Meteor DMX Relay User Manual

Page 1 of 3

Universal DMX Relay

Specifications:

Voltage: 120vac 60Hz (230vac 50Hz available)
Power Input: 40mA plus load
Power Cord: 6 ft. 15amp with NEMA type 5-15P plug
Power Out:

Terminal Block: (6 position)

- low voltage 3A relay contact 1a

- low voltage 3A relay contact 1b

- +10vdc regulated 30mA

- +5vdc regulated 250mA

- ground

- 4.7k ohm pull up/down resistor

Enclosure: 5.5"(L) x 4.6"(W) x 2.3"(H) durable black CRS
Weight: 2 lb.

DMX Address Setting:

Set the DMX address that the Universal DMX relay will respond to. Refer to the following table for
correct dip switch settings.

DMX

Address 1 2 3 4 5 6 7 8 9

Weighted

Value

DMX address = Add the weighted value of all the dip switches that are turned ON + 1

MLSC Inc (Meteor Light and Sound Co.)
Mailing address: P.O. BOX 578; Shipping: 8000 Madison Pike, Madison, AL 35758
Phone: [phone] Sales: [phone] Fax: [phone]
[e-mail] www.meteor-usa.com www.meteor-global.com

Input line voltage switched to NEMA type 5-15R receptacle,

maximum 15A inductive or non-inductive load

Universal DMX Relay Dip Switch

001 - - - - - - - - -

002

003 -

004

005 - -

006

007 -

008

009 - - -

010

011 -

012

“ “ “ “ “ “ “ “ “ “ “

256

“ “ “ “ “ “ “ “ “ “ “

512

ON

ON ON

ON

ON ON ON

ON

ON ON

ON ON ON ON ON ON ON ON

ON ON ON ON ON ON ON ON ON

1 2 4 8 16 32 64 128 256

- - - - - - - -

ON

-

ON ON

- -

ON

- - - - - - -

- - - - - - -

ON

ON

-

-

- - - - - -

- - - - - -

- - - - - -

- - - - - -

ON

ON

ON

ON

U

ser's

- - - - -

- - - - -

- - - - -

- - - - -

G

uide

-

relay 1a

relay 1b

+10vdc

+5vdc

ground

pull

relay 1a

relay 1b

+10vdc

+5vdc

ground

pull

relay 1a

relay 1b

+10vdc

+5vdc

ground

pull

relay 1a

relay 1b

+10vdc

+5vdc

ground

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Switching Line Voltage Loads:

The Universal DMX Relay's input line voltage is switched to a standard NEMA type 5-15R receptacle. Up
to a 15A inductive or non-inductive load is permitted. The relay will close energizing the load whenever
the DMX level being decoded rises above 127. The relay will open de-energizing the load whenever the
level falls below 128.

Switching Low Voltage Loads:

Low voltage loads are easily switched utilizing the secondary switch closures labeled 'relay 1a' and 'relay
1b' found on the 6 position terminal strip. Limit low voltage loads to a maximum of +-48V and 3 amps.

+-5V / 10V Logic Level Switching:

The 6 position terminal strip allows for a variety of switching configurations. The following diagrams
demonstrate possible solutions to common switching task:

Positive 5V Logic

Positive 10V Logic

MLSC Inc (Meteor Light and Sound Co.)
Mailing address: P.O. BOX 578; Shipping: 8000 Madison Pike, Madison, AL 35758
Phone: [phone] Sales: [phone] Fax: [phone]
[e-mail] www.meteor-usa.com www.meteor-global.com

Active High

GND

Active High

GND

Active Low

GND

Negative 5V Logic

Active Low

GND

Negative 10V Logic

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DMX Line Monitor:

The Universal DMX Relay is equipped with a comprehensive DMX line monitor designed to help isolate
common line problem.

ERROR CODES

DMX LED RELAY LED

POSSIBLE FAULT

Full On

or Off

Dim or Fluttering

3 second flutter

followed by 2

seconds Off

3 second flutter

followed by 2

seconds Off

Disconnected or cut data cable,

Control signal not present

Reversed data lines

(pins 2 & 3 swapped),

Invalid DMX512 control signal

LED Indicators:

Power - The red power indicator will illuminate whenever line voltage is applied. If the indicator

fails to light you should check that the 15A fuse is not blown and that correct line voltage is being
applied.

DMX - The green dmx indicator will flutter or light dimly when a valid DMX512 signal is
present.

Relay - The yellow relay indicator will illuminate whenever the relay is active. Line voltage will
be present at the output connector and the low voltage relay contact will be closed. The indicator
will flutter for 3 seconds and turn Off for 2 seconds in the event of DMX line errors.

DMX Line Termination:

The Universal DMX Relay is equipped with a user selectable 120 ohm terminating resistor. To enable line
termination set dip switch number 10 to the ON position. Line termination should only be activated when
the Universal DMX Relay is the last unit in the chain of units.

MLSC Inc (Meteor Light and Sound Co.)

Mailing address: P.O. BOX 578; Shipping: 8000 Madison Pike, Madison, AL 35758
Phone: [phone] Sales: [phone] Fax: [phone]
[e-mail] www.meteor-usa.com www.meteor-global.com