDN=]
[RDN=] Ramp volume DOWN to a value
Ramp volume DOWN to a valueRamp volume DOWN to a value
Ramp volume DOWN to a value
34)
34)34)
34) [RAMP]
[RAMP][RAMP]
[RAMP] Return ramp rate
Return ramp rateReturn ramp rate
Return ramp rate
35)
35)35)
35) [RAMP=] Set ramp rate
[RAMP=] Set ramp rate[RAMP=] Set ramp rate
[RAMP=] Set ramp rate
36)
36)36)
36) [RST]
[RST][RST]
[RST] Stop rampin
Stop rampinStop rampin
Stop rampin
ID Commands
ID CommandsID Commands
ID Commands
37)
37)37)
37) [RSI]
[RSI][RSI]
[RSI] Reset Card IDs to defaults
Reset Card IDs to defaultsReset Card IDs to defaults
Reset Card IDs to defaults
38)
38)38)
38) [SIDn]
[SIDn][SIDn]
[SIDn] Set all Card IDs
Set all Card IDsSet all Card IDs
Set all Card IDs
39)
39)39)
39) [SIDnCi]
[SIDnCi][SIDnCi]
[SIDnCi] Set one Card ID
Set one Card IDSet one Card ID
Set one Card ID
40)
40)40)
40) [SID+]
[SID+][SID+]
[SID+] Set all Card IDs to an offset
Set all Card IDs to an offsetSet all Card IDs to an offset
Set all Card IDs to an offset
41)
41)41)
41) [RSN]
[RSN][RSN]
[RSN] Display card slot number
Display card slot numberDisplay card slot number
Display card slot number
Group Commands
Group CommandsGroup Commands
Group Commands
42)
42)42)
42) [WR]
[WR][WR]
[WR] Add card(s) to a roup
Add card(s) to a roupAdd card(s) to a roup
Add card(s) to a roup
43)
43)43)
43) [RMC]
[RMC][RMC]
[RMC] Remove card(s) from roup
Remove card(s) from roupRemove card(s) from roup
Remove card(s) from roup
44)
44)44)
44) [RMG]
[RMG][RMG]
[RMG] Delete roup
Delete roupDelete roup
Delete roup
45)
45)45)
45) [RD]
[RD][RD]
[RD] Display roup members
Display roup membersDisplay roup members
Display roup members

MT109
MT109MT109
MT109-
--
-100
100100
100 User’s Guide
400-0095-007
17
7.4 Menu Mode
Menu Mode commands allow virtually the same functionality as
pro rammin commands. Unlike the pro rammin commands in the
previous sections, menu commands prompt the user to select from a list of
available options and the system responds based upon user selections.
7.4.1 Menu Command Definitions
Refer to section 7.2 for details on card functions and examples.
Menu Command
Control
Select n/a
Save [CnS]
Clear [CLR]
Switch [ON]
Volume [VLO], [RUP], [RDN], [RST]
Mute [MUT0], [MUT1], [OFF], [ON]
Setup
Group [WR], [RM]
Input Volume [VLI]
Ramp Time [RAMP]
Status [VER], [C]
Help [HELP]
7.4.2 Using Menu Mode
Do NOT press any keys except those relatin to the current menu. If
you press the ENTER key after enterin a letter or di it, the ori inal
list of systems will be displayed.
1. In order to enter Menu Mode, the system needs to be connected to
a computer runnin RS-232 control software.
2. In the Terminal Window, press the ENTER key on the keyboard.
3. The system checks all MultiTaskers on the RS-232 bus and displays
a list of available systems.
Example: 1: U1
2: U2
3: U3
4. Enter the ID number of the desired system. In the example above,
enter a "1" for the MultiTasker with unit ID 1.
5. The system then interro ates all the cards available in its enclosure
and displays a list of available cards.
Example: 01: MT103-122
02: MT103-123
04: MT109-100
6. Enter the 2-di it ID and a menu for the card will be displayed. In
the example above, enter "04" for the MT109-100.
7. The system prompts for selections specific to the selected card.
8. Read each menu carefully, and continue selections as prompted.
NOTE: Menus for data entry have two prompts: "Key=" and "ESC"
(escape). Enter the selection at the "Key=" prompt, or press
escape to return to the previous menu.
7.4.3 Menu Types
1. Main Menu
The first menu displayed after selectin the card is the Main
Menu. This menu provides access to the key functions related to
the card. Press the key representin the menu item for access
and a sub-menu will appear.
2. Sub-Menus
Each menu item will display either a sub-menu, or a list of
options. Press the key correspondin to the desired choice.
7.4.4 MT109-100 Menus
Followin are the menus available to the MT109-100. The first menu
is the Main Menu only. The second listin is an expanded view of the
Main Menu.
Subsequent menus can contain values that indicate the current settin
or value of a parameter. The value is usually in parentheses, or
otherwise indicated at the top of a sub-menu.
Caution: Pay special attention to the top of the Control menu. After
selectin the Control menu, This Card or a roup will be identified at
the top of the sub-menu. Since roup functions may be modified from
this menu, make sure the desired card or roup is selected.
MT109-100 Main Menu
PRESS KEY TO SELECT
1: CONTROL
2: SETUP
3: STATUS
4: HELP
ESC: GO BACK
MT109-100 Menus
1: CONTROL
SELECT CARD/GROUP
SAVE
CLEAR
SWITCH
VOLUME
MUTE
2: SETUP
SET GROUP
SET INPUT VOLUME
SET RAMP TIME
3: STATUS
4: HELP

