User guide
LCRC48GE DMX RELAY CONTROLLER Configuration 
INSTALLATION INSTRUCTIONS 
1 - 
Ensure that relay panel power is off (no indicator LEDs 
glowing on the system motherboard). Remove the metal 
cardframe cover. 
2 - 
Connect the DMX data line at the panel motherboard, with 
D- to the black terminal and D+ to the red terminal. Attach 
the shield drain wire to the SHIELD terminal. 
3 - 
If the DMX line is to be passed through to another panel, 
attach the outgoing wires to the second set of data 
terminals. 
4 - 
If the relay panel is the last panel on the DMX wire run, it is 
recommended that a 100 or 120 ohm 1/4W termination 
resistor be installed between one pair of black and red data 
line terminals. 
5 - 
Configure the controller card according to the following DIP 
switch settings. 
6 - 
Plug the LCRC-48 controller card and one to four LCRD-
12 driver cards firmly into the cardframe. Restore power. 
7 - 
Check that the power LED (between the DIP switch and the 
three rotary switches) is glowing steadily. This indicates +5 
volts present and correct microprocessor operation. A 
flashing LED indicates a defective controller card. 
8 - 
Set the 3 rotary address switches to the dimmer number 
corresponding to the first relay in the panel. Note that 
“000” (the factory default address) and “001” are 
equivalent. 
9 - 
Apply the DMX control signal and observe that the receive 
data LED (at left) is glowing. The LED will not glow if the 
address set on the rotary switches exceeds either 512 or 
the number of dimmer signals present on the data line, if 
the data format does not conform to USITT-DMX512, or if 
the data wires are reversed at the mother board. 
10- 
Verify relay operation with the DMX control system or using 
the card's test function. Ensure that everything is set 
correctly before re-installing the cardframe cover. 
THRESHOLD SELECT  DS-1  DS-2 
20% THRESHOLD (Trigger on at 25%, off at 15%)  ON  ON 
40% THRESHOLD (Trigger on at 45%, off at 35%)  OFF  ON 
60% THRESHOLD (Trigger on at 65%, off at 55%) 
ON  OFF 
80% THRESHOLD (Trigger on at 85%, off at 75%)  OFF  OFF 
RELAY SELECTION  DS-3  DS-4 
1-12 RELAYS INSTALLED 
ON  ON 
13-24 RELAYS INSTALLED 
OFF  ON 
25-36 RELAYS INSTALLED  ON  OFF 
37-48 RELAYS INSTALLED  OFF  OFF 
RESERVED FOR FUTURE USE    DS-5 
RESERVED FOR FUTURE USE 
DS-6 
DIP Switch Settings 
SCAN RATE 
DS-7 
FAST SCAN (50 msec., 20 relays per second) 
ON 
NORMAL SCAN (100 msec., 10 relays per second) 
OFF 
TEST MODE    DS-8 
Test Mode enabled 
ON 
Normal (RUN) Mode 
OFF 
3.7000"
10.3000"
RxD x100 x10 x1 PWR DS
When test mode enabled, relays are turned on one at a time as 
selected by the rotary address switches 
NOTE RE: GROUNDING 
Pay particular attention to the grounding of the data line shield. 
If the DMX controller grounds the shield, that is sufficient. If not, 
a jumper wire must be installed between the data line SHIELD 
terminal and the relay panel COM terminal. Only one such 
ground connection should be made in any one data cable run. 
05/03 
Printed in Canada 
support@pathwayconnect.com 
 www.pathwayconnect.com 
Pathway Connectivity Inc., 480C - 36 Avenue S.E., 
Calgary, AB, T2G 1W4 Canada   
tel (403) 243-8110 fax (403) 287-1281         

