Pathway LCDM12 Configuration User Manual
Lcdm12 demultiplexer configuration, Led indicators, Connector legend output voltage adjustment
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
www.pathwayconnect.com
Pathway Connectivity Inc., 480C - 36 Avenue S.E.,
Calgary, AB, T2G 1W4 Canada
tel (403) 243-8110 fax (403) 287-1281