Pathway LCDM12 User Manual

LCDM12 DEMULTIPLEXER Configuration

CONNECTOR LEGEND

S/N

SERIAL#

4.7500"

CONNECTOR J 1

V+ COM

CD-

12VDC @ 250mA Power Supply and Signal Common

Signal Input USITT DMX512/AMX192 Data/Clock Complement

4.5000"

LCDM12 DECODER REV.0 9940

0.2500"

3.7250"

4.1250"

LED INDICATORS

Two LEDs are used to indicate power supply and proc es s or run status and data receive detection.

Glowing steadily indicates power supply and processor

RUN

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

Glowing steadily indicates data signal received; off

RxD

indicates no signal present. Note that an address selection out of the range of the data signal will extinguish the LED.

OUTPUT CONFIGURATION

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.

CD+

Signal Input USITT DMX512/AMX192 Data/Clock True

CONNECTOR J 2

1-12 13 & 14

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

CONNECTOR J 3

Aux. Control Outputs on 14 pin DIL header Channels 1 to 12

Signal Common

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.

DIP Switch Settings

STATUS QUO HOLD TIME

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

Disabled (Normal Operation) Enabled ON

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

FUTURE USE

S1-1

S1-2

OFF

S1-3

DMX TERMINATION

OUTPUT VOLTAGE ADJUSTMENT

Place the unit in test mode (S1-2 on) and set the address switches to 000 or 001. Ensure that t he 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.

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.

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

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

Rev.0 ver2.2 release 4

support@pathwayconnect.com

www.pathwayconnect.com

Printed in Canada

S1-4

06/03