Pathway LCDM24 User Manual
LCDM24 DEMULTIPLEXER Configuration
CONNECTOR LEGEND
S/N
SERIAL#
24
23
22
21
20
19
18
LCDM24 DECODER REV.5 9935
0.2500"
3.6750"
4.0750"
17
15
13
11
16
14
12
10
9
8
7
6
5
4
3
2
1
4.5000"
0.2500"
LED INDICATORS
Two LEDs are used to indicate power supply and processor run status and data receive detection.
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.
OUTPUT CONFIGURATION
CAUTION – Disconnect power from the unit before
making any changes
For 4-12V output install JP2.
For 12-15V output remove JP2.
If J4 is used with a DB25 output connector, install JP1 to
reassign the analog output signals as shown in the Connector Legend chart, otherwise DO NOT install JP1
OUTPUT VOLTAGE ADJUSTMENT
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 JP1 & JP2 are 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 full on control voltage.
CONNECTOR J1
4.7500"
V+
COM
COM
CD-
CD+
ANA
12VDC @ 250mA
Power Supply and Signal Common
Power Supply and Signal Common
Signal Input USITT DMX512/AMX192
Data/Clock Complement
Signal Input USITT DMX512/AMX192
Data/Clock True
USITT AMX192 or D54 Analog Input (optional)
CONNECTOR J5
PIN
1-24
25 & 26
PINOUT FOR DB25 CONNECTORS
1-12
13
14-25
Analog Control Outputs
Min. 0 to +10V Max. 0 to +15V
Max. Drive 1mA
CONNECTOR J4
Aux. Control Outputs on 26 pin DIL header
Channels 1-24
Signal Common
Channels 1-12
Common
Channels 13-24
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) OFF
Enabled ON
When enabled allows analog dimmer outputs to be brought to full
one at a time as selected by the rotary address switches.
FUTURE USE
DMX TERMINATION
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, otherwise leave this switch OFF.
S1-1
S1-2
S1-3
S1-4
GRAY
rev.5 ver2.2 release2
Pathway Connectivity, 480C - 36 Avenue S.E.,
Calgary, AB, T2G 1W4 Canada
support@pathwayconnect.com
www.pathwayconnect.com.com
tel (403) 243-8110 fax (403) 287-1281
Printed in Canada
05/03
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