Pathway LCDM12 Configuration User Manual

Lcdm12 demultiplexer configuration, Led indicators, Connector legend output voltage adjustment

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LCDM12 DEMULTIPLEXER Configuration

LED INDICATORS

CONNECTOR J1

V+

12VDC @ 250mA

COM

Power Supply and Signal Common

CD-

Signal Input USITT DMX512/AMX192
Data/Clock Complement

CD+

Signal Input USITT DMX512/AMX192
Data/Clock True

CONNECTOR J2

Analog Control Outputs
Low-level 0 - +2v
High-level +7 - +15V
Max. Drive 10mA

CONNECTOR J3

PIN

Aux. Control Outputs on 14 pin DIL header

1-12

Channels 1 to 12

13 & 14 Signal Common

CONNECTOR LEGEND

OUTPUT VOLTAGE ADJUSTMENT

STATUS QUO HOLD TIME

S1-1

Disabled (2 Sec. timeout)

OFF

Enabled ( 5 Min. timeout)

ON

Maintains last dimmer levels for set time on loss of input data signal

TEST AND CALIBRATE MODE

S1-2

OFF

When enabled allows analog dimmer outputs to be brought to full
one at a time as selected by the rotary address switches.

FUTURE USE

S1-3

DMX TERMINATION

S1-4

DMX Line Unterminated

OFF

DMX Line Terminated

ON

This switch connects a 100-ohm resistor across the DMX data pair.
The unit should be terminated if it is the last receiving device on the
DMX line.

Disabled (Normal Operation)

Enabled

ON

DIP Switch Settings

ADDRESS SELECTION

Three rotary switches select the offset start address for the unit
in most configurations. In test mode, the switches set dimmers
to full one at a time. The switches are set as (S4) hundreds,
(S3) tens and (S2) ones.

Two LEDs are used to indicate power supply and processor run
status and data receive detection.

OUTPUT CONFIGURATION

Place the unit in test mode (S1-2 on) and set the address
switches to 000 or 001. Ensure that the decoder is connected to
dimmer no. 1 and JP3 is in the correct position. Connect a DC
voltmeter between COM and output terminal no. 1 on the circuit
board. Adjust P1 to achieve the desired high-level full on control
voltage, and adjust P2 for the low-level full off voltage.

CAUTION – Disconnect power from the unit before
making any changes

For 4-12V output, JP2 is installed.

For 12-15V output, JP2 is removed.
JP1 is for factory use only and should not be installed.

Rev.0 ver2.2 release 4

RUN

Glowing steadily indicates power supply and processor
OK; off indicates no power, and flashing indicates
defective processor hardware.

RxD

Glowing steadily indicates data signal received; off
indicates no signal present. Note that an address
selection out of the range of the data signal will
extinguish the LED.

4.1250"

3.7250"

0.2500"

0.250

0

"

4.5

000

"

4.7

500

"

L

C

D

M

1

2

DECO

DE

R REV

.0

99

4

0

S/N

SE

R

IA

L

#

NOTE: The LCDM12 is factory preset for low-level 0V, high-level 10V output

06/03

Printed in Canada

[email protected]

www.pathwayconnect.com

Pathway Connectivity Inc., 480C - 36 Avenue S.E.,
Calgary, AB, T2G 1W4 Canada
tel (403) 243-8110 fax (403) 287-1281

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