MT109
MT109MT109
MT109-
--
-100
100100
100 User’s Guide
400-0095-007
18
7.4.5 Menu Mode Examples
All Menu Mode examples assume an MT109-100 is installed in slot 4
of unit ID 1.
Note: The communication software you use may echo each
character as it is typed when enterin numeric values (not
selectin menu items). For example, enterin a value of 03
may appear as 0033 on the screen.
1. Select An Input
Follow the keystrokes below to select Input 3 as the source input.
Enter List available systems
1 Select unit ID 1
04 Select MT109-100 in slot 4
1 Select Control Menu
1 Select Card/Group Select
0 Select This Card (card #1)
The Control menu will read This Card at the top.
ESC Return to Control menu
4 Select Switch sub-menu
3 Select Input 3
ESC Return to Control Menu
ESC Return to the Main Menu
2. Set Input 3 Gain Level
Start from the Main Menu and set Input 3 ain level to 16. Follow the
keystrokes below.
2 Select Setup Menu
2 Select Set Input Volume
3 Select Input 3 Volume
16 Enter 16
Note: The system may echo the 1 and the 6 entries
dependin on the software settin s.
ESC Return to Setup
ESC Return to the Main Menu
3. Set Output Volume
Start from the Main Menu and set the output volume level to 16 usin
the keystrokes below.
1 Select Control Menu
5 Select Volume
1 or 2 Use "1" to increase and "2" to decrease until the desired
level is obtained.
ESC Return to Control menu
ESC Return to the Main Menu
4. Set Ramp Time
Start from the Main Menu and set the ramp time to 10 seconds usin
the keystrokes below.
2 Select Setup Menu
3 Select Set Ramp Time
4 Select Ramp Time = 10 seconds
ESC Return to Setup menu
ESC Return to the Main Menu
5. Display Card Status
Start from the Main Menu and follow the keystrokes below.
3 Display card status
Note: The status will be displayed, followed by the Main
Menu bein redisplayed.

MT109
MT109MT109
MT109-
--
-100
100100
100 User’s Guide
400-0095-007
19
8. Troubleshooting Guide
We have carefully tested and have found no problems in the supplied
MT109-100; however, we would like to offer su estions for the followin :
8.1 LED is Not Lit
Cause 1: The card is not plu ed in.
Solution: Plu the card in all the way. If the LED turns on, the problem
is solved. If the LED is still not on, see Cause 2.
Cause 2: The card is not plu ed in all the way.
Solution: Push the card in all the way. If the LED is still not on, see
Cause 3.
Cause 3: The card ca e slot has a problem.
Solution 1: Test the card in other slots of the card ca e. If the slot was
dama ed, the card may work in other slots. If other slots work
and the LED turns on, the problem is the card ca e slot. The
card ca e may require service. Please, call ALTINEX at
[phone]. If the other slots do not work and the LED is
still not lit, see Solution 2.
Solution 2: Take any other known ood card with an LED and verify that
the slot used is ood by seein if the other card’s LED li hts in
that slot. If it li hts, then the ori inal card may be the source
of the problem. Please, call ALTINEX at [phone].
8.2 No Sound
Cause 1: The source has a problem.
Solution: Check the source and make sure that it is workin at an
appropriate volume level and all source connections are
correct. If the source is workin and there is still no sound, see
Cause 2.
Cause 2: The proper card input may not be selected.
Solution: Select the card input that is used by RS-232 accessible
commands in section 7. If no sound is present, see Cause 3.
Cause 3: Cable connections to the destination are incorrect.
Solution: Make sure that cables are connected properly. Also, make sure
that the continuity and wirin are ood. If there is still no
sound present, see Cause 4.
Cause 4: The destination amplifier has a problem.
Solution 1: Make sure that the destination amplifier is powered. If there is
still no sound, see Solution 2.
Solution 2: Set the volume of the destination amplifier to a reasonable
level. If there is still no sound, call ALTINEX at
[phone].
8.3 Sound Distortion
Cause 1: The source level is above 1 Vp-p.
Solution: Make sure that the source level is below 1 Vp-p. If the sound
is still distorted, see Cause 2.
Cause 2: The destination amplifier provides excessive amplification.
Solution: Make sure that the source si nal level is hi h enou h so that
the destination amplifier does not have to provide excessive
amplification and thereby distort the si nal. If there is still
sound distortion, call ALTINEX at [phone].
8.4 Sound Level is Low
Cause 1: Input volume is low.
Solution 1: Turn up the source volume. If the sound level is still low, see
Solution 2.
Solution 2: Turn up the destination amplifier volume. If the sound level is
still low, see Cause 2.
Cause 2: Poor si nal transmission.
Solution: Check the cables for continuity and make sure that
connections are wired properly to verify that there is ood
si nal transmission.
Note: Test the system by removin the MT109-100 card from between
the source and the destination amplifier. If the problem persists,
call ALTINEX at [phone].