Pathway LCDM24 Configuration User Manual
Lcdm24 demultiplexer configuration, Gray, Led indicators

LCDM24 DEMULTIPLEXER Configuration
LED INDICATORS
CONNECTOR J1
V+
12VDC @ 250mA
COM
Power Supply and Signal Common
COM
Power Supply and Signal Common
CD-
Signal Input USITT DMX512/AMX192
Data/Clock Complement
CD+
Signal Input USITT DMX512/AMX192
Data/Clock True
ANA
USITT AMX192 or D54 Analog Input (optional)
CONNECTOR J5
Analog Control Outputs
Min. 0 to +10V Max. 0 to +15V
Max. Drive 1mA
CONNECTOR J4
PIN
Aux. Control Outputs on 26 pin DIL header
1-24
Channels 1-24
25 & 26 Signal Common
PINOUT FOR DB25 CONNECTORS
1-12
Channels 1-12
13
Common
14-25
Channels 13-24
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
Disabled (Normal Operation)
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, otherwise leave this switch OFF.
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 proces-
sor 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 con-
nected to dimmer no. 1 and JP1 & JP2 are in the correct
position. Connect a DC voltmeter between COM and out-
put terminal no. 1 on the circuit board. Adjust P1 to
achieve the desired full on control voltage.
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 Con-
nector Legend chart, otherwise DO NOT install JP1
rev.5 ver2.2 release2
05/03
Printed in Canada
www.pathwayconnect.com.com
GRAY
Pathway Connectivity, 480C - 36 Avenue S.E.,
Calgary, AB, T2G 1W4 Canada
tel (403) 243-8110 fax (403) 287-1281
RUN
Glowing steadily indicates power supply and
processor OK; off indicates no power, and flash-
ing indicates defective processor hardware.
RxD
Glowing steadily indicates data signal received;
off indicates no signal present. Note that an ad-
dress selection out of the range of the data signal
will extinguish the LED.
0.2500"
3.6750"
4.0750"
0.25
00"
4.50
00"
4.7
500"
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
LCDM
2
4 DECODER R
E
V
.5
9
93
5
S/N
SE
R
IA
L
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